Wikipedia
- Wikimedia Statistics – statistics for Wikimedia Projects: Wikipedia, Commons, Wikidata, Wikivoyage, Wiktionary, Wikibooks, Wikinews, Wikiquote, Wikiversity
- Pageviews Analysis – tools to analyze page view and unique device statistics for Wikimedia Foundation wikis
- WikiRank – quality and popularity assessment of Wikipedia articles in different languages
- GFS Data Browser – prototype for Global Fact Sync Project which aims to synchronize Wikidata and Wikipedia infoboxes
- BestRef – popularity and reliability assessment of sources in references of Wikipedia in different languages
- Infoboxes.net – quality comparison of infoboxes in Miltilingual Wikipedia
- WikiBest – a game for improving Wikipedia quality