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Note Taking

Open Source Alternatives

Find and compare the best open source alternatives to popular software tools. Get weekly recommendations in your inbox.

Appflowy faviconAppflowy

AppFlowy is an open-source alternative to Notion, providing a self-hosted workspace for notes, tasks, and knowledge management.

63,621 stars
Last commit Jun 3, 2025
agpl-3.0

AFFiNE faviconAFFiNE

A privacy-first collaborative knowledge platform that combines note-taking, whiteboarding, and database capabilities in a seamless workspace.

51,314 stars
Last commit Jun 3, 2025

Outline faviconOutline

Outline is a modern team knowledge base and wiki platform designed for secure, collaborative documentation.

32,330 stars
Last commit Jun 3, 2025

Anki faviconAnki

Anki is a powerful and intelligent flashcard program that makes remembering things easy through spaced repetition learning.

21,776 stars
Last commit Jun 3, 2025

Zettlr faviconZettlr

Zettlr is a privacy-focused writing application that serves as a complete publication workbench, supporting authors from initial notes to final manuscript submission.

11,128 stars
Last commit Jun 3, 2025
gpl-3.0

Notesnook faviconNotesnook

Notesnook is a private, end-to-end encrypted note-taking application that prioritizes user privacy and security while offering cross-platform accessibility.

11,997 stars
Last commit Jun 3, 2025
gpl-3.0

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