memos vs NoteDiscovery

Comparing two open source alternatives to Obsidian and Notion and Evernote and Google Keep. Use the comparison below to decide which one fits your needs.

memos

MIT

Privacy-first, self-hosted note-taking platform with markdown support, tagging, and built-in AI — a lightweight alternative to Notion and Obsidian.

Visit Full details

NoteDiscovery

MIT

A self-hosted knowledge base for note-taking with markdown support, Zettelkasten methodology, and Docker deployment.

Visit Full details

Side-by-side comparison

	memos	NoteDiscovery
License	MIT	MIT
Self-hostable	Yes	Yes
GitHub Stars	62,791	2,777
Forks	4,722	233
Open Issues	49	3
Last Commit	Sep 6, 2026	Sep 5, 2026
First Released	Dec 8, 2021	Nov 5, 2025
Categories	Note Taking & Knowledge Management Tools	Note Taking & Knowledge Management Tools
Tags	#markdown #memo #note taking #microblog	#knowledge-management #note taking #markdown #docker #self hosted

GitHub stars over time

memos62,791

NoteDiscovery

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.

Alternative to:

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.

Alternative to:

Obsidian

Jotty

Lightweight self-hosted app for managing personal file-based notes and checklists.

Alternative to:

Notion

Outline

The fastest growing-team knowledge base — beautiful, realtime collaborative, feature packed, and markdown compatible Notion and Confluence alternative.

Alternative to:

Notion

AFFiNE

Open-source knowledge base combining note-taking, whiteboard, and project planning in one workspace.

Alternative to:

Notion

SilverBullet

Markdown-based note-taking app with powerful live queries, templates, and a pluggable scripting system for power users.

Alternative to:

Notion