XSD Datatypes
XML Schema datatypes used in RDF and semantic web applications.
XML Schema datatypes used in RDF and semantic web applications.
Awesome Semantic Web
A curated list of various semantic web and linked data resources.
This page lists names, links and short descriptions. The original list on GitHub is the source and belongs to its authors.
Standards >XML
Standards >RDF
RDF 1.1 Primer
Primer providing an informal introduction to RDF.
RDF 1.1 Semantics
Formal semantics for RDF and RDFS.
RDF 1.1 Concepts and Abstract Syntax
Defines abstract syntax and core concepts of RDF.
RDF 1.1: On Semantics of RDF Datasets
Semantics for RDF datasets.
RDF Dataset Canonocalization
Unofficial Draft
Standards >RDFS
RDF Schema 1.1
RDF vocabulary description language.
Standards >OWL
Standards >SHACL
Standards >ShEx
Standards >SPARQL
Standards >R2RML
Standards >RDFa
Standards >Tabular
Standards >Open Services for Lifecycle Collaboration (OSLC)
Standards >Web Annotation Data Model
Standards >Linked Data Notifications
Standards >Linked Data Platform
Standards >Linked Data Templates
Standards >Linked Data Fragments (LDF)
Standards >Data Cube extensions
Serialization
Jelly
a high-performance binary serialization format and streaming protocol for RDF knowledge graphs.
Turtle
Terse RDF Triple Language.
TriG
Plain text format for serializing named graphs and RDF Datasets.
YAML-LD
YAML-based format for expressing Linked Data with JSON-LD semantics.
RDF/JSON
RDF 1.1 JSON Alternate Serialization.
N-Triples
Line-based syntax for RDF datasets.
N-Quads
Line-based syntax for RDF datasets.
Notation3
Notation3 (N3): A readable RDF syntax.
RDF/XML
RDF/XML Syntax Specification.
TriX
RDF Triples in XML.
HDT
Binary RDF Representation for Publication and Exchange.
CBOR-LD
CBOR-based format for expressing Linked Data.
Jelly
Performance-oriented binary serialization for RDF and RDF streams.
RDF Thrift
RDF binary serialization in Apache Thrift.
aREF
Another RDF Encoding Form.
RDF/POST
RDF/POST Encoding for RDF.
YARRML
YARRRML is a human readable text-based representation for declarative generation rules. It is a subset of [YAML], a widely used data serialization language designed to be
hextuples
NDJSON serialization
COTTAS
Columnar Triple Table Storage
Datatypes
RDF Datatyping
This document summarizes the common understanding of the RDF Core Working Group (further referred to as WG) with regards to the theoretical foundation for datatyping of literal values and serves as a basis of definition, discussion, and comparison of all proposed schemes for achieving a complete…
Companies
Stardog Union
Knowledge Graph Platform for the Enterprise.
In 3 lists
Enterprise Knowledge Graph Foundation
Foundation promoting adoption of knowledge graphs in enterprise settings.
eccenca Corporate Memory
Build, explore and consume Knowledge Graphs.
Semantic Arts
Enterprise information systems based on flexible data structures and deep semantics.
Swirrl
Linked-data publishing for Government organisations.
SURROUND Australia
Semantic Web consulting and enterprise semantics platform provision.
AtomGraph
Free your data from silos.
Ontopic
Create Knowledge Graphs from databases and datalakes. Core contributors to Ontop and experts in virtualization.
iNovex
Web-based, collaborative ontology and vocabulary editor, and knowledge graph solution platform.
Flur.ee
Provide a full stack of tools for data mapping, linking, vocabulary creation and develop an open source append only triple store (fluree.core).
Softplant
Provide a visual ontology engineering tool called Living Semantic Platform and an Enterprise Architecture Management Platform called Living EAM.
KurrawongAI
a small, Australian-based IT company, specialising in Knowledge Graphs, Data Modelling & AI.
NeverBlink
streaming RDF and neurosymbolic systems.
Industry
Optum
Health related, known to use semantic graphs (marklogic).
DarkLight
DarkLight is an Artificial Intelligence Expert System for Active Cyber Defense and Trusted Information Sharing.
Elsevier
Global information analytics business that helps institutions and professionals advance healthcare, open science and improve performance for the benefit of humanity
In 2 lists
K Health
Self diagnosing app.
Perfect Memory
DAM-as-a-Brain, a Platform that collects, interprets and makes any data and content actionable.
Field 33
Platform to build digital twins of organizations.
Government
Australian Government Linked Data Working Group
Australian government's community of practice for Linked Data & Semantic Web
W3C's Gov enrment Linked Data Working Group archived wiki
"Developing standards which help governments publish their data as effective and usable Linked Data, using Semantic Web technologies"
Research Institutions
The Smart Data Analytics (SDA)
Research group, Institute for Computer Science at the University of Bonn, the Fraunhofer Institute for Intelligent Analysis and Information Systems (IAIS) and the Institute for Applied Computer Science Leipzig.
Agile Knowledge Engineering and Semantic Web (AKSW)
The Research Group Agile Knowledge Engineering and Semantic Web (AKSW) is hosted by the Chair of Business Information Systems (BIS) of the Institute of Computer Science (IfI) / University of Leipzig as well as the Institute for Applied Informatics (InfAI).
WESO
WESO is a research group at the University of Oviedo founded in 2004.
Max Planck Institute for Informatics
Department D5 of the Max Planck Institute for Informatics.
DICE: Data Science Group
Universität Paderborn.
Ontology Engineering Group (OEG)
The Ontology Engineering Group (OEG) is based at the Computer Science School at Universidad Politécnica de Madrid (UPM).
Knowledge Representation and Reasoning Group (KRR)
Research group is based at the Vrije Universiteit Amsterdam (VU).
eXascale Infolab
eXascale Infolab, University of Fribourg, Switzerland.
Wimmics
Wimmics stands for Web-Instrumented Man-Machine Interactions, Communities, and Semantics, a joint research team between INRIA Sophia Antipolis - Méditerranée and I3S (CNRS and Université Côte d'Azur).
Data Semantics Lab
Data Semantics Lab, Wright State University
Stanford BMIR
Stanford University Center for Biomedical Informatics Research
Exascale Infolab
University of Fribourg, Switzerland
IDLAB
Ghent University, Belgium
Data Semantics Lab
Kansas State University, USA
Linköping University Semantic Web Group
Linköping University, Sweden
DBIS Lab
Freiburg, Germany
AD Lab
Freiburg, Germany
SWE @HTWK Leipzig
Web & Software Engineering research group @ Leipzig University of Applied Sciences (HTWK Leipzig)
Information Systems in the Built Environment
Research group @ Eindhoven University of Technology (TU/e), The Netherlands
Academic Journals
Databases
MillenniumDB
(OS)
qEndpoint
(OS) A highly scalable RDF triple store with full-text and GeoSPARQL support.
Vedas
(OS) VEDAS is a RDF store engine that be able to query with SPARQL and run on single GPU.
Akutan
(OS) A distributed knowledge graph store written in Golang. Formerly known as Beam.
Jena TDB
(OS).
Ontotext GraphDB™
($/F).
Halyard
(OS).
Stardog Union
Knowledge Graph Platform for the Enterprise.
In 3 lists
Strabon
(OS) A spatiotemporal RDF store.
Systap Blazegraph™
($/OS).
Marklogic
($).
Virtuoso
($/OS).
In 2 lists
Oracle
($).
Allegrograph
($/F).
BrightstarDB
(OS) A native RDF database for the .NET platform written in C#.
