Docmost
Documentation & Wikis
Self-hosted wiki and documentation platform with real-time collaborative editing.
Free self-hostedOpen source · AGPL-3.0
Also offers paid editions — see the detail.

Categories
Entries in our catalogue that can take over from Notion. Each one states why, and links the vendor's own source for the claim.
Documentation & Wikis
Self-hosted wiki and documentation platform with real-time collaborative editing.
Also offers paid editions — see the detail.
Why it can replace Notion: Vendor calls it "the self-hosted alternative to Notion" and documents importing a Notion export. Source