Notes GitHub Repositories (2026) · Open Source Tools

Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.

End-to-end encrypted notes, tasks, files, passwords, journal and bookmarks. Keyed by a 12-word BIP-39 phrase: no email, no password, no account to leak. The full client source for web, desktop and mobile is published, along with the encryption (XChaCha20-Poly1305, HKDF-SHA256, Ed25519) and the threat model, so the privacy claims are falsifiable.

Memos is an open-source, self-hosted note-taking app that brings your everyday thoughts together in a personal timeline. Your data stays yours, and you choose what to keep private or share.

Beautiful, AI-native markdown IDE and LLM wiki

Build your personal knowledge base with Trilium Notes

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.

Powerful note-taking without the hassle.

A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.

Note taking and organization; an open-source, clean-room reimplementation of Microsoft OneNote, rebuilt in pure Rust

QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.

Selfhosted notes app. Single golang binary, notes stored as markdown within SQLite, full-text search, very low resource usage

Koru is an open-source, local-first workspace for managing notes, documents, tasks, and collaborating with AI agents. Work offline and sync securely across devices using encrypted P2P, self-hosted sync (free, coming soon) or optional cloud sync (paid)

A lightweight, local-first Markdown note app for Android.

💻 Democratizing Snippet Management (macOS/Win/Linux)

SilentNotes is a simple note taking app which respects your privacy.

🤪 A list of funny and tricky JavaScript examples

A fully open source & end-to-end encrypted note taking alternative to Evernote.

Sketch and take handwritten notes.

HedgeDoc - Ideas grow better together

Lazy markdown notes, tasks and a Kanban board in your terminal. With a sleepy sloth.