This post is a list of sister projects of the Wikimedia Foundation as of February 29th, 2020. There are 13 projects listed below in alphabetical order.
Source: Wikimedia sister projects
License: CC BY-SA 3.0
1. MediaWiki: "...free and open-source wiki software." (Wikipedia: MediaWiki, 11.6.22 UTC 14:47)
2. Meta-Wiki: "...central site for coordinating all projects and the Wikimedia community." (Wikipedia: Wikimedia Foundation, 11.9.22 UTC 22:47)
3. Wikibooks: "...creation of free content e-book textbooks and annotated texts that anyone can edit." (Wikipedia: Wikibooks, 10.27.22 UTC 10:02)
4. Wikidata: "...common source of open data..." (Wikipedia: Wikidata, 10.16.22 UTC 06:32)
5. Wikinews: "...free-content news wiki..." (Wikipedia: Wikinews, 9.30.22 UTC 22:33)
6. Wikimedia Commons: "...media repository of open images, sounds, videos and other media." (Wikipedia: Wikimedia Commons, 10.7.22 UTC 21:53)
7. Wikipedia: "...multilingual free online encyclopedia..." (Wikipedia: Wikipedia, 11.13.22 UTC 16:24)
8. Wikiquote: "...reference of quotations from prominent people, books, films, proverbs, etc..." (Wikipedia: Wikiquote, 10.30.22 UTC 11:56)
9. Wikisource: "...library of free-content textual sources..." (Wikipedia: Wikisource, 11.2.22 UTC 12:14)
10. Wikispecies: "...catalogue of all species..." (Wikipedia: Wikispecies, 10.8.22 UTC 19:01)
11. Wikiversity: "...supports learning communities, their learning materials and resulting activities." (Wikipedia: Wikiversity, 10.28.22 UTC 07:51)
12. Wikivoyage: "travel guide for travel destinations and travel topics..." (Wikipedia: Wikivoyage, 10.15.22 UTC 03:09)
13. Wiktionary: "...dictionary of terms..." (Wikipedia: Wiktionary, 10.19.22 UTC 23:07)