CM-Well
(OS).
Apache Rya
(OS).
4Store
(OS).
Mulgara
(OS).
Parliament
(OS).
SANSA
(OS).
hbase-rdf
(OS).
TriplePlace
Light weight and flexible Triple Store for Android.
Node-Quadstore
(OS) A LevelDB-backed graph database for Node.js supporting quads, SPARQL queries and the RDF/JS interface.
Wimmics
Wimmics stands for Web-Instrumented Man-Machine Interactions, Communities, and Semantics, a joint research team between INRIA Sophia Antipolis - Méditerranée and I3S (CNRS and Université Côte d'Azur).
luposdate
(OS) Semantic Web database.
wallix/triplestore
(OS) Nifty library to manage, query and store RDF triples.
levelgraph
(OS) Graph database JS style for Node.js and the Browser.
gStore
(OS) - a graph based RDF triple store.
ostrich
(OS) bird Versioned RDF triple store (Offset-enabled TRIple store for CHangesets).
QuitStore
Quads in Git - Git versioned RDF Triple Store with support for branching and mergin and more.
NitrosBase
(F)
Dydra
($) A cloud-based graph database.
redstore
(OS) RedStore is a lightweight RDF triplestore written in C using the Redland library.
librdf.sqlite
(OS) improved SQLite RDF triple store for Redland librdf.
neptune
($) Amazon Neptune is a fast, reliable, fully managed graph database service that makes it easy to build and run applications that work with highly connected datasets.
In 2 lists
fabric
(OS) Fabric is a simple triplestore written in Golang.
kineo
(OS) A persistent RDF quadstore and SPARQL engine.
RDFox
($)
Fluree
(OS) Blockchain based triplestore.
Oxigraph
(OS) a graph database implementing the SPARQL standard and written in Rust.
In 3 lists
Triply
(F/$)
Atomic-Server
(OS) Graph database + HTTP(S) server with authorization and versioning. Supports a strict subset of RDF.
In 2 lists
RDF4j
(OS) Graph database supporting native, memory, LMDB, Solr, Elastic backends. Formerly known as Sesame.
Copernic
(OS) Data, and its history, via change requests at scale.
In 2 lists
Tentris
(OS) A tensor-optimized RDF data store, supporting SPARQL queries with Basic Graph Pattern capabilities.
QLever
(OS) a SPARQL engine that can efficiently index and query very large knowledge graphs with over a trillion triples on a single standard PC or server
In 2 lists
Databases >Academic
TripleRush
(OS).
corese
(OS).
rdf3x
(OS).
gh-rdf3x
(OS).
Qamel
RDF4J ported to Andriod.
DREAM
DREAM - Distributed RDF Engine with Adaptive Query Planner and Minimal Communication.
RIQ
RIQ is a new software tool for fast processing of SPARQL queries on RDF quadruples.
hyrise
Hyrise is a research in-memory database.
SPARQL >Streaming SPARQL
Katts
Katts is A Triple Torrent Sieve.
morph
Sparql-stream sensor queries.
sepa
A JAVA implementation of the SPARQL Event Processing Architecture including the engine, APIs and tools.
Linked Data Event Streams
The Linked Data Event Stream (LDES) server is a configurable component that can be used to ingest, store, transform and (re-)publish an LDES
SPARQL >Federated SPARQL
SPARQL >SPARQL Applications
SPARQL2Git
Easily store and curate SPARQL queries (and their associated Linked Data APIs) in GitHub.
sparql-transformer
A generic JSON-LD transformer.
sparqlab
Lab for exercising SPARQL.
SNORQL
Ajaxy front-end for exploring triple stores.
d3-sparql
Query a SPARQL endpoint with a SELECT query and get the data ready to be used with d3js
In 2 lists
d3sparql
JavaScript library for executing SPARQL query and transforming resulted JSON for visualization in D3.js.
jdbc4sparql
A JDBC driver that takes data from SPARQL endpoints or RDF graphs.
odata2sparql
An OData proxy server that takes data from SPARQL endpoints or RDF graphs and publishes as OData V4 endpoint.
lens2odata
A GUI for discovery, search, and graph of RDF sources.
SPARQL2vec
SPARQL query embeddings for predictive Knowledge Graph querying models.
vec2sparql
Translate vector embeddings to SPARQL queries.
sparql2xquery
SPARQL to XQuery Translator for use with MarkLogic Semantic Toolkit.
YASGUI Matdata fork
Yet Another Sparql GUI - Has more features, bugfixes and upgraded dependencies compared to Zazuko and Triply forks.
YASGUI Triply fork
Yet Another Sparql GUI.
pubby
A Linked Data frontend for SPARQL endpoints.
spanqit
Java-based SPARQL query generator.
squebi
Squebi is a SPARQL editor and SPARQL result visualizer.
zeppelin-sparql
Zeppelin sparql interpreter.
Sparql-cli
Command line API for SPARQL.
Trifid
Lightweight Linked Data Server and Proxy
asqc
SPARQL query client (pronounced "ask").
visu
Visual SPARQL query tool.
Porthole
Mac SPARQL editor and client.
datastudio-sparql-connector
SPARQL Connector for Google Data Studio.
QLever
(OS) a SPARQL engine that can efficiently index and query very large knowledge graphs with over a trillion triples on a single standard PC or server
In 2 lists
sage-engine
a SPARQL query engine for public Linked Data providers.
sepa
A JAVA implementation of the SPARQL Event Processing Architecture including the engine, APIs and tools.
Processor
Ontology-driven Linked Data processor and server for SPARQL backends.
LinkedDataHub
SPARQL-powered Knowledge Graph management system.
SparqlBlocks
Build SPARQL queries with blocks
SparqlProg
composable SPARQL using logic programming
Sparklis
natural language query builder to explore and query endpoints with all the power of SPARQL yet without any knowledge of SPARQL.
json-rql
SPARQL with a JSON-LD super-set syntax (like GraphQL for the semantic web)
Benchmarks
FedShop
A Benchmark for Testing the Scalability of SPARQL Federation Engines
dice-group/triplestore-benchmarks
An Evaluation of Triplestore Benchamrks.
Hobbit
Holistic Benchmarking of Big Linked Data.
IGUANA
IGUANA is a benchmark execution framework for triple stores.
SRBench
A streaming sparql benchmark.
TFT
TFT (Tester for Triplestore) is a script PHP to pass tests through a SPARQL service.
OTM Benchmark
A benchmark of object-triple mapping (OTM) libraries.
GTFS-Madrid-Bench
A benchmark for performance and scalability of knowledge graph construction from heterogeneous data sources
GeoSPARQL Compliance Benchmark
A HOBBIT benchmark to check for the GeoSPARQL compliance of triple store implementations
RDF Library Benchmark
Comparison of HDT and non-HDT RDF libraries for query time and memory usage.
RiverBench
open and collaborative benchmark suite for streaming and non-streaming RDF systems.
LUBM4OBDA
A benchmark for OBDA systems with inference and meta Knowledge
GraphQL
semantic-graphql
Create GraphQL schemas from RDF ontologies.
hypergraphql
GraphQL interface for querying and serving linked data on the Web.
UltraGraphQL
extends HyperGraphQL with automatic bootstrapping phase and GraphQL mutations
Grasp
GraphQL endpoint wrapping SPARQL endpoints, declarative approach using handlebars Templates for SPARQL queries
Linked Data Fragments
tomayac/ldf-client
Polymer Linked Data Fragments client.
LDFlex
A JavaScript DSL for querying Linked Data on the Web.
comunica
A modular framework for querying Linked Data on the Web.
