ABECTO
type: Software
description: software for the comparison and evaluation of ontologies and knowledge graphs
has license: Apache Software License 2.0
latest version: 3.1.5
release date: 2026-01-03
title: ABECTO
wikidata id: Q126660073

ASQC
type: Software
description: SPARQL query client (pronounced \
has license: proprietary license
title: ASQC
wikidata id: Q124653432

AWS Neptune
type: Software
description: AWS Graph Database
has license: proprietary license
title: AWS Neptune
wikidata id: Q124653384

Akutan
type: Software
description: distributed knowledge graph store
has license: Apache Software License 2.0
title: Akutan
wikidata id: Q124653365

AllegroGraph
type: Software
description: horizontally distributed, multi-model (document and graph), entity-event knowledge graph database system
has license: proprietary license
homepage: http://www.franz.com/agraph/allegrograph
title: AllegroGraph
wikidata id: Q4731408

AnzoGraph
type: Software
has license: proprietary license
title: AnzoGraph
wikidata id: Q124653370

Apache Rya
type: Software
description: Mirror of Apache Rya
has license: Apache Software License 2.0
homepage: https://rya.apache.org/
latest version: 4.0.0
release date: 2019-07-27
title: Apache Rya
wikidata id: Q28915769

AtomicServer
type: Software
description: open source headless CMS / real-time database. Powerful table editor, full-text search, and SDKs for JS / React / Svelte
has license: MIT License
homepage: https://atomicserver.eu/
latest version: 0.40.0
release date: 2024-10-07
title: AtomicServer
wikidata id: Q124653388

AutoSparql
type: Software
description: Warning: Not working at the moment
has license: GNU General Public License, version 3.0
homepage: https://aksw.org/Projects/AutoSPARQL.html
title: AutoSparql
wikidata id: Q124653433

Blazegraph
type: Software
description: Blazegraph High Performance Graph Database
has license: GNU General Public License, version 2.0
has license: proprietary license
homepage: https://blazegraph.com/
latest version: 2.1.5
release date: 2019-03-19
title: Blazegraph
wikidata id: Q20127748

CEL
type: Software
description: semantic reasoner
has license: Apache Software License 2.0
has license: GNU Lesser General Public License, version 3.0 or later
homepage: https://julianmendez.github.io/cel/
latest version: 0.6.0
release date: 2017-07-01
title: CEL
wikidata id: Q59506010

CM-Well
type: Software
description: CM-Well - a data warehouse for your knowledge graph
has license: Apache Software License 2.0
latest version: 1.5.170
release date: 2020-03-24
title: CM-Well
wikidata id: Q124653368

CQELS
type: Software
description: fork of CQELS (Continuous Query Evaluation over Linked Data)
has license: GNU Lesser General Public License, version 3.0
homepage: https://code.google.com/archive/p/cqels
title: CQELS
wikidata id: Q124653398

Chainsaw
type: Software
description: semantic reasoner
title: Chainsaw
wikidata id: Q62592818

Chowlk
type: Software
description: Tool to transform an ontology diagram into OWL code.
has license: Apache Software License 2.0
latest version: 0.0.1
release date: 2020-12-09
title: Chowlk
wikidata id: Q124653413

Corese
type: Software
description: Software platform implementing and extending the standards of the Semantic Web.
has license: CeCILL-C
has license: proprietary license
homepage: https://project.inria.fr/corese/
latest version: 4.5.0
release date: 2023-12-14
title: Corese
wikidata id: Q124653392

CostFed
type: Software
description: Cost-Based Query Optimization for SPARQL Endpoint Federation
has license: GNU Affero General Public License, version 3.0
has license: GNU Affero General Public License, version 3.0 or later
title: CostFed
wikidata id: Q124653410

CubicWeb
type: Software
description: semantic web framework
has license: GNU Lesser General Public License, version 2.1
homepage: https://www.cubicweb.org/
latest version: 4.8.0
release date: 2024-05-21
title: CubicWeb
wikidata id: Q2839592

CumulusRDF
type: Software
description: RDF store on a cloud-based architecture (previously on https://code.google.com/p/cumulusrdf)
has license: Apache Software License 2.0
title: CumulusRDF
wikidata id: Q124653371

DBPedia Archivo
type: Software
description: DBpedia Archivo - Augmented Ontology Archive powered by Databus
has license: GNU Affero General Public License, version 3.0
has license: GNU Affero General Public License, version 3.0 or later
homepage: https://archivo.dbpedia.org/list
title: DBPedia Archivo
wikidata id: Q124653414

Dydra
type: Software
has license: proprietary license
title: Dydra
wikidata id: Q124653381

ELK
type: Software
description: semantic reasoner
has license: Apache Software License 2.0
homepage: http://elk.semanticweb.org/
latest version: 0.6.0
release date: 2024-05-25
title: ELK
wikidata id: Q59505721

EMMOntoPy
type: Software
description: Library for representing and working with ontologies in Python
has license: 3-clause BSD License
homepage: https://emmo-repo.github.io/EMMOntoPy/
latest version: 0.10.1
release date: 2025-11-21
title: EMMOntoPy
wikidata id: Q124653415

