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44 stars written in Java
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Getting Started with Spring Boot 3:

Java 37,360 53,653 Updated Apr 11, 2026

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Java 12,609 2,905 Updated Apr 13, 2026

Collect, aggregate, and visualize a data ecosystem's metadata

Java 2,158 391 Updated Apr 12, 2026

Add-ons for openHAB

Java 2,045 3,724 Updated Apr 13, 2026

The webprotege code base

Java 730 270 Updated Feb 12, 2026

The premier open source Data Quality solution

Java 650 184 Updated Apr 10, 2026

Duke is a fast and flexible deduplication engine written in Java

Java 626 190 Updated Oct 11, 2023

SHACL API in Java based on Apache Jena

Java 239 63 Updated Mar 23, 2026

Quick start: pip install jsoniq ⛈️ RumbleDB 2.0.0 "Lemon Ironwood" 🌳 for Apache Spark | Run queries on your large-scale, messy datasets (JSON, text, CSV, Parquet, Delta...) | Data Lakehouse with Up…

Java 239 83 Updated Apr 8, 2026

IRI dereferencer, RDF to HTML

Java 135 58 Updated Dec 17, 2023

Shell script automation to support csv2rdf4lod converter

Java 112 35 Updated Dec 13, 2021

A pretty sweet RML engine, for RDF.

Java 111 20 Updated Mar 21, 2026

YANGDB Open-source, Scalable, Non-native Graph database (Powered by Elasticsearch)

Java 110 8 Updated Jan 7, 2026

A highly scalable RDF triple store with full-text and GeoSPARQL support

Java 109 14 Updated Mar 18, 2026

Streaming generic JSON to RDF converter

Java 96 14 Updated Aug 31, 2023

Java wrapper for the Microsoft Translator API

Java 91 58 Updated Oct 13, 2020

Persistent Adaptive Radix Trees in Java

Java 82 30 Updated Oct 5, 2020

R2RML Parser is a tool that can export relational database contents as RDF graphs, based on an R2RML mapping document.

Java 73 20 Updated Jun 21, 2022

EEA ElasticSearch RDF River Plugin

Java 64 16 Updated Dec 14, 2021

tools to convert/load RDF into Neo4j

Java 54 10 Updated Nov 28, 2025

BatchRefine adds batch processing capabilities to OpenRefine

Java 51 15 Updated Dec 14, 2016

SHACL validation UI, SHACL documentation generator, UML diagram generator from SHACL, SHACL generator from RDF.

Java 51 16 Updated Apr 13, 2026

RDF linter

Java 47 6 Updated Jan 10, 2026
Java 36 21 Updated Dec 19, 2025

HeFQUIN is a query federation engine for heterogeneous federations of graph data sources, including federations of knowledge graphs.

Java 33 3 Updated Apr 11, 2026

Nouvelle version du logiciel Opentheso avec un nouveau design

Java 33 13 Updated Mar 27, 2026

A Java implementation of the bloomier filter data structure

Java 26 6 Updated Jul 28, 2015

RDF storage and SPARQL processing on top of Apache Spark.

Java 21 7 Updated Oct 5, 2022

Information Integration Tool

Java 20 16 Updated Oct 18, 2013
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