HeFQUIN
A query federation engine for heterogeneous federations of graph data sources.
Linked Data Platform (LDP)
fedora
Repository platform with native linked data support.
warp
Warp an LDP file manager.
Marmotta
Apache linked data platform implementation.
Elda
Linked data platform from Epimorphics.
gold
Linked Data server for Go.
CarbonLDP
($)
ldpserver
A mini LDP Server written in Go.
ldp-coap-framework
Linked Data Platform for the Constrained Application Protocol
cavendish
A LDP Implementation backed by BlazeGraph.
Prez
(OS) a semi-LDP implementation, base on the W3C's Content Negotation By Profile API
Ecosystem >Conferences
Ecosystem >Blogs
Ecosystem >Groups
RDF-DEV
RDF-DEV COMMUNITY GROUP.
KG-Construction
KG-Construction W3C Community Group
Knowledge Graph Management
Metaphacts
($) End-to-end platform to create and utilize enterprise knowledge graphs.
OntoWiki
(OS) Semantic data wiki as well as Linked Data publishing engine.
GNOSS-Sherlock
($) Cognitive Intelligence tool for machines to understand us.
Wikibase
(OS) Collection of applications and libraries for creating, managing and sharing structured data.
eccenca Corporate Memory
Build, explore and consume Knowledge Graphs.
Atomic Data Browser
(OS) Create, model, edit, view and share Linked Data.
Blue Brain Nexus
(OS) A knowledge graph for data-driven science
Web Annotations
Mapping
G2GML
Map RDF graphs to property graphs and output pg, json-pg, neo4j, pgx, aws or dot formats
triplify-csv
CLI and Python package to generate triples or nquads from CSV files and a configuration file.
Karma
Transform data expressed in multiple data formats into RDF.
Mapeathor
Definition of Excel-based mappings and translation to [R2]RML mappings
RMLMapper
Java-based RML Processor for transforming heterogeneous data into RDF.
RMLEditor
Community Edition of the RML Editor to create RML mappings in a visual way.
ShExML
Shape Expressions Mapping Language. Map heterogeneous data via Shape Expression (ShEx).
ReDeFer XSD2OWL
Map XSD XML Schemas into the Web Ontology Language (OWL).
ReDeFer XML2RDF
Map XML into RDF.
Silk
Linked data integration framework, connectes different linked data resources and transforms structured data source.
KOMMA
Framework for mapping RDF data to Java objects using annotations, enabling object-oriented interaction with RDF models.
Mapping >Geo
TripleGeo
TripleGeo utility for converting geospatial data into triples.
GeoSPARQL
Major Open Geospatial Consortium Semantic Web spatial data stadard
GeoSPARQL DGGS
An RDFlib-based SPARQL extensions library for Discrete Global Grid Systems geospatial data
Mapping >Excel
Mapping >CSV/Tabular
guide-o-matic
Xquery scripts to convert fielded text (CSV) files to RDF serialized as XML, Turtle, and JSON-LD.
COW
CSV On the Web (CSVW) converter.
CSV2RDF
CSV to RDF mapper.
CSV2RDF
Streaming, transforming, SPARQL-based CSV to RDF converter
Morph-CSV
Exploitation of RML+FnO and CSVW for ensuring the effectiveness of SPARQL-to-SQL systems.
Mapping >Object to RDF Mapping
java2rdf
A simple library to map Java objects and Java beans onto RDF/OWL
PA4RDF
functionality on top of an RDF store while accounting for and exploiting the fundamental differences between graph storage and relational storage.
Empire
JPA implementation for RDF
Pinto
A lightweight framework for mapping Java Beans into RDF and back again
Som(m)er
Semantic Object (Metadata) MappER
surfrdf
SuRF: a python Object RDF Mapper (ORM).
jtriple
A Java object model binding for RDF.
sparql-template
RDF store traversal with Jena API via automatic mapping between POJO and SPARQL.
JOPA
A Java object-triple mapping library for RDF4J, Jena and OWL API.
RomanticWeb
RDF-Object Mapping for the Semantic Web.
XML2RDF-DataTransformation-MappingTool
XML2RDF Data Transformation Tool (Mapping Tool): This generic data transformation tool maps XML data files to RDF files, given a schema matching definition, based on this Mapping Language Schema.
Mapping >RDB to RDF
d2rq
Database to RDF mapping engine and SPARQL server.
Sparqlify
Sparql -> SQL Rewriter enabling virtual RDB -> RDF mappings.
Sparqlify-Extendsions
Extension projects for Sparqlify.
quetzal
SPARQL to SQL translation engine for multiple backends, such as DB2, PostgreSQL and Apache Spark.
Mapping >RDF to Property Graphs
sparql-gremlin
SPARQL to Gremlin Translator available as a plugin of the popular Apache TinkerPop graph computing framework.
In 2 lists
Gremlinator
SPARQL to Gremlin standalone Translator available as an independent implementation for open use in custom use cases.
Mapping >XML
ontmalizer
Comprehensive transformations of XML Schemas (XSD) and XML data to RDF/OWL automatically.
R2RML-Parser
An R2RML implementation that can export relational database contents as RDF graphs.
Morph-KGC
An R2RML engine that creates large knowledge graphs from RDB.
MusicBrainz-R2RML
R2RML mappings for the MusicBrainz schema.
ontop
Ontop is a platform to query relational databases as Virtual RDF Graphs using SPARQL. It's fast and is packed with features.
Ontopic Studio
($) Ontopic Studio is a GUI driven no-code application for designing standards compliant large R2RML mappings usable for Virtual RDF Graphs and RDF triple materialization. Academics can request free licenses.
In 2 lists
db2triples
Antidot implementations of R2RML and Direct Mapping specifications.
Juma
Juma, jigsaw puzzles for representing mapping, is a method that applies the block metaphor to mapping languages.
rdf2rml
R2RML Generation from simple examples.
AutoMap4OBDA
AutoMap4OBDA: Automated Generation of R2RML Mappings for OBDA.
Map-On
A web-based editor for visual ontology mapping for R2RML documents.
RMLMapper
Java-based RML Processor for transforming heterogeneous data into RDF.
RML
RDF Mapping language for mapping JSON, CSV and XML to RDF.
CARML
CARML RML engine for mapping CSV, XML and JSON files to RDF
SDM-RDFizer
RML engine for efficient transformation of CSV, RDB, XML and JSON to RDF
FuMap
Efficient preprocessing of transformation rules described in RML+FnO mappings.
SPARQL Anything
A system for Semantic Web re-engineering that allows users to query anything with SPARQL.
any23
was "moved into the Attic in 2023-06"
J2RM
A tool to process mappings from JSON data to RDF triples guided by an OWL2 ontology structure.
mapping-template
A template-based component exploiting Apache Velocity to define mappings to/from RDF.
Ontologies
LOV
Linked Open Vocabularies. Portal / search tool for vocabularies.
BioPortal
Open repository with tools for ontologies and SKOS vocabularies; biomedical content dominates but all research domains welcome
prefix.zazuko.com
Similar to LOV, but with a richer search interface
Ontology Lookup Service (OLS)
OLS is a repository for biomedical ontologies that aims to provide a single point of access to the latest ontology versions.
OntoPortal
The BioPortal software in Virtual Appliance (deployable) form
gist
minimalist enterprise upper ontology - max coverage, fewest primitives, least ambiguity.
Plow
Ontology package manager with semantic versioning and an open domain-agnostic ontology registry that anyone can publish to.