Excel 2 RDF
type: Software
description: Excel-to-RDF converter. It can generate RDF files from Excel spreadsheets structured in a specific way, and contains specific features for SKOS
has license: GNU Lesser General Public License, version 3.0
homepage: https://xls2rdf.sparna.fr/rest/
latest version: 3.2.0
release date: 2024-12-30
title: Excel 2 RDF
wikidata id: Q132649587

FOOPS!
type: Software
description: Code for FOOPS! the OEG FAIR ontologies validator
has license: Apache Software License 2.0
homepage: https://foops.linkeddata.es/FAIR_validator.html
latest version: 0.3.0
release date: 2025-08-07
title: FOOPS!
wikidata id: Q124653416

FS2KG
type: Software
description: FS2KG: File System to Knowledge Graph
has license: proprietary license
title: FS2KG
wikidata id: Q124653407

F-UJI
type: Software
description: FAIRsFAIR Research Data Object Assessment Service
has license: MIT License
homepage: https://www.f-uji.net/
latest version: 3.5.1
release date: 2025-10-14
title: F-UJI
wikidata id: Q123267667

FaCT++
type: Software
description: semantic reasoner
has license: GNU General Public License, version 2.0
has license: GNU Library General Public License, version 2.0 or later
has license: proprietary license
homepage: http://owl.cs.manchester.ac.uk/tools/fact/
latest version: 1.6.5
release date: 2016-12-31
title: FaCT++
wikidata id: Q59394243

Flora-2
type: Software
description: open source semantic rule-based system for knowledge representation and reasoning
homepage: http://flora.sourceforge.net/
title: Flora-2
wikidata id: Q17090028

Fluent-Sparql
type: Software
description: Fluent query API for SPARQL based on the Jena framework
has license: 3-clause BSD License
title: Fluent-Sparql
wikidata id: Q124653436

ForestQB
type: Software
has license: proprietary license
title: ForestQB
wikidata id: Q124653404

Foundation
type: Software
description: Data, and its history, via change requests
has license: GNU Affero General Public License, version 3.0
has license: GNU Affero General Public License, version 3.0 or later
latest version: 0.2.0
release date: 2020-03-04
title: Foundation
wikidata id: Q124653389

GH-RDF3X
type: Software
description: Extension of the rdf3x engine and the translatesparql tool
has license: proprietary license
title: GH-RDF3X
wikidata id: Q124653393

GRUFF
type: Software
description: Commercial graph database
has license: proprietary license
title: GRUFF
wikidata id: Q124653417

Graphameleon Web extension
type: Software
description: Web extension that captures Web navigation traces and transforms them into a RDF graph for further exploration
has license: 4-clause BSD License
homepage: https://github.com/Orange-OpenSource/graphameleon
latest version: 2.1.0
title: Graphameleon Web extension
wikidata id: Q126909517

Halyard
type: Software
description: Halyard is an extremely horizontally scalable Triplestore with support for Named Graphs, designed for integration of extremely large Semantic Data Models, and for storage and SPARQL 1.1 querying of the whole Linked Data universe snapshots.
has license: Apache Software License 2.0
homepage: https://merck.github.io/Halyard/
title: Halyard
wikidata id: Q124653366

HeFQUIN
type: Software
description: HeFQUIN is a query federation engine for heterogeneous federations of graph data sources, including federations of knowledge graphs.
has license: Apache Software License 2.0
homepage: https://liusemweb.github.io/HeFQUIN/
latest version: 0.0.2
release date: 2023-12-28
title: HeFQUIN
wikidata id: Q124653408

HermiT
type: Software
description: Semantic reasoner, usable as cli, api, or plugin
has license: GNU Lesser General Public License, version 3.0 or later
has license: proprietary license
homepage: http://www.hermit-reasoner.com
latest version: 1.3.8
title: HermiT
wikidata id: Q59434483

Hets
type: Software
description: The Heterogeneous Tool Set
has license: GNU General Public License, version 2.0
homepage: http://hets.eu/
latest version: 0.105
release date: 2020-12-14
title: Hets
wikidata id: Q124653418

ImageSnippets
type: Software
description: ImageSnippets is a fully operational web application for creating precise image descriptions/annotations using linked data
has license: proprietary license
title: ImageSnippets
wikidata id: Q125506367

Imagesnippets
type: Software
has license: proprietary license
title: Imagesnippets
wikidata id: Q125506321

JDBC 4 SPARQL
type: Software
description: JDBC driver that takes data from SPARQL endpoints or RDF graphs
has license: proprietary license
title: JDBC 4 SPARQL
wikidata id: Q124653437

Katts
type: Software
description: Katts is A Triple Torrent Sieve
has license: Apache Software License 2.0
title: Katts
wikidata id: Q124653397

Kineo
type: Software
description: persistent RDF quadstore and SPARQL engine
has license: MIT License
latest version: 0.0.108
release date: 2024-11-17
title: Kineo
wikidata id: Q124653385

