Apache Jena, A free and open source Java framework for building Semantic Web and Linked Data applications.

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

SHACL eXtended: extends the TopBraid SHACL API by reinstating the SHACL JavaScript Extensions using GraalVM and more

A library for converting RDF (BIBFRAME) records to Linked Data Graphs and vice versa.

This project aims to create a knowledge hub that can store and query a set of RDF datasets with a versioning system. The project is part of the BD team's research efforts within the LIRIS and VCity project. The aim of this POC is to query a set of version and extract associated knowledge.

Eclipse RDF4J: scalable RDF for Java

Get notifications about changes in your SPARQL endpoint.

Java library to interact with Wikibase

Eclipse Lyo, a Java SDK for OSLC-based tool integration

A reference implementation of OSLC servers in RM, CM, QM, and AM domains based on Eclipse Lyo.

Java application for converting the Internet Movie Database (IMDb) into an RDF dump file.

A command-line utility for processing JSON-LD, RDF, RDFC, JCS, CBOR-LD, and multiformats with native executables for Ubuntu, macOS, and Windows - completely free of JVM dependencies.

The open source tools for building, maintaining and deploying Topic Maps-based applications.

Java OWL Persistence API

A pretty sweet RML engine, for RDF.

A command-line tool for converting, querying, and validating RDF data with SPARQL and SHACL using the Corese engine.

Minimalistic RDF micro-interfaces to facilitate efficient and straightforward integration across Java RDF libraries

An advanced SKOS terminology manager linking concepts to their definitions in documents

A JSON-LD 1.1 (JSON-based Serialization for Linked Data) Processor & API