https://github.com/w3c-cg/awesome-semantic-shapes

A curated list of RDF Shape resources
https://github.com/w3c-cg/awesome-semantic-shapes
List: awesome-semantic-shapes
awesome awesome-list rdf-shapes schacl shex
Last synced: about 2 months ago
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A curated list of RDF Shape resources
Host: GitHub
URL: https://github.com/w3c-cg/awesome-semantic-shapes
Owner: w3c-cg
License: cc0-1.0
Created: 2024-09-18T16:41:00.000Z (9 months ago)
Default Branch: main
Last Pushed: 2025-03-27T16:18:09.000Z (3 months ago)
Last Synced: 2025-04-13T13:03:04.171Z (2 months ago)
Topics: awesome, awesome-list, rdf-shapes, schacl, shex
Homepage:
Size: 83 KB
Stars: 37
Watchers: 11
Forks: 9
Open Issues: 21
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project

ultimate-awesome - awesome-semantic-shapes - A curated list of RDF Shape resources. (Other Lists / Julia Lists)
README

        # Awesome Semantic Shapes [![Awesome](https://awesome.re/badge.svg)](https://awesome.re)

> A curated list of Semantic Shapes resources. Contributions welcome!

> Please, read the [Contribution Guidelines](CONTRIBUTING.md) first.

Semantic shapes enable you to validate RDF graphs against a set of conditions.

Semantic shapes can also be viewed as a description of data graphs that satisfy these conditions.

Such descriptions may be used for a variety of purposes besides validation,

including user interface building, code generation, and data integration.

Semantic shapes are frequently described using the SHACL or ShEx language.

## Contents

- [SHACL Validators](#shacl-validators)

- [ShEx Validators](#shex-validators)

- [Shape Discovery Tools and  Collections](#shape-discovery-tools-and-collections)

- [Shape Convertors and Generators](#shape-convertors-and-generators)

- [Shape-based Query Generators](#shape-based-query-generators)

- [Shape Editors, Visualizations](#shape-editors-visualizations)

- [Declarative UIs](#declarative-uis)

- [IDE support](#ide-support)

- [Books](#books)

- [Tutorials](#tutorials)

- [Talks and Presentations](#talks-and-presentations)

- [Specifications](#specifications)

## SHACL Validators

Software tools or libraries, sorted by programming language.

- [Apache Jena SHACL](https://github.com/apache/jena/tree/main/jena-shacl)   - Supports SHACL Core, SHACL-SPARQL; [docs](https://jena.apache.org/documentation/shacl/index.html); `Apache-2.0` license; `Java`.

- [RDF4J SHACL Engine](https://github.com/eclipse-rdf4j/rdf4j/tree/main/core/sail/shacl)   - Supports SHACL Core (without some property paths, see [5.0.3 improvements](https://github.com/Sveino/Inst4CIM-KG/issues/95#issuecomment-2437819932)), SHACL-SPARQL, incremental validation; [docs](https://rdf4j.org/documentation/programming/shacl/); `BSD-3-Clause` license; `Java`.

- [TopBraid SHACL API](https://github.com/TopQuadrant/shacl)   - Supports SHACL Core, SHACL-SPARQL, SHACL rules; based on Jena; `Apache-2.0` license; `Java`.

  - [EU Interoperability Test Bed (ITB)](https://github.com/ISAITB/shacl-validator)  - playground based on TopBraid SHACL API, [docs](https://www.itb.ec.europa.eu/docs/guides/latest/validatingRDF/index.html): validate [RDF data](https://www.itb.ec.europa.eu/shacl/any/upload), [SHACL shapes](https://www.itb.ec.europa.eu/shacl/shacl/upload), [DCAT-AP.DE](https://www.itb.ec.europa.eu/shacl/dcat-ap.de/upload)

  - [Sparna SHACL playground](https://shacl-play.sparna.fr/play/) - Free online suite of tools to work with SHACL; based on TopBraid SHACL API; `Java`

- [SHACL eXtended (SHACL-X)](https://github.com/SHACL-X/shacl-x) - extension of the TopBraid SHACL API   - Supports what TopBraid SHACL API supports + SHACL JavaScript Extensions (SHACL-JS), SHACL Python Extensions (SHACL-Py); based on Jena; [docs](https://shacl-x.github.io/docs/); `Apache-2.0` license; `Java`.