LUPOSDATE
type: Software
description: Semantic Web database
has license: proprietary license
title: LUPOSDATE
wikidata id: Q124653373

Levelgraph
type: Software
description: Graph database JS style for Node.js and the Browser. Built upon LevelUp and LevelDB.
has license: MIT License
latest version: 4.0.0
release date: 2024-04-24
title: Levelgraph
wikidata id: Q124653376

LinkML
type: Software
description: flexible modeling framework that allow for working with semantic web standards alongside a modern data stack
has license: Apache Software License 2.0
homepage: https://linkml.io/
latest version: 1.9.6
release date: 2025-12-01
title: LinkML
wikidata id: Q108911530

LinkedDataHub
type: Software
description: The low-code Knowledge Graph application platform. Apache license.
has license: Apache Software License 2.0
homepage: https://atomgraph.github.io/LinkedDataHub/
latest version: 5.1.0
release date: 2025-12-12
title: LinkedDataHub
wikidata id: Q124653439

LinkedPipes ETL
type: Software
description: LinkedPipes ETL is an RDF based, lightweight ETL tool
has license: MIT License
homepage: https://etl.linkedpipes.com
part of: LinkedPipes
title: LinkedPipes ETL
wikidata id: Q125945818

Linked Open Vocabularies
type: Software
description: dataset of ontologies
has license: proprietary license
homepage: https://lov.linkeddata.es/dataset/lov
title: Linked Open Vocabularies
wikidata id: Q39392701

LogMap
type: Software
description: LogMap: An Ontology Alignment and Alignment Repair System
has license: Apache Software License 2.0
title: LogMap
wikidata id: Q125491100

Morph
type: Software
description: rdb2rdf tool using r2rml mappings
has license: proprietary license
latest version: 1.0.6
release date: 2013-11-04
title: Morph
wikidata id: Q124841496

Morph-Streams
type: Software
description: sparql-stream sensor queries
has license: proprietary license
title: Morph-Streams
wikidata id: Q124653396

Mulgara
type: Software
description: RDF TripleStore in Java
has license: Open Software License
has license: Q114843172
homepage: http://mulgara.org/
title: Mulgara
wikidata id: Q6933960

NEOntometrics
type: Software
description: Calculate (evolutional) ontology metrics using a GUI or API
has license: MIT License
homepage: http://neontometrics.informatik.uni-rostock.de
latest version: 1.0.0
release date: 2022-08-12
title: NEOntometrics
wikidata id: Q124653457

NitrosBase
type: Software
description: Russian high-performance multi-model database system
has license: proprietary license
homepage: http://nitrosbase.com
latest version: 2.0
release date: 2018-12-03
title: NitrosBase
wikidata id: Q56296429

Node Quadstore
type: Software
description: LevelDB-backed graph database engine for Node.js and the browser supporting SPARQL queries and the RDF/JS interface
has license: MIT License
homepage: https://beautifulinteractions.github.io/node-quadstore
latest version: 3.0.0
release date: 2017-10-19
title: Node Quadstore
wikidata id: Q124653372

O’FAIRE
type: Software
description: This project is a FAIRness assessment tool for ontologies, vocabularies and semantic resources.
has license: MIT License
homepage: https://services.stageportal.lirmm.fr/fairness/v2/
latest version: 2.2.0
release date: 2024-06-02
title: O’FAIRE
wikidata id: Q124653420

OOPS
type: Software
description: Ontology Pitfall Scanner
has license: proprietary license
title: OOPS
wikidata id: Q124842267

OWBO - Ontology White Board
type: Software
description: Ontology White Board
has license: MIT License
title: OWBO - Ontology White Board
wikidata id: Q124653425

OWL2Vec*
type: Software
description: Embedding OWL ontologies
has license: Apache Software License 2.0
latest version: 0.2.1
release date: 2022-01-03
title: OWL2Vec*
wikidata id: Q125491116

OWLAPI
type: Software
description: OWL API main repository
has license: Affero General Public License
has license: Apache Software License 2.0
has license: proprietary license
title: OWLAPI
wikidata id: Q116908509

OnToology
type: Software
description: Online tool to automatically generate documentation and evaluation for Ontologies hosted on GitHub
has license: Apache Software License 2.0
homepage: http://ontoology.linkeddata.es/
latest version: 1.7.0
release date: 2021-06-21
title: OnToology
wikidata id: Q124653423

OntOlogy Pitfall Scanner!
type: Software
description: on-line tool for ontology evaluation
has license: proprietary license
homepage: https://oops.linkeddata.es/
title: OntOlogy Pitfall Scanner!
wikidata id: Q124758427

OntoSpy
type: Software
description: Python library and command-line interface for inspecting and visualizing RDF models aka ontologies.
has license: MIT License
homepage: http://lambdamusic.github.io/Ontospy/
latest version: 2.1.1
release date: 2022-11-16
title: OntoSpy
wikidata id: Q124653424

