An open-source graph database

TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and reasoning on structured data.

RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information.

A JSON-LD Processor and API implementation in JavaScript

An open source headless CMS / real-time database. Powerful table editor, full-text search, and SDKs for JS / React / Svelte.

JSON-LD TypeScript types for Schema.org vocabulary

Research photo management

Graph+Semantics: Import/Export RDF from Neo4j. SHACL Validation, Model mapping and more.... If you like it, please ★ ⇧

:bulb: dokieli is a clientside editor for decentralised article publishing, annotations and social interactions

DefraDB is a Peer-to-Peer Edge-First Database. It's the core data storage system for the Source Ecosystem, built with IPLD, LibP2P, CRDTs, and Semantic open web properties.

Linked Data Visualizations Across Multiple Files

ActivityStreams & ActivityPub in golang, oh my!

Configurable Generation of Synthetic Schemas and Knowledge Graphs at Your Fingertips

JSON-LD processor written in Python

The low-code Knowledge Graph application platform. Apache license.

🔗 Semantic MediaWiki turns MediaWiki into a knowledge management platform with query and export capabilities

[ARCHIVED] Old specs repo, moved to https://github.com/ipld/ipld

An open and modular implementation of the Solid specifications

A curated list of ontology things

Linked Open Data Modeling Language

Omeka S is a web publication system for universities, galleries, libraries, archives, and museums. It consists of a local network of independently curated exhibits sharing a collaboratively built pool of items, media, and their metadata.

Eclipse RDF4J: scalable RDF for Java

RDF.rb is a pure-Ruby library for working with Resource Description Framework (RDF) data.

JSON-LD processor for PHP

A JSON-LD processor for Go

PHP implementation of a JSON-LD Processor and API

SPARQL Anything is a system for Semantic Web re-engineering that allows users to ... query anything with SPARQL.

Sparnatural : visual knowledge graph explorer with SPARQL, in the browser, configurable with SHACL

TopicDB is a topic maps-based semantic graph store (using SQLite for persistence)

A LevelDB-backed graph database for JS runtimes (Node.js, Deno, browsers, ...) supporting SPARQL queries and the RDF/JS interface.