- [shacl-js](https://github.com/TopQuadrant/shacl-js)  - SHACL API; `Apache` license; `JavaScript`. Recommends migration to `rdf-validate-shacl`. ☠️.

  - [playground](https://shacl.org/playground/) - Browser-based testbed.

- [rdf-validate-shacl](https://github.com/zazuko/rdf-validate-shacl)   - Supports SHACL Core; pure JavaScript validator on top of the [RDFJS](https://rdf.js.org/) stack; `MIT` license; `JavaScript`.

  - [playground](https://zazuko.github.io/shacl-playground) - Browser-based testbed.

- [shacl-engine](https://github.com/rdf-ext/shacl-engine)   - Supports SHACL Core, SHACL-SPARQL; A fast engine for data provided as [RDF/JS](http://rdf.js.org/data-model-spec/) objects; `MIT` license; `JavaScript`.

  - [playground](https://playground.rdf-ext.org/shacl/) - Browser-based testbed.

  - [rdf-ext-cli](https://github.com/rdf-ext/rdf-ext-cli) - Command line tool for validation. Data and shapes can be given as file, URL, or SPARQL endpoint + query.

- [SHACL for Ruby](https://github.com/ruby-rdf/shacl)   - A pure-Ruby library for working with the Shape Constraint Language to validate the shape of RDF graphs; `BSD-3-Clause` license; `Ruby`.

- [maplib](https://github.com/DataTreehouse/maplib)   - High-performance RDF knowledge graph construction, SHACL validation and SPARQL-based enrichment. `Apache-2.0` license. `Rust` with `Python` bindings. But SHACL is not open source: [lib/shacl/src/lib.rs](https://github.com/DataTreehouse/maplib/blob/main/lib/shacl/src/lib.rs) says `unimplemented!("Contact Data Treehouse to try")`  💰

- [rudof](https://github.com/rudof-project/rudof)   - Implements ShEx, SHACL, [DCTAP](https://www.dublincore.org/specifications/dctap/), and other technologies in the RDF ecosystem; library and CLI; `Apache` and `MIT` licenses; `Rust` with `Python` bindings. [docs](https://rudof-project.github.io/rudof/cli_usage/shacl_validate.html).

## ShEx Validators

Software tools or libraries, sorted by programming language.

- [Apache Jena ShEx](https://github.com/apache/jena/tree/main/jena-shex)   - Supports ShEx, ShExC; not supported semantic actions, EXTERNAL; [docs](https://jena.apache.org/documentation/shex/); `Apache-2.0` license; `Java`.

- [shexSpec/shex.js](https://github.com/shexjs/shex.js)   - JavaScript implementation of Shape Expressions; `MIT` license; `JavaScript`.

  - [playground](http://rawgit.com/shexSpec/shex.js/master/doc/shex-simple.html) - Browser-based testbed.

- [ShEx-validator](https://github.com/HW-SWeL/ShEx-validator)  ☠️ - Standalone Node module with a command line interface; `MIT` license; `JavaScript`. Built on top of [ShExDemo](https://github.com/ericprud/ShExDemo)

  - [Validata](https://github.com/HW-SWeL/Validata)  ☠️ - Web-based UI to validate RDF against ShEx schemas; `MIT` license; `JavaScript`.

  - [playground1](http://hw-swel.github.io/Validata/) (HW-SWeL)

  - [playground2](https://www.w3.org/2015/03/ShExValidata/) (W3C)

- [rudof](https://github.com/rudof-project/rudof)   - Implements ShEx, SHACL, [DCTAP](https://www.dublincore.org/specifications/dctap/), and other technologies in the RDF ecosystem; library and CLI; `Apache` and `MIT` licenses; `Rust` with `Python` bindings.  [docs](https://rudof-project.github.io/rudof/cli_usage/shex.html).

