Note Taking GitHub Repositories (2026) · Open Source Tools

Write like nobody’s watching. Because they aren't.

Local-first like Obsidian, polished like Notion. Free & open source: wiki links, slash commands, to-dos, local or cloud sync, and MCP for AI. Web + Mac.

The open-source workspace for people and AI agents. Docs, databases and realtime collaboration with an MCP server in the same binary, so agents work in the same workspace on the same permissions. One Go binary, one SQLite file, self-hosted.

One private place for everything on your mind. Capture it, write it, plan it. Notes, tasks, inbox and journal, end-to-end encrypted.

Minimalistic note taking: save and edit your clipboard content as a note file (Gitlab mirror)

Star if Papyra keeps your notes yours! A self-hosted, Google Keep-style notes app where every note is a plain Markdown file on your disk. Live collaboration, passkeys, encrypted locked notes, full-text search and one-container Docker setup. Crafted with 💗 for people who want their notes without lock-in.

Minimalistic, lightweight markdown knowledge base app for macOS and Linux. Open source Obsidian alternative.

Handwritten notes and a whiteboard in your browser. Write with a pen, keep the pdf next to your notes. No account, nothing leaves the browser.

Notes for iPhone and Mac that ChatGPT, Claude, Claude Code and Codex can read and edit. Feels like Apple Notes, imports it too. Open source, encrypted.

Handwritten Notes & eReader App with Stylus support

The best way to publish your scientific knowledge. Source code for the entire OurBigBook Project: OurBigBook.com, ourbigbook CLI and the VS Code extension. A powerful static wiki generator and lightweight markup language to write complex structured wikis/books/blogs with multi-user mind-melding magic 🧙