Note Taking GitHub Repositories (2026) · Open Source Tools

🔥 PlainApp is an open-source app that lets you securely manage your phone from a web browser. Access files, media, contacts, SMS, calls, and more through a simple, easy-to-use interface on your desktop.

An approachable incremental reading app.

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

A desktop app for Markdown notes. Write, search, link notes, and keep every file in your own folder.

A pleasant note-taking platform with native speed, majoring in Markdown, MindMap, Typst, and plain text.

Encrypted notebook

📝 Glyph is a private desktop workspace for notes, documents, and ideas, with Markdown editing and built-in AI tools.

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

TagSpaces is an offline, open source, document manager with tagging support

Your web application for managing personal data.

A plain text note-taking assistant

Markdown knowledge graph — LSP for your editor, CLI + MCP memory for your AI agents

Lightweight Knowledge Base and Feed Reader.

Karpathy's LLM Wiki implementation plugin for Obsidian - turns notes and PDFs into a linked, LLM-powered knowledge base with entity pages, concept pages, graph-powered Q&A, and local-first privacy.

Glass Keep is Keep Notes alternative using Glass design. Docker Server, Tauri Clients and PWA

Feature-packed TUI note management app inspired by Obsidian

Terminal-based markdown note manager.

Google Keep-style notes for iOS, Android, and self-hosting. Offline-first, with optional sync.

Open-source AI meeting notes for Mac. Records mic + system audio with no bot, transcribes on-device or via OpenAI / Deepgram / Groq, identifies speakers offline, and writes summaries that fuse your notes with the transcript. Ask your notes and get cited answers. Tauri 2 + Rust + Swift.

Memospot is a self-contained desktop version of Memos -a privacy-first, lightweight note-taking service.