## Shape Discovery Tools and Collections

- [RDFminer](https://github.com/Wimmics/RDFminer) - Discover SHACL shapes representative of an RDF data graph, by Wimmics; `CECILL-C` license; `Java`.

- [SHACL Discovery Service](https://github.com/AKSW/discover-shacl-shapes) - Discovery service for SHACL shapes/shape groups; `MIT` license; `PHP`.

- [Shapes of You index](https://index.semanticscience.org/) - SPARQL queries, OWL/SKOS vocabularies, SHACL/ShEx shapes, indexed from public `git` repositories; `MIT` license; `Typescript`, `Python`.

- [SHACL Play! Catalog](https://shacl-play.sparna.fr/play/shapes-catalog) - To see your shapes listed here, add them in the [Shapes Catalog source file on Github](https://github.com/sparna-git/SHACL-Catalog/blob/master/shacl-catalog.ttl).

- [schema.org Shapes](http://datashapes.org/schema) - Schema.org, converted to SHACL by TopQuadrant.

- [Europarl Shapes](https://data.europarl.europa.eu/en/developer-corner) - Application profiles for European Parliament & all related dataset-specific profiles.

## Shape Convertors and Generators

Also see [Polyglot Modeling](https://github.com/json-ld/yaml-ld/issues/19) tools (issue in the YAML-LD project). Sometimes called **SchemaOps**; the name "schema salad" is used sometimes ;-)

- [ShacShifter](https://github.com/AKSW/ShacShifter)  ☠️ - Shape shifter from SHACL to other formats (currently RDForms); `GPL-3.0` license; `Python`.

- [SHACL To JSON Schema](https://github.com/comake/shacl-to-json-schema)   - SHACL-to-JSON-Schema translator; `Typescript`.

- [shapiro](https://github.com/mathiasrichter/shapiro)  - SHACL to JSON-Schema, HTML.

- [rudof](https://github.com/rudof-project/rudof)   - Converts between different RDF Data modeling technologies: SHACL, SHEX, [DCTAP](https://github.com/dcmi/dctap), UML diagrams, HTML documentation. [docs](https://rudof-project.github.io/rudof/cli_usage/convert.html).

- [SHACL Play! JSON-LD context](https://shacl-play.sparna.fr/play/context)   - SHACL-to-JSON-LD context generator; `Java`.

- [SHACL Play! Converter](https://shacl-play.sparna.fr/play/convert) - Converts between RDF schema formats. Has OWL-to-SHACL (open, semi-closed, closed). 

- [owl2shacl](https://github.com/sparna-git/owl2shacl) - OWL-to-SHACL conversion rules.

- [elevont/owl2shacl](https://github.com/elevont/owl2shacl) - A CLI tool that tries to convert simple OWL ontologies into SHACL shapes; `AGPL-3.0` license; `rust`.

- [LinkML](https://linkml.io/linkml/) ([Github](https://github.com/linkml/linkml) and [more repos](https://github.com/orgs/linkml/repositories))   [![PyPi](https://img.shields.io/pypi/v/linkml.svg)](https://pypi.python.org/pypi/linkml) - Input is YAML; output is [SHACL](https://linkml.io/linkml/generators/shacl.html), [ShEx](https://linkml.io/linkml/generators/shex.html), JSON Schema, JSON-LD context and instances, SPARQL, OWL, GraphQL, Pydantic Python, ProtoBuf, various documentation formats; `Apache` license `Python`.

- TNO [Semantic Treehouse](https://www.semantic-treehouse.nl/) - Has [SHACL input](https://www.semantic-treehouse.nl/docs/wizard/shacl-input) and [output](https://www.semantic-treehouse.nl/docs/wizard/shacl-output). Used as a Vocabulary Hub in dataspaces.

