replacing Notion
All-in-one workspace for notes, docs, wikis, and databases — Notion pricing: $10-$18/user/month. Below: 8 free, self-hostable open source projects that cover the same ground, ranked by real GitHub adoption.
There are 8 open source Notion alternatives tracked on this registry, against Notion pricing of $10-$18/user/month. The most-adopted is AppFlowy with 78,112 GitHub stars under AGPL-3.0, written in Dart. Together the set has 365,848 stars across 4 languages and 2 licences. All 8 are free to self-host with no licence fee, and 8 of 8 received a commit in the last 90 days. 8 head-to-head Notion comparisons are available.
The open source projects below are free to self-host. If you would rather pay for a managed service, these are the hosted products in the same space — listed with the vendor's own pricing.
AppFlowy is an open-source collaborative workspace platform that combines note-taking, project management, wikis, and AI features into a single interface. It runs as a desktop and mobile application and supports self-hosting, built with Flutter for the frontend and Rust for the backend. AppFlowy lives in the productivity and knowledge management ecosystem, positioned explicitly as a Notion alternative.
AGPL-3.0 · Dart · Notion vs AppFlowy →
AFFiNE is an open-source, privacy-first workspace that merges documentation, whiteboarding, and databases into one hyper-fused platform. It lives in the productivity and knowledge-management ecosystem, positioned as a direct alternative to Notion and Miro. Built with local-first principles, it ensures users retain full control of their data while supporting real-time collaboration across web and desktop clients.
NOASSERTION · TypeScript · Notion vs Affine →
Memos is an open-source, self-hosted note-taking tool designed for rapid capture of short-form content like daily logs, links, code snippets, and microblog-style entries. It lives in the Go ecosystem and uses a Markdown-native, timeline-based interface. Unlike traditional note apps that enforce folders or rigid templates, Memos prioritizes speed and simplicity: users write in Markdown, attach media, and save without selecting titles or locations.
MIT · Go · Notion vs Memos →
AI workspace for docs, projects, and wikis you control
Docs, whiteboards, and databases in one privacy-first workspace
Self-hosted timeline for quick notes, logs, and snippets
Privacy-first knowledge management with block-level linking
Privacy-first knowledge base that connects your notes
Fast, collaborative wiki for teams who need organized docs
Private workspace for notes, tasks, and databases
Secure, encrypted notes for your digital life
last updated nightly · ranking method: github stars, live-tracked
AppFlowy is the most-starred open source alternative to Notion in this registry, with 78,112 GitHub stars. 8 alternatives are compared here in total.
Yes. Every project listed on this page is open source and free to self-host — there is no licence fee. Some projects also sell a managed hosted version, but the self-hosted path costs nothing.
Compare licence terms, community size (stars), primary language and release activity. A fast-moving project with a compatible licence and an active maintainer base matters more than raw star count when you are committing to a migration.