BE-OLS
Build Environment Ontology Lookup Service: an open repository and website of more than 140 built environment-related ontologies
Ontologies >World Wide Web Consortium (W3C)
WGS84
Basic Geo (WGS84 lat/long) Vocabulary.
skos
SKOS Simple Knowledge Organization System.
skos-xl
SKOS Simple Knowledge Organization System eXtension for Labels.
vcard
vCard Ontology - for describing People and Organizations.
void
Describing Linked Datasets with the VoID Vocabulary.
time
Time Ontology in OWL.
org
The Organization Ontology.
data-cube
The RDF Data Cube Vocabulary.
dqv
Vocabulary for describing quality metadata.
prov-o
Represent provenance information.
dcat
DCAT is an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
prof
The Profiles Ontology is an RDF vocabulary to describe profiles of (one or more) standards for information resources.
odrl-model
ODRL Policy Information Model V2.2 and odrl-vocab ODRL Vocabulary & Expression V2.2
Ontologies >European Commission
Core Vocabularies
Vocabularies developed for/by public administrations.
Ontologies >Community
foaf
Friend of a Friend (FOAF) ontology.
uberon
Integrated cross-species ontology covering anatomical structures in animals.
juso-ontology
Vocabulary for describing geographical addresses and features.
obo-relations
Relation Ontology. Relationship types shared across multiple ontologies.
orderedlistonto
The Ordered List Ontology.
evidenceontology
EVIDENCE & CONCLUSION ONTOLOGY.
bevon
Beverage ontology.
cyber-ontology
Cyber Intelligence Ontology.
doap
RDF schema for describing software projects.
qb4olap
A Vocabulary for Business Intelligence over Linked Data.
Hydra
A lightweight vocabulary for hypermedia-driven Web APIs.
vocab-transit
RDF Schema for transit data.
ssso
Specification of Simple Service Status Ontology.
dso
Specification of Document Service Ontology.
schema.org
Structured data on the Internet (Google, Microsoft, Yahoo and Yandex).
SPAR
Semantic Publishing and Referencing Ontologies.
BFO
Basic Formal Ontology.
CCO
Common Core Ontology Suite.
TOVE
Toronto Virtual Enterprise Ontologies.
VIVO ISF
Researchers and the full context in which they work.
yago
YAGO is a huge semantic knowledge base, derived from Wikipedia WordNet and GeoNames.
Ontologies >Educational
MMOntologies
Multimedia ontologies studied for the paper "The Landscape of Multimedia Ontologies in the last Decade".
Wine
Wine Ontology is a popular example of an OWL ontology.
Pizza
A step-by-step guide to modelling in OWL using the popular Protégé OWL tools.
New Pizza
An updated version of the well established pizza ontology tutorial covering Protégé 5+ as well as WebProtégé and introduces SHACL shapes.
Coursera - Web of Data
A joint initiative between EIT Digital, Université de Nice Sophia-Antipolis / Université Côte d'Azur and INRIA - introduces the Linked Data standards and principles that provide the foundation of the Semantic web.
OBO Academy
open, online, self-paced training materials on semantic engineering, ontology curation and ontology development.
Ontology Engineering Curriculum
A free 147-lesson curriculum published as OWL 2 and SKOS, where every lesson is crosswalked to the standard it teaches and a SHACL release gate runs in CI.
Ontology Development
protégé
Ontology editor and framework for building intelligent systems.
In 2 lists
OntoVerbal
OntoVerbal is a Protege 4.2 plugin that generates natural language descriptions for classes for an ontology written in OWL.
OTTR
Reasonable Ontology Templates.
dosdp-tools
dead simple owl design patterns (template tool)
OWLSharp
.NET library for OWL2-DL ontology modeling, validation and reasoning
Ontology Development Kit
set up a git repo for developing an ontology
ROBOT
command line swiss-army knife for ontology developers
grafo
Visual graph development
OOPS! (Ontology Pitfall Scanner!)
a web application to detect (semi)automatically 33 pitfalls or errors in ontologies. A web service is also provided.
Cameo Concept Modeler
a cross-platform app for OWL ontology modeling, visualization, and natural-language validation
iNovex
Web-based, collaborative ontology and vocabulary editor, and knowledge graph solution platform.
RDF Studio
Free web-based IDE with an advanced visual OWL/RDFS ontology editor, SHACL shapes validator and auto-generator, ontology maturity scoring, and schema-data drift detection.
LinkML-Scala
fast, portable (JS/JVM/native), and robust implementation of LinkML.
Reasoners
FaCT++
and pyfactxx
cel
A lightweight Description Logic reasoner for large-scale biomedical ontologies.
reasonable
OWL 2 Reasoner built on DataFrog
eye
Euler Yet another proof Engine.
Sequoia
Sequoia is a consequence-based OWL 2 DL Reasoner supporting multithreaded reasoning.
konclude
Konclude is a high-performance reasoner for large and expressive ontologies.
rdf-reasoner-konclude
Konclude OWL-DL tableau reasoning kernel compiled to WebAssembly. Runs in browsers and Node.js; async TypeScript API with RDF.js Quad types and N3.js Store integration.
owlproofs
Extension to the OWL API to request proofs of entailments from the reasoner.
Books
Programming >C
Programming >C#
Programming >C++
hdt-cpp
Read and query HDT
Programming >Clojure
grafter
Linked Data & RDF Manufacturing Tools in Clojure.
kr
Clojure API for RDF and SPARQL - provides consistent access to APIs including Jena and Sesame.
clj-plaza
Clojure rdf framework.
seabass
A library for working with RDF with Jena in Clojure.
aristotle
RDF, SPARQL and OWL for Clojure
aesopica
A Clojure library designed to help create Semantic Web based applications.
igraph
IGraph defines a protocol which aims to provide a general interface to a variety of graph-based representations.
csv2rdf (clojure)
Clojure library and application for converting CSV to RDF
matcha
tea: SPARQL-like DSL for querying in-memory Linked Data Models
table2qb
A generic pipeline for converting tabular data into rdf data cubes using csvw
Programming >Elixir
RDF.ex
An implementation of the RDF data model in Elixir.
In 2 lists
Programming >Go
Programming >Groovy
Programming >Haskell
Programming >Java
RDF4J
(formerly known as Sesame) is an open source Java framework for processing RDF data. This includes parsing, storing, inferencing and querying of/over such data. It offers an easy-to-use API that can be connected to all leading RDF storage solutions. It allows you to connect with SPARQL endpoints…
In 2 lists
Jena
A framework for developing Semantic Web and Linked Data applications in Java. License: Apache 2.
In 2 lists
soarql-dl-api
A query engine for SPARQL-DL.
nxparser
Java parsers for different RDF serialisations + API + tools + JAX-RS integration.
JB4JSON-LD
, JB4JSON-LD Jackson - Java binding for JSON-LD (mapping POJO - JSON-LD).
titanium-json-ld
An implementation of the JSON-LD 1.1 (JSON-based Serialization for Linked Data) specification in Java utilizing Jakarta JSON Processing.
hdt-java
Read and query HDT
Jelly-JVM
implementation of the Jelly binary RDF format for Java and Scala, works with Apache Jena, RDF4J, and Titanium.
swrlapi
The SWRLAPI is a Java API for working with the OWL-based SWRL rule and SQWRL query languages. It includes graphical tools for editing and executing rules and queries.
cp-common-utils
Collection of utilty classes from Clark & Parsia.
jqudt
Java library for working with the QUDT ontology and data using it.