OntoUML Plugin for Visual Paradigm
type: Software
description: Menthor Editor
has license: proprietary license
latest version: 1.1.9
release date: 2019-02-14
title: OntoUML Plugin for Visual Paradigm
wikidata id: Q124653419

Ontofox
type: Software
description: Extract ontology terms and axioms: http://ontofox.hegroup.org
has license: proprietary license
homepage: https://ontofox.hegroup.org/
title: Ontofox
wikidata id: Q124653421

OntopSpark
type: Software
description: OntopSpark is an Ontop's extension which supports Apache Spark as query processing engine. The Ontop platform allows to query relational databases as Virtual RDF Knowledge Graphs using SPARQL.
has license: Apache Software License 2.0
homepage: https://ontop-vkg.org/
latest version: 4.1.0
release date: 2021-08-25
title: OntopSpark
wikidata id: Q125490971

Ontotext GraphDB
type: Software
description: A highly efficient and robust graph database system with RDF and SPARQL support
has license: proprietary license
homepage: http://graphdb.ontotext.com
latest version: 11.0.0
release date: 2025-04-14
title: Ontotext GraphDB
wikidata id: Q58425577

Openllet
type: Software
description: semantic reasoner
has license: GNU Affero General Public License, version 3.0
latest version: 2.6.5
release date: 2019-09-27
title: Openllet
wikidata id: Q59394117

Ostrich
type: Software
description: 🐦 Versioned RDF triple store (OffSet-enabled TRIple store for CHangesets)
has license: proprietary license
latest version: 1.0.0
release date: 2017-09-01
title: Ostrich
wikidata id: Q124653378

Owlready2
type: Software
description: Owlready2 is a package for ontology-oriented programming in Python
has license: proprietary license
homepage: https://bitbucket.org/jibalamy/owlready2
title: Owlready2
wikidata id: Q116924857

Oxigraph
type: Software
description: SPARQL graph database system
has license: Apache Software License 2.0
has license: MIT License
latest version: 0.5.2
release date: 2025-10-25
title: Oxigraph
wikidata id: Q118980507

Parliament
type: Software
description: Standards-compliant triple store for RDF, OWL, and SPARQL
has license: 3-clause BSD License
latest version: 2.8.1
release date: 2022-06-09
title: Parliament
wikidata id: Q124653369

Pellet
type: Software
description: Pellet is an OWL 2 reasoner in Java; open source (AGPL) and commercially licensed, commercial support available.
has license: GNU Affero General Public License, version 3.0
has license: proprietary license
latest version: 2.3.1
release date: 2013-05-07
title: Pellet
wikidata id: Q9371786

Processor
type: Software
description: Ontology-driven Linked Data processor and server for SPARQL backends. Apache License.
has license: Apache Software License 2.0
homepage: https://hub.docker.com/r/atomgraph/processor/
latest version: 4.1.1
release date: 2023-07-10
title: Processor
wikidata id: Q124653440

Protégé
type: Software
description: Ontology editor
has license: 2-clause BSD License
homepage: https://protege.stanford.edu
latest version: 5.6.8
release date: 2025-09-03
title: Protégé
wikidata id: Q2066865

Pubby
type: Software
description: Linked Data frontend for SPARQL endpoints
has license: Apache Software License 2.0
homepage: http://www4.wiwiss.fu-berlin.de/pubby/
latest version: 0.3.3
release date: 2011-01-26
title: Pubby
wikidata id: Q124653441

QLever
type: Software
description: SPARQL engine
has license: Apache Software License 2.0
homepage: https://qlever.dev/
title: QLever
wikidata id: Q111016295

QuitStore
type: Software
description: 🖧 Quads in Git - Distributed Version Control for RDF Knowledge Bases
has license: GNU General Public License, version 3.0
homepage: https://aksw.org/Projects/Quit
latest version: 0.26.0
release date: 2022-02-02
title: QuitStore
wikidata id: Q124653379

R2RML-F
type: Software
description: open-source R2RML processor
has license: MIT License
homepage: https://github.com/chrdebru/r2rml
title: R2RML-F
wikidata id: Q125306921

RACER
type: Software
description: semantic reasoner
has license: 3-clause BSD License
latest version: 2.0
release date: 2014-05-29
title: RACER
wikidata id: Q59505496

RDF4J
type: Software
description: Eclipse RDF4J: scalable RDF for Java
has license: Eclipse Distribution License
has license: 3-clause BSD License
homepage: http://rdf4j.org/
latest version: 5.2.1
release date: 2025-12-05
title: RDF4J
wikidata id: Q7455975

RDFLib
type: Software
description: RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information.
has license: BSD licenses
has license: 3-clause BSD License
homepage: https://rdflib.dev
latest version: 7.5.0
release date: 2025-11-28
title: RDFLib
wikidata id: Q7276224

RDF Playground
type: Software
description: web interface for Linked Data courses, tailored for CC7220 \
has license: Apache Software License 2.0
latest version: 1.0
release date: 2020-10-27
title: RDF Playground
wikidata id: Q124653458

