Mnemo vs Scratch

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

Mnemo

Apache-2.0

Mnemo is a free, open-source desktop study app combining block-based notes, FSRS flashcards, and mind maps with no accounts or tracking.

Visit Full details

Scratch

MIT

Scratch is a minimalist, offline-first markdown note-taking app for macOS, Windows, and Linux. Plain text files, keyboard-driven, with no cloud lock-in or account required.

Visit Full details

Side-by-side comparison

	Mnemo	Scratch
License	Apache-2.0	MIT
Self-hostable	No	Yes
GitHub Stars	95	1,596
Forks	9	158
Open Issues	7	83
Last Commit	Oct 9, 2026	Jul 28, 2026
First Released	Jul 30, 2025	Jan 31, 2026
Categories	Study & Flashcard Tools Note Taking & Knowledge Management Tools Mind Mapping	Note Taking & Knowledge Management Tools
Tags	#flashcards #spaced-repetition #notes #knowledge-management #local-first	#markdown #note taking #offline #cross-platform #desktop-app

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

memos

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

Alternative to:

Obsidian

AFFiNE

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

Alternative to:

Notion