JenaSecurity
Security (Permissions) wrapper around Jena RDF implementation.
cassa
SPARQL 1.1 Graph Store HTTP Protocol implementation with plugable backends.
owlapitools
Set of independent add-ons for OWL API.
d-sparq
A distributed, scalable and efficient RDF query engine.
Programming >JavaScript
sparql-engine
An open-source framework for building SPARQL query engines in Javascript/Typescript.
Jessa
Javascript Suite for Sparql Access.
RDFJS
Github Organization that maintains modern JavaScript RDF libraries based on open, maintained standards.
rdflib.js
Linked Data API for JavaScript.
sparks
Sparks is a set of JavaScript libraries designed for simplifying the access to RDF data.
SPARQL.js
A parser for the SPARQL query language in JavaScript.
sparqlalgebrajs
SPARQL to SPARQL Algebra converter.
RDForms
Construct form-based RDF editors in a web environment.
graphy.js
A collection of RDF libraries for JavaScript developers with a focus on performance and usability.
levelgraph-n3
LevelGraph plugin for storing N3/Turtle/RDF data.
@zazuko/rdf-vocabularies
Library of common vocabularies.
link-redux
View RDF resources in React.
@ontologies
Like @types, but for ontologies.
rdfdev-js
Collection of libraries to ease in JavaScript RDF development.
sparql-to-jsonld
Convert SPARQL results to JSON-LD.
node-sparql-hollandaise
Node.js SPARQL client library.
react-foaf
React components for FOAF (Friend of a Friend) ontology.
graphql-to-sparql.js
Convert GraphQL queries to SPARQL.
sparqljson-to-tree.js
Convert SPARQL JSON results to a tree structure.
LDPjs
JavaScript library for Linked Data Platform.
skosjs
JavaScript library for working with SKOS concepts.
jarql
Execute SPARQL Construct queries against JSON files.
shex.js
JavaScript implementation of Shape Expressions (ShEx).
DataBorg/client
Highly versatile SPARQL client for modern age.
Unravel-RDF
JavaScript developer-oriented query abstraction for building interactive applications over RDF knowledge graphs.
Programming >Kotlin
Programming >ObjectiveC
SPARQLKit
An implementation of the SPARQL 1.1 query language in Objective-C.
Programming >OCaml
ocaml-rdf
Manipulate RDF graphs and execute Sparql queries.
Programming >Perl
Programming >PHP
EasyRdf
abandoned by the author
sweetrdf/easyrdf
Maintained fork, fully compatible to EasyRdf v1.x, runs on latest PHP versions.
rdfInterface
Common interfaces for each RDF stack layer (parser, serializer, dataset, SPARQL client, etc.) to enable interoperability between different implementations. Think of it as PSR for RDF.
quickRdf
A RDF library providing implementation of terms and dataset (using rdfInterface).
quickRdfIo
Collection of RDF parsers and serializers (using rdfInterface)
rdfHelpers
A set of helper classes for implementing the rdfInterface.
sparqlClient
A SPARQL client library for the rdfInterface ecosystem with the API inspired by the PDO.
Programming >Prolog
Programming >Python
RDFlib
A Python library for RDF manipulation, storage & serialization.
sparqlx
A modern SPARQL 1.2 Protocol client library based on httpx.
SPARQLWrapper
A wrapper for a remote SPARQL endpoint.
sparql-client
Python API to query a SPARQL endpoint.
Fuxi
Bi-directional logical reasoning system for the semantic web.
PyShEx
ShEx interpreter for ShEx 2.0.
Django-rdf
An RDF engine for Django projects.
Djubby
Linked Data frontend for SPARQL endpoints for Django.
sparta
Simple API for RDF.
rdftools
Simple collection of python RDF tools.
cysparql
CySparql is a python wrapper over the excellent rasqal RDF library for parsing SPARQL queries.
pyHDT
Read and query HDT documents with ease in Python
calamus
JSON-LD Serialization Library for Python based on Marshmallow
gastrodon
Toolkit to display, analyze, and visualize data and documents based on RDF graphs and the SPARQL query language using Pandas, Jupyter, and other Python ecosystem tools.
kglab
The kglab library provides a simple abstraction layer in Python for building knowledge graphs.
AmpliGraph
Python library for Representation Learning on Knowledge Graphs.
Ontospy
Python library and command-line interface for inspecting and visualizing RDF models.
dipper
Data Ingestion Pipeline for Monarch.
quepy
Python framework for transforming natural language questions to SPARQL queries.
semantic-python-overview
List of Python specific semantic web tools and resources.
COTTAS
Columnar Triple Table Storage
pyjelly
Python implementation of the high-performance Jelly binary format, supporting rdflib.
open-kgo
Unified Python API over nine knowledge-graph backend families (including RDF/SPARQL) that validates each traversal against a declared ontology and rejects semantically invalid hops.
Programming >R
csvwr
Read and write CSVW tables and metadata in R
rcsvw
R package that implements the candidate recommendations from the W3C CSV on the Web Working Group
Linked Data Frames
Work with linked-data idiomatically in R using data frames (expresses RDF resources and descriptions as S3 objects)
Programming >Ruby
rdf-serializers
Adds RDF serialization to Ruby on Rails active model serializers
Programming >Rust
Horned OWL
Horned-OWL is a library for manipulating OWL data.
Oxigraph
(OS) a graph database implementing the SPARQL standard and written in Rust.
In 3 lists
sophia_rs
Sophia: a Rust toolkit for RDF and Linked Data.
rio
Rio is a low level library which provides conformant and fast parsers and formatters for RDF related file formats.
rdf-rs
rdf is a library for the Resource Description Framework (RDF) and SPARQL implemented in Rust.
rome
Rome is an RDF library written in safe Rust.
atomic-lib
Library for managing and (de)serializaing Atomic Data, a strict subset of RDF.
harriet
A format-preserving serialization/deserialization library for Turtle.
owlish
An OWL library in Rust modeled on the OWL functional syntax.
RDFtk
An RDF Toolkit for Rust
hdt-rs
Read and query HDT
PurRDF
RDF 1.2 engine with SPARQL, SHACL, ShEx and entailment, exposing one identical behaviour in Rust, Python, WebAssembly and C.
Programming >Scala
banana-rdf
A library for RDF, SPARQL and Linked Data technologies in Scala.
SANSA-RDF
Library to read RDF files into Spark or Flink.
scowl
A Scala DSL for programming with the OWL API.
Programming >Swift
swift-sparql-syntax
SPARQL 1.1 Parser.
URITemplate
Swift implementation of URI Template (RFC6570).
swift-serd
Swift package wrapper for the Serd RDF library.
kineo
(OS) A persistent RDF quadstore and SPARQL engine.
swift-hdt
An HDT RDF Parser.
Editors >VIM
Editors >Emacs
ttl-mode
Supports both ttl and n3, indentation, some electric punctuation and hungry delete.
nxml-mode
nxml-mode is a major mode for editing XML
ELOT
Emacs Literate Ontology Tool, write OWL ontologies using org-mode
emacs-ottr-toolkit
Emacs toolkit for creating OTTR templates for ontology building
Editors >JetBrains IDEs: Intellij IDEA, PyCharm, etc.
LNKD.tech Editor
Editor for Turtle (Terse RDF Triple Language, TTL) files
RDF and SPARQL
Adds support for the RDF 1.2 (Turtle, TriG, N-Triples, N-Quads), SPARQL 1.2 and ShExC 2.1 languages as well as a bunch of productivity features
Editors >Visual Studio Code
Editors >TextMate
Editors >Sublime Text 3
Linked Data syntaxes
Syntax highlighting for SPARQL 1.1/SPARQL*, Turtle/Turtle*, TriG, N-Triples, N-Quads, Notation3, and ShExC.
