OpenRefine is a free, open source power tool for working with messy data and improving it

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

Protege Desktop

Open source research data repository software

OWL API main repository

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

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

An RDF Unit Testing Suite

Scripts that Bio2RDF users have created to generate RDF versions of scientific datasets

A Linked Data frontend for SPARQL endpoints

An extension to OpenRefine that enables graphical mapping of OpenRefine project data to an RDF skeleton and then exporting it in RDF format

AgreementMakerLight Eclipse Project

LOD-enabled version of OpenRefine. (This project is not actively maintained anymore)

reasoning over RDF stream made easy

A web client to browse and publish nanopublications.

A Library and Tool for Symbolic Melodic Similarity based on Shape Similarity

SPARQL Endpoint Status

Trusty URI implementation for Java

[0.9.9 Released] A high performance non-SPARQL based RDF data cube validator

Podium request portal for biobanks

An Evaluation of Triplestore Benchmarks

OWLunit allows you to define and run unit tests for ontologies.

Code for the ISWC 2018 paper "Detecting Erroneous Identity Links on the Web using Network Metrics"

Practical material for the Intelligent Systems course, based on the google ai challenge 'planet wars'

This project is developed to check the quality of the linked data in datasets

A proof of concept implementation of a pragmatic approach towards preserving and serving Linked Data