Best Open Source Obsidian Alternatives

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

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.

A privacy-first, open-source platform for networked thought. Organize, connect, and discover your ideas with ease.

A feature-rich wiki platform with real-time collaboration, rich-text editing, advanced permissions, and support for diagrams, translations, and file management.

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

The next generation of open-source AI-powered card notes designed to help you quickly capture and organize inspiration so that ideas never run out.

A versatile, open-source tool for organizing thoughts, notes, and data with customizable objects and relational structures.

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

XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

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

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

A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.

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.