Editors >BBedit
Geo
Browsers
Galacteek
Multi-platform Qt5-based browser and semantic agent for the distributed web. Uses RDF graphs and P2P-SparQL to synchronize linked-data between peers.
In 3 lists
LodView
RDF browser written in Java based on Spring and Jena using a SPARQL endpoint.
RhizomerEye
A Web application for interactive exploration of semantic and linked data available from SPARQL endpoints.
RickView
RDF browser for small knowledge bases written in Rust using an in-memory graph, doesn't require a SPARQL endpoint. Optimized for high performance and low resource usage.
Visualization
d3-sparql
Query a SPARQL endpoint with a SELECT query and get the data ready to be used with d3js
In 2 lists
VOWL
Visual Notation for OWL Ontologies.
rdfdot
Tools for drawing graphs from RDF files with GraphViz.
ontodia
Ontodia data diagraming library.
Reactodia
Ontodia fork with additional features such as grouping and annotations
rdf2rml
R2RML Generation from simple examples.
sgvizler
JavaScript library for visualizing SPARQL query results in SVG.
OWLGrEd
UML style graphical editor for OWL ontologies.
Ontology Visualisation
Create graphs from RDF using GraphViz.
SparqlBlocks
Build SPARQL queries with blocks
Cameo Concept Modeler
a cross-platform app for OWL ontology modeling, visualization, and natural-language validation
ReDeFer RDF2SVG
Render RDF as a SVG graph.
ReDeFer RDF2HTML
Render RDF as HTML.
Zazuko's RDF Sketch
Graphical RDF Explorer for small datasets
KinGVisher
Visualize knowledge graphs in a web browser
RdfGlance
Fast desktop RDF graph visualization and data viewer programmed in Rust
G.V
($/(F)) G dot V Graph Database Exploration and Visualization UI for SPARQL, Cypher and Gremlin
SemSpect
Graph exploration and data-driven no-code querying tool for Neo4j and RDF data
RDF Studio
Free web-based IDE with an advanced visual OWL/RDFS ontology editor, SHACL shapes validator and auto-generator, ontology maturity scoring, and schema-data drift detection.
metabase-sparql-driver
Build charts and dashboards from any SPARQL endpoint in Metabase, using its visual query builder or native SPARQL queries.
Data Cube
Datasets
BBC - Ontologies
The ontologies the BBC is using to support its audience facing applications such as BBC Sport, BBC Education, BBC Music, News projects and more.
permid
PermID: Connecting Data to the World.
wikidata
Wikidata is a free and open knowledge base that can be read and edited by both humans and machines.
lod-cloud
The Linked Open Data Cloud.
IoT
DevOps
r43ples
Revision Management for the Semantic Web.
RDFUnit
RDF Unit testing and validation framework.
rdf-toolkit
RDF Serializer, to be used in a git commit-hook to force automatic correct rewrite of every OWL ontology.
TripleChecker
Look for common errors in an RDF Document.
owl2vcs
owl2vcs is a set of tools designed to facilitate version control of OWL 2 ontologies using version control systems.
dowl
Generate docs for RDF/OWL Schema.
TurtleValidator
A Turtle validator on command line and in browser.
shi3ld-http
Shi3ld for HTTP: Access control for HTTP operations on Linked Data.
babel
A library for skolemising (or canonicalising) blank node labels in RDF graphs.
rdf.sh
A multi-tool shell script for doing Semantic Web jobs on the command line.
QuitStore
Quads in Git - Git versioned RDF Triple Store with support for branching and mergin and more.
QuitDiff
Git diff into SparQL / Eccrev vocabulary.
Ontogen
A version control system for RDF datasets.
Platforms
trinity
An application development platform for Microsoft .NET and Mono. It allows to easily build Linked Data and Semantic Web applications based on RDF.
Wings
A workflow system.
rww-play
An implementation in Play of a number of tools to build a Read-Write-Web server using Play2.x and akka.
prissma-studio
PRISSMA Studio: a web application to create Prisms, context-aware presentation metadata for Linked Data visualization.
lodspeakr
Framework to create Linked Data-based applications.
comunica
Flexible meta query engine for the Web.
imagesnippets
ImageSnippets is a complete metadata editing interface that enables someone who knows little to nothing about RDF, OWL, ontologies, or even URIs to create descriptions for images using Linked Data which is written in RDF.
Linked Data Reactor (LD-R)
A full-stack platform for building adaptive component-based Linked Data applications in NodeJS and React.
LDIF
Linked Data Integration Framework.
m-ld
Real-time information sharing component using RDF and conflict-free replicated data types (CRDTs)
In 3 lists
pyLDAPI
A Python rdflib-based API framework for Linked Data via the W3C's Content Negotiation by Profile
Chimera
A framework providing Apache Camel components to support data conversion to/from RDF and service integration with RDF graphs
Tools
tawny-owl
Build OWL Ontologies in a Programmatic Environment.
Widoco
A Wizard for documenting and publishing ontologies on the Web.
sesame-vocab-builder
Sesame Vocab Builder provides a command line tool that allows to create constants for RDF primitives for a given namespace out of RDF ontology files.
qonsole
A simple console for running SPARQL queries and displaying results.
ntcat
Command line tool for concatenating NTriples documents.
ripple
Semantic Web scripting language.
schema_salad
Semantic Annotations for Linked Avro Data.
RDFConvert
RDFConvert is a simple command-line tool for converting RDF file betweeen different syntax formats.
ont-converter
Written in Kotlin, a simple command-line utility to convert any RDF graph to OWL2 ontology.
Bubastis
Tool for detecting asserted logical differences between two ontologies, such as between versions.
grlc
Web APIs from SPARQL queries.
Openlink Structured Data Sniffer
Browser extension for Google Chrome, Microsoft Edge, Mozilla Firefox, Opera, and Vivaldi that unveils structured metadata embedded within HTML documents and web pages.
ShacShifter
Shapes Constraint Language (SHACL) to various other format.
prefix.cc
namespace lookup for RDF developers
rdf2rdf
Tool for converting between different RDF serialization formats.
Web-Client
Generic Linked Data browser and UX component framework.
CEDAR Workbench
Center for Expanded Data Annotation and Retrieval offers full life cycle management for semantically linked metadata
n3pygments
Pygments lexer to perform syntax highlighting for N3, Turtle and SPARQL.
psps
Personal Structured Publishing Space.
Git2PROV
Unleash the potential of Git in the new W3C standard for provenance.
rdf3x_path
RDF3X with path queries.
specgen
Modified, extended and more generalized version of Danbri's SpecGen version 5.
keygenapp
Utilities and WebApp for certificate creation within a browser, for FOAF+SSL.
LD-FusionTool
Data Fusion & Conflict Resolution tool for Linked Data.
prefix.cc
Source code to the prefix.cc website.
OnToology
A system for collaborative ontology development. Given a GitHub repository with an OWL file, OnToology will survey it and produce diagrams, a complete documentation and validation based on common pitfalls.
OBA
Automatically create OpenAPI specifications from OWL and launch a server that serves JSON objects according to your ontology.