RDFox
type: Software
description: computer program for databasing RDF
has license: proprietary license
homepage: https://www.oxfordsemantic.tech/
title: RDFox
wikidata id: Q105745603

RIQ
type: Software
description: RIQ is a new software tool for fast processing of SPARQL queries on RDF quadruples. (Funding source: National Science Foundation Grant Nos. 1115871 and 1620023)
has license: proprietary license
title: RIQ
wikidata id: Q124653394

ROBOT is an OBO Tool
type: Software
description: high-level tool for working with OBO ontologies
has license: 3-clause BSD License
homepage: https://robot.obolibrary.org/
latest version: 1.9.8
release date: 2025-05-15
title: ROBOT is an OBO Tool
wikidata id: Q116908518

RSP4J
type: Software
description: RSP4J a library for RDF Stream Processing
has license: Apache Software License 2.0
latest version: 1.1.7
release date: 2022-10-18
title: RSP4J
wikidata id: Q125491046

Radar Station
type: Software
description: Radar Station: Using Knowledge Graph Embeddings for Semantic Table Interpretation (row, column, and relationships between columns annotations) and Entity Disambiguation
has license: proprietary license
title: Radar Station
wikidata id: Q126363886

Reactive-Sparql
type: Software
description: Reactive Sparql Client written in Scala and Akka
has license: MIT License
latest version: 0.3.1
release date: 2019-09-22
title: Reactive-Sparql
wikidata id: Q124653442

Reactodia
type: Software
description: JavaScript library for visual interaction with graph data in a form of a diagram
has license: GNU Lesser General Public License, version 2.1 or later
homepage: https://reactodia.github.io
latest version: 0.31.2
release date: 2025-11-27
title: Reactodia
wikidata id: Q131278990

RedStore
type: Software
description: RedStore is a lightweight RDF triplestore written in C using the Redland library.
has license: GNU General Public License, version 3.0
homepage: https://www.aelius.com/njh/redstore/
latest version: 0.5.4
release date: 2011-10-27
title: RedStore
wikidata id: Q124653383

4store
type: Software
description: 4store is an efficient, scalable and stable RDF database.
has license: GNU General Public License, version 3.0
homepage: https://4store.github.io
latest version: 1.1.7
release date: 2024-05-10
title: 4store
wikidata id: Q29981675

SANSA
type: Software
description: big data RDF processing and analytics stack built on Apache Spark and Apache Jena
has license: Apache Software License 2.0
homepage: http://sansa-stack.net/
latest version: 2.11
release date: 2021-06-10
title: SANSA
wikidata id: Q59422377

SEPA
type: Software
description: Get notifications about changes in your SPARQL endpoint.
has license: proprietary license
latest version: 0.15.2
release date: 2024-12-06
title: SEPA
wikidata id: Q124653399

SHACL Play!
type: Software
description: Free online SHACL tool suite : RDF data validation, documentation generation, and more.
has license: GNU Lesser General Public License, version 3.0
homepage: https://shacl-play.sparna.fr/play/
latest version: 0.11.2
release date: 2025-09-14
title: SHACL Play!
wikidata id: Q132649561

SHACTOR
type: Software
description: SHACTOR: Improving the Quality of Large-Scale Knowledge Graphs with Validating Shapes
has license: Creative Commons Attribution-NonCommercial-NoDerivatives
has license: proprietary license
homepage: https://relweb.cs.aau.dk/qse/shactor/
title: SHACTOR
wikidata id: Q125491024

SKOS Play!
type: Software
description: SKOS Play! is a free application to render and visualise thesaurus, taxonomies or controlled vocabularies expressed in SKOS. SKOS Play! also provides a way to convert Excel spreadsheets to SKOS files.
has license: GNU Lesser General Public License, version 3.0
homepage: https://skos-play.sparna.fr/play/
latest version: 0.9.1
release date: 2022-03-18
title: SKOS Play!
wikidata id: Q132649592

SMASSIF-RML
type: Software
description: Semantic Web stream processing solution with declarative data mapping capability based on a modified version of the RMLMapper-java tool and extensions to the StreamingMASSIF framework
has license: 4-clause BSD License
homepage: https://github.com/Orange-OpenSource/SMASSIF-RML
latest version: 0.1.0
release date: 2023-03-17
title: SMASSIF-RML
wikidata id: Q126361403

SNORQL
type: Software
description: a ajaxy front-end for exploring triple stores
has license: Apache Software License 2.0
title: SNORQL
wikidata id: Q124653430

SPARQL2Git
type: Software
description: Easily store and curate SPARQL queries (and their associated Linked Data APIs) in GitHub
has license: proprietary license
homepage: https://www.albertmeronyo.org/wp-content/uploads/2017/04/sparql2git-transparent-sparql-4.pdf
title: SPARQL2Git
wikidata id: Q124467775

SPARQL2NL
type: Software
description: converts SPARQL queries to natural language expressions
has license: proprietary license
title: SPARQL2NL
wikidata id: Q124653448

