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Best Open-Source Notion Alternatives (2026)

10 self-hostable projects that directly address Notion — without per-seat pricing that climbs fast for teams. The shortlist is manually checked for product fit before we compare self-host difficulty, deploy paths, maintenance, and licensing.

Answer first

Choose AFFiNE or AppFlowy when you need a Notion-style workspace with documents and databases. Choose Docmost or BookStack when the real job is a team wiki, and SiYuan or Logseq for a personal knowledge base. No single option reproduces every Notion database, automation, and collaboration feature.

Editorial fit reviewed 2026-09-19 · repository activity and stars update separately

Teams usually leave Notion for data control, self-hosting, predictable cost, or a more focused tool. Notion does support export, but nested pages, databases, relations, formulas, comments, permissions, and embeds may not transfer cleanly—so migration quality matters as much as the feature list.

A warm, inviting workspace featuring coffee, handwritten notes, and a pen on the desk.
Photo by David Bares on Pexels

Choose by the job you need done

Closest all-in-one workspace

AFFiNE

AFFiNE combines documents, whiteboards, and databases in one local-first workspace.

Trade-off: Heavier to operate than a focused wiki, and migration fidelity still needs a trial run.

Collaborative team wiki

Docmost

Docmost is a focused collaborative wiki without pretending to replace every Notion database feature.

Trade-off: A better Confluence-style replacement than a full Notion workspace clone.

Personal, private knowledge base

SiYuan

SiYuan offers block-based notes and databases with a comparatively simple Docker path.

Trade-off: It is primarily personal knowledge management; official managed hosting is not assumed here.

Compare the 10 reviewed alternatives

ProjectDeployManagedLicense
AFFiNE
TypeScript
73k ★
3/5
Moderate
Docker
Docker Compose
MIT7 days agoRepo
AppFlowy
Dart
77k ★
3/5
Moderate
Docker
Docker Compose
AGPL-3.010 days agoRepo
Docmost
TypeScript
22k ★
3/5
Moderate
Docker
Docker Compose
AGPL-3.08 days agoRepo
Outline
TypeScript
41k ★
3/5
Moderate
Docker
Docker Compose
+1
BSL-1.16 days agoRepo
BookStack
PHP
19k ★
3/5
Moderate
Docker
Docker Compose
+1
MIT6 days agoRepo
Wiki.js
JavaScript
29k ★
3/5
Moderate
Docker
Docker Compose
+1
AGPL-3.06 days agoRepo
SiYuan
TypeScript
46k ★
2/5
Simple
Docker
Manual
AGPL-3.06 days agoRepo
Logseq
Clojure
45k ★
4/5
Involved
Manual
AGPL-3.06 days agoRepo
Notesnook
TypeScript
15k ★
3/5
Moderate
Docker
Docker Compose
GPL-3.06 days agoRepo
CryptPad
JavaScript
7.9k ★
3/5
Moderate
Docker
Manual
AGPL-3.09 days agoRepo

What to look for: Decide first whether you need the full docs-plus-databases-plus-wiki combo or just a clean team wiki, because that splits the field sharply. Also weigh real-time collaboration and a usable web editor against deployment simplicity, since the most Notion-like options (AppFlowy, AFFiNE) are heavier to run than a plain wiki like BookStack or Wiki.js.

Head-to-head:AFFiNE vs NotionAppFlowy vs NotionDocmost vs NotionOutline vs NotionBookStack vs Notion

Before you migrate

  1. 1Export a representative Notion workspace and test nested pages, attachments, databases, relations, and formulas.
  2. 2Confirm real-time collaboration, permissions, SSO, public sharing, mobile use, and offline behavior for your team.
  3. 3Run the candidate beside Notion for a week before moving the source of truth.

The alternatives, reviewed

  1. #1
    AFFiNE
    Self-host: Moderate

    Privacy-first, local-first workspace combining docs, whiteboards, and databases

    73k TypeScript MIT 7 days ago
    How it compares to Notion
    • Self-hosted real-time sync (AFFiNE Cloud) has historically lagged the desktop/local experience and can be fiddly to configure.
    • Smaller third-party integration and plugin ecosystem than Notion.
    • Mobile apps are less mature than the desktop client.
    • Some advanced AI and collaboration features are gated to the paid cloud tier.
    RepoDetails & deploy →
  2. #2
    AppFlowy
    Self-host: Moderate

    Open-source Notion alternative built on Flutter and Rust

    77k Dart AGPL-3.0 10 days ago
    How it compares to Notion
    • Self-hosted AppFlowy Cloud setup is involved and less polished than the local desktop app.
    • Fewer database view types and formula capabilities than Notion.
    • Limited third-party integrations and public API.
    • Real-time multiplayer collaboration is newer and less battle-tested.
    RepoDetails & deploy →
  3. #3
    Docmost
    Self-host: Moderate

