An open-source graph database

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

Contextualise is a simple but flexible tool particularly suited for organising information-heavy projects and activities consisting of unstructured and widely diverse data and information resources

open source model driven graph database for knowledge graph representation.

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

Linked Data Visualizations Across Multiple Files

Content-addressed, authenticated, immutable data structures

JSON-LD processor written in Python

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

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

ActivityStreams & ActivityPub in golang, oh my!

Research photo management

JSON-LD TypeScript types for Schema.org vocabulary

JSON-LD processor for PHP

PHP implementation of a JSON-LD Processor and API

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.

Linked Data & RDF Manufacturing Tools in Clojure

Federated Knowledge Extraction Framework

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

🤖 Neural SPARQL Machines for Knowledge Graph Question Answering.

GraphQL interface for querying and serving linked data on the Web.

Generic Linked Data browser and UX component framework. Apache license.

CKAN ♥ DCAT

A JSON-LD processor for Go

RDF library for NodeJS and the Browsers

GraphQL interface for querying and serving linked data on the Web.

A JavaScript DSL for querying Linked Data on the Web

Open Source REST API for named entity extraction, named entity linking, named entity disambiguation, recommendation & reconciliation of entities like persons, organizations and places for (semi)automatic semantic tagging & analysis of documents by linked data knowledge graph like SKOS thesaurus, RDF ontology, database(s) or list(s) of names

Link Discovery Framework for Metric Spaces.