Graphs for Everyone

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

Free implementation of Play Services

The Physical Web: walk up and use anything

Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance

Android (f/w 2.1+) on screen keyboard for multiple languages.

The Nu Html Checker (vnu)

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

The home of the Unicode Common Locale Data Repository

Open source research data repository software

Blazegraph High Performance Graph Database

Semantic Parser with Execution

Information Integration Tool

GPS tracking tool for OpenStreetMap

ORCID Open Source Project

Eclipse RDF4J: scalable RDF for Java

Database to RDF mapping engine and SPARQL server

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

A set of reusable Java components that implement functionality common to any web crawler

SHACL API in Java based on Apache Jena

SPARQL for Tables: Turn CSV into RDF using SPARQL syntax

Federated Knowledge Extraction Framework

A modern desktop application for the Nanoleaf Aurora and Canvas

An RDF Unit Testing Suite

LinkedPipes ETL is an RDF based, lightweight ETL tool

A tool for supervised Machine Learning in OWL and Description Logics

Github mirror of "wikidata/query/rdf" - our actual code is hosted with Gerrit (please see https://www.mediawiki.org/wiki/Developer_access for contributing

RDF-Centric Map/Reduce Framework and Freebase data conversion tool

IRI dereferencer, RDF to HTML

Sparql -> SQL Rewriter enabling virtual RDB -> RDF mappings