SPARQLBlocks
type: Software
description: Using Blockly library for building SPARQL queries with blocks.
has license: MIT License
title: SPARQLBlocks
wikidata id: Q124653450

SPARQLFederator
type: Software
description: Expand SPARQL queries to perform inference on multiple endpoints and relational databases.
has license: proprietary license
title: SPARQLFederator
wikidata id: Q124653412

SPARQLLab
type: Software
description: Lab for exercising SPARQL
has license: Eclipse Public License 1.0
title: SPARQLLab
wikidata id: Q124653428

SPARQL Anything
type: Software
description: SPARQL Anything is a system for Semantic Web re-engineering that allows users to ... query anything with SPARQL.
has license: Apache Software License 2.0
homepage: https://sparql-anything.cc/
latest version: 1.0.0
release date: 2025-06-04
title: SPARQL Anything
wikidata id: Q123150988

SPARQL parser
type: Software
has license: MIT License
title: SPARQL parser
wikidata id: Q124653447

Sampo-UI
type: Software
description: Sampo-UI is a framework for developing user interfaces for semantic portals to publish Linked Open Data.
has license: MIT License
homepage: https://seco.cs.aalto.fi/tools/sampo-ui/
title: Sampo-UI
wikidata id: Q122949732

Semagrow
type: Software
description: SPARQL query federator of heterogeneous data sources
has license: Apache Software License 2.0
homepage: https://semagrow.github.io/
latest version: 2.2.1
release date: 2021-10-08
title: Semagrow
wikidata id: Q124653409

Semantic UI
type: Software
description: XQuery and Java tools for working with semantic tuples stored in MarkLogic Server
has license: Expat license
has license: proprietary license
homepage: http://www.semantic-ui.com
latest version: 2.5.0
release date: 2022-10-06
title: Semantic UI
wikidata id: Q96276859

SenTag
type: Software
description: Tesi triennale Alberto Zerbinati, Simone Mosco. Relatore prof. Andrea Loreggia. @unipd
has license: MIT License
title: SenTag
wikidata id: Q124653406

Spanqit
type: Software
description: Java-based SPARQL query generator
has license: Apache Software License 2.0
latest version: 1.1
release date: 2017-12-07
title: Spanqit
wikidata id: Q124653444

Sparklis
type: Software
description: natural-language SPARQL query builder software
has license: Apache Software License 2.0
title: Sparklis
wikidata id: Q124653445

Sparnatural
type: Software
description: visual knowledge graph explorer with SPARQL, in the browser, configurable with SHACL
has license: GNU Lesser General Public License, version 3.0
homepage: https://sparnatural.eu/
latest version: 12.0.0
release date: 2025-09-23
title: Sparnatural
wikidata id: Q132649560

SparqlAnalytics
type: Software
description: Java based middleware/proxy framework for live analysis of SPARQL queries. Publish live SPARQL endpoint metrics using embeddable HTML/JavaScript widgets.
has license: proprietary license
title: SparqlAnalytics
wikidata id: Q124653449

SparqlExplorer
type: Software
description: Browse the content of a SPARQL endpoint using hypertext links and without writing queries.
has license: GNU Lesser General Public License
title: SparqlExplorer
wikidata id: Q125491065

Sparql-Proxy
type: Software
description: Simple SPARQL Endpoint Proxy Servlet
has license: Unlicense
title: Sparql-Proxy
wikidata id: Q124653454

Sparql Transformer
type: Software
description: more handy way to use SPARQL data in your web app
has license: Apache Software License 2.0
homepage: https://d2klab.github.io/sparql-transformer/
title: Sparql Transformer
wikidata id: Q124653427

Sparql-cli
type: Software
description: command line API for SPARQL
has license: GNU General Public License, version 3.0
title: Sparql-cli
wikidata id: Q124653451

Squebi
type: Software
description: Squebi provides an extendable SPARQL interface.
has license: Apache Software License 2.0
title: Squebi
wikidata id: Q124653455

Stardog
type: Software
description: Stardog is a commercial RDF database engine with support for SPARQL querying and OWL reasoning
has license: proprietary license
homepage: https://www.stardog.com
title: Stardog
wikidata id: Q91147741

Strabon
type: Software
description: semantic geospatial database system
has license: Mozilla Public License, version 2.0
homepage: https://strabon.di.uoa.gr/
title: Strabon
wikidata id: Q124653367

StreamingMassif
type: Software
description: Cascading Stream Reasoning with Streaming MASSIF
has license: proprietary license
title: StreamingMassif
wikidata id: Q124653400

Streaming Sparql
type: Software
description: Cross-server SPARQL query library with support for incremental, streaming result processing.
has license: Apache Software License 2.0
latest version: 0.0.7.3
release date: 2024-05-31
title: Streaming Sparql
wikidata id: Q124653402

Table Annotation
type: Software
description: TableAnnotation is a semantic annotation tool for tables leveraging three steps: table preprocessing, entity lookup and annotation (Cell-Entity Annotation, Column-Type Annotation, Column-Pair Annotation)
has license: GNU General Public License, version 3.0
title: Table Annotation
wikidata id: Q126363875

