Many Notes vs OpenKnowledge
Comparing two open source alternatives to Notion and Obsidian . Use the comparison below to decide which one fits your needs.
Many Notes
MITA Markdown note-taking web application designed for simplicity with vaults, collaboration, and PWA support.
OpenKnowledge
GPL-3.0AI-native, local-first markdown editor and LLM wiki with built-in integrations for Claude, Codex, and other agents.
Side-by-side comparison
| Many Notes | OpenKnowledge | |
|---|---|---|
| License | MIT | GPL-3.0 |
| Self-hostable | Yes | Yes |
| GitHub Stars | 1,012 | 530 |
| Forks | 41 | 15 |
| Open Issues | 8 | 1 |
| Last Commit | Jun 13, 2026 | Jun 26, 2026 |
| First Released | Jul 9, 2024 | Jun 3, 2026 |
| Categories | ||
| Tags |
Similar open source alternatives
AppFlowy
Open source Notion alternative that brings projects, wikis, and teams together with AI while keeping you in control of your data.
Notion
HelixNotes
A fast, privacy-first local markdown note-taking app built with Tauri and SvelteKit. Your notes stay as plain .md files on your device.
Obsidian
Jotty
Lightweight self-hosted app for managing personal file-based notes and checklists.
Notion
Outline
The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.
Notion
memos
A modern, open-source, self-hosted knowledge management and note-taking platform designed for privacy-conscious users and organizations.
Obsidian
AFFiNE
Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.
Notion