- [TopQuadrant: OWL Axioms to SHACL Constraints](https://www.topquadrant.com/doc/latest/reference/Transform_ConvertOWLAxiomsToSHACLConstraints.html) - Commercial, closed-source solution 💰.

- [Ontotext SOML](https://platform.ontotext.com/semantic-objects/soml/) - input is YAML, output is GraphQL schema with querying and mutations, SHACL shapes for validation. Commercial, closed-source 💰.

## Shape-based Query Generators

- [shape-to-query](https://github.com/hypermedia-app/shape-to-query)   - Generate SPARQL queries from SHACL Shapes; [docs](https://shape-to-query.hypermedia.app/docs); `MIT` license; `Typescript`.

  - [playground](https://shape-to-query.hypermedia.app)

- [SHACL Play! SPARQL](https://shacl-play.sparna.fr/play/sparql) - Generates SPARQL queries to extract RDF subset based on SHACL specification of the target dataset.

## Shape Editors, Visualizations

- [Allotrope Shape Editor](https://gitlab.com/allotrope-open-source/allotrope-devops/-/wikis/shacl-shape-editor) - The Shape Editor supports editing of shacl and shaclc files; `Apache-2.0` license; `Java`.

- [SHACL Play! Tools](https://shacl-play.sparna.fr/) - Edit & visualize SHACL; `LGPL-3.0 license` license; `Java`.

  - [SHACL in Excel](https://shacl-play.sparna.fr/play/shaclexcel) - A SHACL editor from Excel.

  - [SHACL to Documentation](https://shacl-play.sparna.fr/play/doc) - A documentation generator to print an application profile specified in SHACL.

  - [SHACL to UML Diagrams](https://shacl-play.sparna.fr/play/draw) - A diagram generator to display an application profile specified in SHACL.

## Declarative UIs

Data viewers/Editors based on shapes.

- [shaperone](https://github.com/hypermedia-app/shaperone)   - SHACL Shapes Form generator; [docs](https://forms.hypermedia.app); `MIT` license; `Typescript`.

  - [playground](https://forms.hypermedia.app/playground)

- [Sparnatural](https://github.com/sparna-git/Sparnatural)   - Visual knowledge graph explorer with SPARQL, in the browser, configurable with SHACL; [docs](https://docs.sparnatural.eu/index.html#31-shacl-configuration); `LGPL-3.0 license` license; `Typescript`.

## IDE support

- [Linked Data Extension](https://marketplace.visualstudio.com/items?itemName=Elsevier.linked-data) - VS Code Extension for editing RDF files with embedded SHACL validator and SPARQL engine.

- [SHACL Language Server](https://marketplace.visualstudio.com/items?itemName=stardog-union.vscode-langserver-shacl) - A VS Code extension providing language intelligence (diagnostics, hover tooltips, auto-completion, etc.) for W3C standard SHACL via the Language Server Protocol.

- [Mentor RDF for VS Code](https://marketplace.visualstudio.com/items?itemName=faubulous.mentor) - Code editing support for RDF, RDFS, OWL, SKOS, SHACL and SPARQL.

- [SHACLC Language Server](https://marketplace.visualstudio.com/items?itemName=jeswr.shaclc-language-server) ([source](https://github.com/jeswr/shaclc-language-server)) - A VS Code extension providing language intelligence (diagnostics, hover tooltips, auto-completion, etc.) for CG standard SHACL Compact Syntax via the Language Server Protocol. MIT License.

- [RDF and SPARQL](https://rdfandsparql.com/) - IntelliJ plugin with editor support for ShEx Compact syntax and SHACL validation.

## Books

- [Validating RDF Data (2018)](https://book.validatingrdf.com) - The SHACL and ShEx book.

## Tutorials

- [Shapes applications and tools: ISWC'20 Tutorial](https://www.validatingrdf.com/tutorial/iswc2020/) - Main tutorial.