    Open-source collaborative wiki and documentation software

    22k TypeScript AGPL-3.0 8 days ago
    How it compares to Notion
    • Younger project with a smaller feature set than Confluence.
    • No database/table views or relational content like Notion.
    • Some enterprise features (SSO/SAML) are gated to a paid edition.
    • Smaller integration and extension ecosystem.
    RepoDetails & deploy →
  4. #4
    Outline
    Self-host: Moderate

    Fast, collaborative team knowledge base and wiki

    41k TypeScript BSL-1.1 6 days ago
    How it compares to Notion
    • Requires an external SSO/OAuth provider for authentication, adding setup friction.
    • No database/table views or relational data like Notion.
    • Licensed under BSL (not fully open source / has usage restrictions).
    • Fewer block types and no whiteboard/canvas features.
    RepoDetails & deploy →
  5. #5
    BookStack
    Self-host: Moderate

    Simple, self-hosted documentation and wiki platform

    19k PHP MIT 6 days ago
    How it compares to Notion
    • Fixed Books/Chapters/Pages hierarchy is rigid versus Notion's free-form structure.
    • No real-time collaborative editing.
    • No database/table views or relational content.
    • Plugin/extension ecosystem is minimal.
    RepoDetails & deploy →
  6. #6
    Wiki.js
    Self-host: Moderate

    Modern, powerful, self-hosted wiki built on Node.js

    29k JavaScript AGPL-3.0 6 days ago
    How it compares to Notion
    • No real-time collaborative editing.
    • No database/table views or relational content.
    • The long-awaited 3.x rewrite has been slow and partly unstable.
    • Requires a separate database (Postgres/MySQL) to be configured.
    RepoDetails & deploy →
  7. #7
    SiYuan
    Self-host: Simple

    Privacy-first personal knowledge management with block-level editing

    46k TypeScript AGPL-3.0 6 days ago
    How it compares to Notion
    • Primarily single-user; no real-time team collaboration.
    • Official cloud sync and some features require a paid subscription.
    • Documentation and UI are translated from Chinese and can be uneven.
    • Smaller English-language community and plugin ecosystem.
    RepoDetails & deploy →
  8. #8
    Logseq
    Self-host: Involved

    Privacy-first, local-first outliner for networked notes

    45k Clojure AGPL-3.0 6 days ago
    How it compares to Notion
    • Primarily a local desktop app; there is no official self-hosted web server, only file sync via Git/cloud storage.
    • Official sync service is paid and separate from the open-source core.
    • The database-backed rewrite has had a long, disruptive transition.
    • Mobile apps are less polished and sync can be tricky.
    RepoDetails & deploy →
  9. #9
    Notesnook
    Self-host: Moderate

    End-to-end encrypted note-taking app with cross-platform clients

    15k TypeScript GPL-3.0 6 days ago
    How it compares to Notion
    • Self-hosted server documentation is still maturing and can be tricky to set up
    • No built-in AI writing assistant unlike Notion AI
    • Offline-first mobile sync occasionally has edge-case conflicts on initial vault load
    RepoDetails & deploy →
  10. #10
    CryptPad
    Self-host: Moderate

    Encrypted, real-time collaborative office suite you can self-host

    7.9k JavaScript AGPL-3.0 9 days ago
    How it compares to Notion
    • Real-time performance degrades noticeably with large documents or many simultaneous editors
    • No native mobile apps; browser-only experience on phones is suboptimal
    • Admin management UI is rudimentary compared to Confluence or Google Workspace admin consoles
    RepoDetails & deploy →

The verdict

For a Notion-style all-in-one workspace, AppFlowy and AFFiNE are the closest matches and both offer managed hosting if you don't want to run them yourself; if you mainly need a fast team wiki, Outline is the more focused, lower-maintenance pick.

Still deciding? Compare AFFiNE vs AppFlowy side by side →

Notion alternatives — frequently asked questions

What is the closest self-hosted alternative to Notion?

AFFiNE and AppFlowy are the closest all-in-one candidates in this shortlist. Both combine documents with database-style organization, but you should test your own exported workspace because formulas, relations, embeds, and permissions do not map perfectly.

What should a team use if it only needs a wiki?

Docmost, BookStack, Wiki.js, and Outline are more focused than a full Notion clone. Docmost emphasizes collaborative editing; BookStack provides a simple book-and-page structure. Outline is source-available under BSL-1.1 rather than OSI open source.

Which option is best for personal knowledge management?

SiYuan and Logseq are the most relevant choices here. SiYuan is block-based and can run with Docker; Logseq is local-first and built around linked notes and outlines.

Can I migrate a Notion workspace without losing anything?

Do not assume a lossless migration. Export a representative workspace and verify nested pages, files, databases, relations, formulas, comments, permissions, and public links before committing to any replacement.

Keep exploring

All Notes & Knowledge Base →Self-hosted directory →Easiest to self-host →
Confluence alternativesEvernote alternativesObsidian alternatives