Best Open Source OneNote Alternatives

An open-source alternative to Notion, offering powerful note-taking, task management, and database features in a customizable interface.

All-in-one workspace for note-taking, whiteboarding, and task management with real-time collaboration and local-first architecture.

A self-hosted, open-source solution for secure and efficient note-taking, allowing you to easily capture and share your thoughts.

A free, cross-platform note-taking and to-do application with end-to-end encryption for seamless organization and productivity.

SiYuan is a personal knowledge management system that prioritizes privacy, supports Markdown, and offers block-level referencing and bidirectional linking.

End-to-end encrypted note-taking app with cross-platform sync, rich text editing, and offline support for ultimate privacy and productivity.

Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.

A local-first note-taking application that prioritizes privacy and efficiency, featuring Markdown support, offline access, and powerful organization tools.

Minimal note-taking app storing Markdown notes in local SQLite database. Features instant search, flexible tagging, keyboard shortcuts, and offline access.

A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.

OpenNotas is a multi-platform, end-to-end encrypted note-taking app that offers simplicity, synchronization, and offline functionality.

Justnote is a secure note-taking app that lets you easily create and sync notes across devices while maintaining full control of your data.