XWiki
French open-source enterprise wiki founded in 2004 in Paris. Used by Amazon, Lenovo, and governments across Europe for knowledge management and collaboration. Self-hostable with full data sovereignty. Also the company behind CryptPad.
Quick facts
Why does it score 100?
XWiki is based in Paris and legally domiciled in France.
XWiki is independent, with Telecom Paris holding only a minor investment.
XWiki hosts on OVHcloud in France.
XWiki is fully open source and used by organisations including Amazon, Lenovo and several European governments, with two decades of track record.
See how they compare
XWikiWhat does it replace?
Notion 
Confluence 
Google Docs More European Note-taking alternatives
Open-source note-taking app created by French developer Laurent Cozic. Supports end-to-end encryption, Markdown, web clipping, and sync via Joplin Cloud (France-hosted) or self-hosted. Available on all platforms with a rich plugin ecosystem.
End-to-end encrypted note-taking built into Tuta Mail by German company Tutao GmbH. Post-quantum TutaCrypt encryption. Notes stored on own German servers. Included in all Tuta plans including free.
End-to-end encrypted note-taking app acquired by Proton AG in April 2024. Now running on Proton's Swiss infrastructure. Open source, independently audited four times, self-hostable. 300,000+ active users. Continues operating as a standalone product under Proton ownership.