MEL
(Metadata Extractor & Loader) - A tool to extract metadata (and textual content) from various file formats, as JSON objects.
pyLODE
A Python rdflib-based implementation of the LODE ontology documentation tool
UnSHACLed
A visual editor for RDF constraints currently supporting the visual notations ShapeUML and ShapeVOWL and import/export/validation of SHACL constraints.
rpt
Command line interface based RDF Processing Toolkit to run sequences of SPARQL statements ad-hoc on RDF datasets with a lot of features
RDF Playground
Browser based aggregation of multiple semantic web tools, includes syntax validation, visualization, reasoner and shacl validation
KGPrune
An API and Web application for extracting subgraphs of interest from Wikidata based on user-input seed entities, to bootstrap new KGs or support knowledge extraction, or knowledge mining approaches
In 2 lists
Semantic Web LSP
A language server for Semantic Web files, featuring SHACL shapes diagnostics, Turtle formatting, hover hints and descriptions, and completions for prefixes, properties, and classes.
rdfless
A pager and pretty-printer for Turtle/TriG/N-triples and N-Quads written in Rust.
Qlue-ls
A powerfull SPARQL language server and formatter. Providing: auto-completion, hover-info, formatting, code-actions, diagnostics and more.
Teamboard
Browser-based powerful and intuitive tool for creating and managing visual diagrams.
rdf-label-cache
Globally distributed, edge-cached HTTP service that resolves human-readable labels for RDF IRIs (Cloudflare Worker + R2); ships a maintained public seed for RDF, RDFS, OWL, SKOS, DCTERMS, DCAT, and Schema.org.
Integrations
anthelion
A plugin for Apache Nutch to crawl semantic annotations within HTML pages.
In 2 lists
SolRDF
An RDF plugin for Solr.
sesame-spring
Spring integration for OpenRDF/Sesame.
HydraBundle
Symfony2 bundle which shows how easily Hydra can be integrated in modern Web frameworks.
SARQ
Free Text Indexing for SPARQL using a remote Solr server.
EARQ
EARQ is a combination of ARQ and ElasticSearch.
sesametools
A collection of utilities for use with OpenRDF Sesame.
Imperium
Imperium is a plugin for the Play! framework similar to the existing JPA plugin that allows the use of Empire seamlessly in a Play! based application.
jekyll-rdf
A Jekyll plugin for including RDF data in your static site.
RightField
RightField is an open-source tool for adding ontology term selection to Excel spreadsheets.
mu-semtech
An Ecosystem of User-facing Microservices supported by Semantic Models.
Machine Learning
LinkedPipes-ETL
Linked Data ETL pipeline.
gm-sparql
Graph Mining Using SPARQL.
SANSA
(OS).
tdbloader4
Prototype to show how TDB indexes can be generated using MapReduce.
jena-grande
Jena Grande is a collection of utilities, experiments and examples on how to use MapReduce, Pig, HBase or Giraph to process data in RDF format.
mrlin
MapReduce processing of Linked Data.
infovore
RDF-Centric Map/Reduce Framework and Freebase data conversion tool.
In 2 lists
FOX
Federated Knowledge Extraction Framework.
Duke
Duke is a fast and flexible deduplication engine written in Java.
ODCS
The tool uses data processing pipelines for obtaining, processing, and storing RDF data.
etalis
Event Processing SPARQL (EP-SPARQL).
graph-pattern-learner
Evolutionary Graph Pattern Learner that learns SPARQL queries for a given set of source-target-pairs from an endpoint.
OntoGPT
Tools for populating semantic schemas from unstructured text using Large Language Models (LLMs)
In 2 lists
SPARQLLM
SPARQL queries that can access Search Engines, Large Language Models, or Vector databases. Access external data sources during SPARQL query execution.
Linked Data
sieve
Linked Data Quality Assessment and Fusion.
CSVW
RDF::Tabular
Ruby gem to parse CSV or other Tabular Data into RDF and JSON
csvlint
Ruby gem to validate CSV files to check their syntax and contents
csv2rdf (clojure)
Clojure library and application for converting CSV to RDF
csv2rdf (ruby)
Ruby gem to convert CSV to RDF
csv2json
Ruby gem to convert CSV to JSON
COW
CSV On the Web (CSVW) converter.
csvw-parser
Python package to parse CSVW
csvwr
Read and write CSVW tables and metadata in R
rcsvw
R package that implements the candidate recommendations from the W3C CSV on the Web Working Group
table2qb
A generic pipeline for converting tabular data into rdf data cubes using csvw
WebID
SHACL Implementations
See
and https://github.com/w3c/shacl/issues/78 for a more extensive list.
TopQuadrant/shacl
SHACL API in Java based on Apache Jena.
RDFUnit
RDF Unit testing and validation framework.
pySHACL
A Python validator for SHACL.
shperone
Form Builder
Schímatos
A SHACL-based Web-Form Generator for Knowledge Graph Editing.
SHACL Playground
A web based SHACL validator
SKOS Tools
iQvoc
SKOS(-XL) Vocabulary Management System for the Semantic Web.
Poolparty
($)
skosprovider
Skosprovider provides an interface that can be included in an application to allow it to talk to different SKOS vocabularies.
skosshuttle
($)
askos
A SKOS browser and editor.
VocPrez
A Linked Data API for SKOS data presentation
NLP
fred
a machine reader for the Semantic Web
NIF
NLP Interchange Format
Lemon
The Lexicon Model for Ontologies
PreMOn
Predicate Model for Ontologies (PreMOn) - VerbNet ontology module
BabelNet
Both a multilingual encyclopedic dictionary, with lexicographic and encyclopedic coverage of terms, and a semantic network which connects concepts and named entities in a very large network of semantic relations, made up of about 16 million entries, called Babel synsets. Each Babel synset…
In 2 lists
MEL
(Metadata Extractor & Loader) - A tool to extract metadata (and textual content) from various file formats, as JSON objects.
LoRiS
generated natural-language representations of SPARQL queries over Wikidata and DBpedia.
IIIF
Other Awesome
awesome-prolog
Prolog logic programming language
In 2 lists
awesome-ontology
Similar to this list
LSD-Dimensions
All dimension values of Linked Statistical Data.
prissma
Context-Aware Adaptation for Linked Data.
fox-java
Java bindings for FOX - Federated Knowledge Extraction Framework.
fox-py
Python bindings for FOX - Federated Knowledge Extraction Framework.
fox-ui
Web UI for FoxPSL.
ORE
Ontology Repair and Enrichment.
signal-collect-torque
Support for Signal/Collect Torque deployment.
redland-bindings
Redland librdf language bindings.
mediation
Jena based framework to implement ontological mediation of SPARQL queries.
SemanticPingback
This small vocabulary defines resources which are used in the context of Semantic Pingback.
json-ld-macros
Declarative transformation of JSON APIs into JSON-LD.
tac
Triple access control.
grefine-rdf-extension
An extension to Google Refine that enables graphical mapping of Google Refine project data to an RDF skeleton and then exporting it in RDF format.
LD-FusionTool
Data Fusion & Conflict Resolution tool for Linked Data.
xodx
An implementation of Semantic Pingback and PuSH for a DSSN.
morph-starter
this project is a simple Java (and Scala) demo of how to use morph.
sesametools
A collection of utilities for use with OpenRDF Sesame.
DEER
RDF Dataset Enrichment Framework.
levelgraph-jsonld
The Object Document Mapper for LevelGraph based on JSON-LD
OWL-API
The OWL API is a Java API for creating, manipulating and serialising OWL Ontologies.
ONT-API
a Jena based OWL-API implementation (Java library).
rdf-protege
a Protege Desktop fork with RDF support.
concurrent-rdf-graph
Concurrent RDF Graph implementations written in Kotlin.