TopBraid Composer
type: Software
description: editor for ontologies, especially SHACL
has license: proprietary license
title: TopBraid Composer
wikidata id: Q124653426

Torchic Tab
type: Software
description: semantic table annotation tool that leverages Wikidata and language model architectures
has license: proprietary license
title: Torchic Tab
wikidata id: Q125490881

Triplewave
type: Software
description: TripleWave is a framework to publish RDF streams on the Web.
has license: Apache Software License 2.0
homepage: https://streamreasoning.org/TripleWave/
latest version: 2.1.1
release date: 2016-09-09
title: Triplewave
wikidata id: Q124653395

Triply
type: Software
description: Multimodel-Database
has license: proprietary license
title: Triply
wikidata id: Q124653387

VISU
type: Software
description: Visual SPARQL query tool
has license: MIT License
title: VISU
wikidata id: Q124653456

Vedas
type: Software
description: software
has license: proprietary license
title: Vedas
wikidata id: Q124653364

Virtuoso Universal Server
type: Software
description: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform
has license: GNU General Public License, version 2.0
has license: proprietary license
homepage: https://virtuoso.openlinksw.com/
latest version: 7.2.16.1
release date: 2025-10-15
title: Virtuoso Universal Server
wikidata id: Q7935239

VizBrick
type: Software
has license: proprietary license
title: VizBrick
wikidata id: Q124653405

Wallix Triplestore
type: Software
description: Nifty library to manage, query and store RDF triples. Make RDF great again!
has license: Apache Software License 2.0
title: Wallix Triplestore
wikidata id: Q124653375

Waves
type: Software
has license: proprietary license
title: Waves
wikidata id: Q124653401

WebVOWL
type: Software
description: web tool for visualizing ontologies
has license: MIT License
homepage: https://service.tib.eu/webvowl/
latest version: 1.1.6
release date: 2019-10-08
title: WebVOWL
wikidata id: Q56569953

Widoco
type: Software
description: Wizard for documenting ontologies. WIDOCO is a step by step generator of HTML templates with the documentation of your ontology. It uses the LODE environment to create part of the template.
has license: Apache Software License 2.0
homepage: https://dgarijo.github.io/Widoco/
latest version: 1.4.25
release date: 2024-06-30
title: Widoco
wikidata id: Q118564029

Yasgui
type: Software
description: Yet Another Sparql GUI
has license: MIT License
homepage: https://yasgui.triply.cc/
latest version: 4.0.113
release date: 2020-04-08
title: Yasgui
wikidata id: Q114893193

anapsid
type: Software
description: adaptive query processing engine for SPARQL endpoints
has license: proprietary license
homepage: https://anapsid.github.io/anapsid/
latest version: 3.0
release date: 2014-02-11
title: anapsid
wikidata id: Q124653411

cwm
type: Software
description: general-purpose data processing software for the Semantic Web
has license: W3C Software License
homepage: https://www.w3.org/2000/10/swap/doc/cwm
title: cwm
wikidata id: Q50745537

d3-sparql
type: Software
description: Query a SPARQL endpoint with a SELECT query and get the data ready to be used with d3js
has license: 3-clause BSD License
latest version: 2.0.0
release date: 2019-05-03
title: d3-sparql
wikidata id: Q124653431

d3sparql.js
type: Software
description: JavaScript library for executing SPARQL query and transforming resulted JSON for visualization in D3.js
has license: proprietary license
latest version: 0.0.0
release date: 2015-02-20
title: d3sparql.js
wikidata id: Q124653434

fabric
type: Software
description: triplestore software library written in Golang
has license: MIT License
title: fabric
wikidata id: Q81525074

fluree
type: Software
description: Fluree’s platform enables trusted, linked, and composable data
has license: proprietary license
title: fluree
wikidata id: Q124653386

gStore
type: Software
description: gStore - a graph based RDF triple store.
has license: 3-clause BSD License
homepage: https://www.gstore.cn/
title: gStore
wikidata id: Q124653377

jcel
type: Software
description: semantic reasoner
has license: Apache Software License 2.0
has license: GNU Lesser General Public License, version 3.0 or later
homepage: https://julianmendez.github.io/jcel/
latest version: 0.24.0
release date: 2016-07-09
title: jcel
wikidata id: Q59506229

json-rql
type: Software
description: JSON Resource Query Language, for simple, consistent query APIs
has license: MIT License
homepage: https://json-rql.org/
title: json-rql
wikidata id: Q124653438

librdf.sqlite
type: Software
has license: proprietary license
title: librdf.sqlite
wikidata id: Q124653382

metaphactory
type: Software
description: software platform for knowledge graphs
homepage: http://metaphactory.com/
title: metaphactory
wikidata id: Q23831237

onto-tool
type: Software
description: Tools to update and export ontology RDF.
has license: Apache Software License 2.0
latest version: 1.8.0
release date: 2023-10-17
title: onto-tool
wikidata id: Q124653422