- [neonto Academy](https://neonto.de/solutions/academy/) 💰 - Online academy with interactive programming tasks for SHACL and other semantic web standards

## Talks and Presentations

- [The Many Shapes of SHACL by Holger Knublauch](https://www.youtube.com/watch?v=ccs-KhnWR1U) - LOTICO Talk, 18 Jun 2020.

- [One Ontology, One Data Set, Multiple Shapes with SHACL by Tara Raafat](https://www.youtube.com/watch?v=apG5K3zc4V0) - Connected Data London, 2019.

- [An Overview of SHACL Shapes Constraint Language: Part 2](https://www.youtube.com/watch?v=TSDplfqw8rM) - TopQuadrant, 2017.

- [An Overview of SHACL Shapes Constraint Language](https://www.youtube.com/watch?v=_i3zTeMyRzU) - TopQuadrant, 2017.

## Specifications

- SHACL W3C Recommendations & Notes

  - [Shapes Constraint Language (SHACL)](https://www.w3.org/TR/shacl/) - W3C Recommendation, 20 July 2017.

  - [SHACL Advanced Features](https://www.w3.org/TR/shacl-af/) - W3C Working Group Note, 08 June 2017.

  - [SHACL JavaScript Extensions](https://www.w3.org/TR/shacl-js/) - W3C Working Group Note, 08 June 2017.

  - [SHACL Test Suite and Implementation Report](https://w3c.github.io/data-shapes/data-shapes-test-suite/) - W3C Document 01 July 2019.

  - [SHACL Use Cases and Requirements](https://www.w3.org/TR/shacl-ucr/) - W3C Working Group Note 20 July 2017.

  - [Data Shapes Working Group](https://www.w3.org/2024/12/data-shapes.html) - Re-chartered from Dec 2024 to Dec 2026 to update the specs. [Join](https://www.w3.org/groups/wg/data-shapes/join)

- SHACL Community Group Latest Drafts & Notes

  - [SHACL 1.2 Core](https://w3c.github.io/shacl/shacl-core/)

  - [SHACL 1.2 SPARQL Extensions](https://w3c.github.io/shacl/shacl-sparql/)

  - [SHACL Advanced Features 1.1](https://w3c.github.io/shacl/shacl-af/)

  - [SHACL Compact Syntax](https://w3c.github.io/shacl/shacl-compact-syntax/)

  - [SHACL JavaScript Extensions](https://w3c.github.io/shacl/shacl-js/)

- SHACL-related specifications

  - [The Shape Topologies algorithm](https://treecg.github.io/specification/shape-topologies)

  - [DASH Data Shapes](https://www.datashapes.org/) - Platform-independent extensions of SHACL for common tasks. Stuff that could become an official standard in the future.

- ShEx

  - [Shape Expressions Language 2.1](https://shex.io/shex-semantics/index.html) - Final Community Group Report, 8 October 2019.

  - [ShEx Primer](https://shexspec.github.io/primer/index.html) - Draft Community Group Report, 7 December 2022.

  - [ShEx Text Suite](https://github.com/shexSpec/shexTest) and [website](https://shexspec.github.io/shexTest/) - Version `[email protected]`, last release 5 October 2018.

  - [Recommended Practice for Standard for Shape Expression Schemas](https://shexspec.github.io/spec/) - IEEE Computer Society P3330/D3, Draft 9 October 2024. Next-version spec with `EXTENDS` keyword.

  - [ShEx Primer](https://shex.io/primer-next/) - Primer with `EXTENDS` keyword, Draft Community Group Report 25 May 2022.

## Footnotes

Legend:

- ☠️ : Each one denotes 5 years since last update (e.g., ☠️☠️☠️ denotes 15 years).

- 💰 : Denotes closed source commercial software.
ecosyste.ms

Data

Tools

Indexes

Applications

Experiments

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https://github.com/w3c-cg/awesome-semantic-shapes

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README