LODGrefine
LOD-enabled Google Refine: linked open data related extensions included.
cp-openrdf-utils
Utility classes for working with the OpenRdf API.
linked-csv
A souped-up CSV-based data format.
balloon
A tool-suite for Linked Data consumption. balloon aims in offering public services and tools to take advantage of the semantic web with less effort. The basic motivation is to establish a foundation for Linked Data as a Service (LDaaS).
grlc
Web APIs from SPARQL queries.
basil
Building Apis SImpLy from sparql endpoints.
lodmill
Blend, grind, and enjoy LOD – fresh from the mill!
module-extractor
Java-based module extractor for OWL ontologies.
iRap
iRap - Interest-based RDF update propagation framework.
turtle-in-html
Bookmark to visualize RDF embedded in HTML as Turtle.
semargl
Highly performant, lightweight framework for linked data processing. Supports RDFa, JSON-LD, RDF/XML and plain text formats, runs on Android and GAE, provides integration with Jena, Sesame and Clerezza.
owlconvert
Simple OWL format converter based on OWLAPI.
rabel
Program for reading and writing linked data in various formats.
csvw-template
Document the semantics of your csv file.
jsonld-java
JSON-LD implementation for Java.
Luzzu
A scalable and extensible Linked Data quality assessment framework.
odmtp-tpf
Triple pattern matching over non-RDF datasources with inference .
motools
Music ontology tools
rdfsurveyor
Exploration tool for RDF datasets.
fenster
RDF quad-store frontend.
jsonld-streaming-parser.js
A fast and lightweight streaming JSON-LD parser for JavaScript.
sparql-ld
SPARQL-LD: A SPARQL Extension for Fetching and Querying Linked Data.
jena-sparql-api
A collection of Jena-extensions for hiding SPARQL-complexity from the application layer.
nichtich/wdg
Command line interface to Wikidata Query Service.
vocol
An integrated environment to support collaborative ontology / vocabulary development in distributed settings.
psps
Personal Structured Publishing Space.
CSO
The Computer Science Ontology (CSO) is a large-scale ontology of research areas that was automatically generated using the Klink-2 algorithm on the Rexplore dataset, which consists of about 16 million publications, mainly in the field of Computer Science.
metreeca
The model-driven linked data platform.
OLGA
OLGA (Ontology Library GenerAtor) is a generic tool aiming to accelerate the adoption of Standard W3C Semantic technology among developers.
Glimmer
An RDF Search Engine.
ontodia
Ontodia data diagraming library.
rdf.sh
A multi-tool shell script for doing Semantic Web jobs on the command line.
yarrrml-parser
A YARRRML parser library and CLI in Javascript.
amazon-neptune-tools
Tools and utilities to enable loading data and building graph applications with Amazon Neptune.
genealogical-trees
Semantic Web Exercise: Reasoning and Visualization of the Genealogical Ontologies.
LodLive
browse the web of data - a SPARQL navigator http://lodlive.it
fbrs
Facebook RDF Sync
ostrich
(OS) bird Versioned RDF triple store (Offset-enabled TRIple store for CHangesets).
ontmalizer
Comprehensive transformations of XML Schemas (XSD) and XML data to RDF/OWL automatically.
NSpM
robot Neural SPARQL Machines translate natural language into SPARQL queries.
ML-Schema/core
CORE ontology of ML-Schema schema. It's the mapping to others machine learning vocabularies and ontologies (DMOP, Expose, OntoDM and MEX)
rocker
key A Refinement Operator Approach for Key Discovery. http://aksw.org/projects/Rocker
Mandolin
sparkle Markov Logic Networks for the Discovery of Links
docker2rdf
Mapper to represent Dockerfiles as RDF triples
vsb
Visual SPARQL Builder - Model SPARQL-Select-Queries in a browser https://leipert.github.io/vsb/
sparti
SPARTI - RDF Semantic Partitioning.
carml-cli
Interface for CARML library.
OME
Online Mapping Editor.
Linked-Data-Studio
The Linked Data Studio is an extension to the Linked Data Theatre for the creation of Linked Data.
canonical_rdf
Proof-of-concept implementation of Aidan Hogan's RDF canonicalization algorithm in node.js.
Linked-Data-Theatre
The Linked Data Theatre is a platform for an optimal presentation of Linked Data.
sepa
A JAVA implementation of the SPARQL Event Processing Architecture including the engine, APIs and tools.
GLEEN
Regular Paths for ARQ SparQL.
psparql
PSPARQL (for Path SPARQL) is a query language for RDF.
rdf2h
Render resources described in RDF using logicless templates.
Beast
Benchmarking, Evaluation, and Analysis Stack - A powerful yet lightweight Java8/Jena-based RDF processing stack.
profilechecker
OWL API profile checker.
spdx
Software Package Data Exchange® (SPDX®) is an open standard for communicating software bill of material information (including components, licenses, copyrights, and security references).
sparql-to-csv
Stream SPARQL results to CSV .
knowledgecubes
Efficient RDF Data Management over Spark.
premon
PREdicate Model for ONtologies
eso-and-ceo
Event and Implied Situation Ontology (ESO) and the Circumstantial Event Ontology for Calamities (CEO).
pikes
Pikes is a Knowledge Extraction Suite
rdfpro
an extensible tool for building stream-oriented RDF processing pipelines.
umls2rdf
These python scripts connect to the Unified Medical Language System (UMLS) database and translate the ontologies into RDF/OWL files. This is part of the BioPortal project.
ROBOT
command line swiss-army knife for ontology developers
solr-ontology-tagger
Automatic tagging and analysis of documents in an Apache Solr index for faceted search by RDF(S) Ontologies & SKOS thesauri.
kbpedia
KBPedia Knowledge Graph & Knowledge Ontology (KKO).
dione
Khoaos Research Group
TrOWL
Tractable OWL 2 Reasoning Infrastructure
Linked Data Reactor (LD-R)
A full-stack platform for building adaptive component-based Linked Data applications in NodeJS and React.
rdf4a
RDF4J for Android.
wsml2reasoner
a highly modular framework that combines various validation, normalization and transformation algorithms that enable the translation of ontology descriptions in WSML to the appropriate syntax of several underlying reasoning engines.
silk
Semantic Inferencing on Large Knowledge (SILK) knowledge representation system.
Rule-Translator
This is framework is a Web rule translator. It has a rule parser, visualizer and translator. The Web rule languages that are covered by this framework include: Notation3 (N3), POSL, Datalog RuleML, SWRL and RIF. This framework is a rule engine for RIF language as well.
SWRLRulesToOWLAxioms
Implementation of a procedure to transform SWRL rules into equivalent OWL axioms.
SWRL.js
A SWRL parser for Javascript.
basex-rdf
RDF parsing for BaseX.
forgefed
An extension to ActivityPub for web-based Git services federation.
In 2 lists
comunica
A modular framework for querying Linked Data on the Web.
semwiki
An experimental semantic wiki with bidirectional (text <-> triples) changes.
datastudio-sparql-connector
SPARQL Connector for Google Data Studio.
MOD-Ontology
Metadata for Ontology Description and Publication Ontology .
StaTIX
Statistical Type Inference (both fully automatic and semi supervised) for RDF datasets.
vss-ontology
Design of the Vehicle Signal Ontology VSSo and example of use with SOSA/SSN and STEP.
aurl
LaTeX package for hyperlinked URLs abbreviated with prefixes. The 1000 most common prefixes are predefined and more can be added.
RDF Stream Taxonomy (RDF-STaX)
a systematization of RDF stream types. It also includes a small ontology to help with describing RDF streams.
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