ontop
type: Software
description: platform to query relational databases as Virtual RDF Knowledge Graphs using SPARQL
has license: Apache Software License 2.0
homepage: https://ontop-vkg.org
latest version: 5.3.1
release date: 2025-09-29
title: ontop
wikidata id: Q56861590

ontopstream
type: Software
description: OntopStream is a research protype extension of the popular Ontology-Based Data Access engine Ontop.
has license: Apache Software License 2.0
latest version: 4.0.3
release date: 2021-11-14
title: ontopstream
wikidata id: Q125490959

pyLoDStorage
type: Software
description: python List of Dict (Table) Storage library
has license: Apache License
latest version: 0.18.6
release date: 2025-12-03
title: pyLoDStorage
wikidata id: Q135466410

rdf2rml
type: Software
description: RDF by Example: rdfpuml for True RDF Diagrams, rdf2rml for R2RML Generation
has license: proprietary license
title: rdf2rml
wikidata id: Q124653363

rdf-ext
type: Software
description: RDF-Ext is a JavaScript library that extends the RDF/JS specs to handle RDF data in a developer-friendly way.
has license: MIT License
homepage: https://rdf-ext.org/
latest version: 2.6
release date: 2025-08-31
title: rdf-ext
wikidata id: Q137777350

rdf-sketch
type: Software
description: Sketch RDF in the web browser with immediate visualization
has license: MIT License
homepage: https://sketch.zazuko.com/
latest version: 1.0.4
release date: 2025-01-29
title: rdf-sketch
wikidata id: Q125506320

safe
type: Software
description: SAFE: SPARQL Federation over RDF DataCubes with Access Control
has license: GNU General Public License, version 2.0
has license: proprietary license
title: safe
wikidata id: Q114077329

snap-sparql-query
type: Software
description: API for parsing SPARQL queries
has license: GNU Lesser General Public License, version 3.0
title: snap-sparql-query
wikidata id: Q124653443

sparqled
type: Software
description: Assisted SPARQL Editor
has license: GNU Affero General Public License, version 3.0
has license: GNU Affero General Public License, version 3.0 or later
title: sparqled
wikidata id: Q124653452

sparqlprog
type: Software
description: logic programming with SPARQL
has license: proprietary license
homepage: https://www.swi-prolog.org/pack/list
latest version: 0.2.9
release date: 2019-09-05
title: sparqlprog
wikidata id: Q124653453

ssb-consum-up
type: Software
description: A "Kafka to SPARQL gateway" standalone piece of software enabling end-to-end Semantic Web data flow architecture with a Semantic Service Bus (SSB) approach.
has license: 4-clause BSD License
homepage: https://github.com/Orange-OpenSource/ssb-consum-up
latest version: 0.1.0
release date: 2023-03-17
title: ssb-consum-up
wikidata id: Q126361565

Affero General Public License
type: License
license name: Affero General Public License

Apache License
type: License
license name: Apache License

BSD licenses
type: License
license name: BSD licenses

CeCILL-C
type: License
license name: CeCILL-C

Creative Commons Attribution-NonCommercial-NoDerivatives
type: License
license name: Creative Commons Attribution-NonCommercial-NoDerivatives

Eclipse Distribution License
type: License
license name: Eclipse Distribution License

Eclipse Public License 1.0
type: License
license name: Eclipse Public License 1.0

Expat license
type: License
license name: Expat license

GNU Lesser General Public License
type: License
license name: GNU Lesser General Public License

GNU Lesser General Public License, version 2.1
type: License
license name: GNU Lesser General Public License, version 2.1

GNU Lesser General Public License, version 2.1 or later
type: License
license name: GNU Lesser General Public License, version 2.1 or later

GNU Library General Public License, version 2.0 or later
type: License
license name: GNU Library General Public License, version 2.0 or later

Mozilla Public License, version 2.0
type: License
license name: Mozilla Public License, version 2.0

Open Software License
type: License
license name: Open Software License

Q114843172
type: License
license name: Q114843172

2-clause BSD License
type: License
license name: 2-clause BSD License

Unlicense
type: License
license name: Unlicense

W3C Software License
type: License
license name: W3C Software License

GNU Lesser General Public License, version 3.0 or later
type: License
license name: GNU Lesser General Public License, version 3.0 or later

4-clause BSD License
type: License
license name: 4-clause BSD License

GNU Affero General Public License, version 3.0 or later
type: License
license name: GNU Affero General Public License, version 3.0 or later

GNU General Public License, version 2.0
type: License
license name: GNU General Public License, version 2.0

GNU Affero General Public License, version 3.0
type: License
license name: GNU Affero General Public License, version 3.0

GNU General Public License, version 3.0
type: License
license name: GNU General Public License, version 3.0

GNU Lesser General Public License, version 3.0
type: License
license name: GNU Lesser General Public License, version 3.0

3-clause BSD License
type: License
license name: 3-clause BSD License

MIT License
type: License
license name: MIT License

Apache Software License 2.0
type: License
license name: Apache Software License 2.0

proprietary license
type: License
license name: proprietary license