GitHub - BoostIO/BoostNote-Legacy: This repository is outdated and new Boost Note app is available! We've launched a new Boost Note app which supports real-time collaborative writing. https://github.com/BoostIO/BoostNote-App

GitHub issues for notes

GitHub issues is almost the best notebook in the world. Free and unlimited, for both public and private notes. Comprehensive Markdown support, including syntax highlighting for almost any language. Plus …

Treehouse: Note-taking Frontend

An open source note-taking frontend to extend and customize. Bring your own backend or configure a built-in backend to get started.

Notesnook | Open source & zero knowledge private note taking app

Express yourself with freedom, no spying, no tracking — only private notes. Unlike Evernote and other note apps, your data is private — not open for everyone to see.

Reflection — Modal Collective

Reflection is a native GTK note taking app with local-first collaboration built on p2panda. It’s part of a broader initiative to make local-first sync a standard feature of the GNOME developer platform, and allow any app developer to easily add local-first sync to their app. You can learn more about the project from these blogposts: Apr 2026 – The Road to a Local-First App Ecosystem Apr 2026 – Reflection Spring 2026 Update Dec 2025 – Reflection Winter 2025 Update Aug 2025 – GUADEC 2025 Jun 2025 – Aardvark Summer 2025 Update Dec 2024 – Introducing Project Aardvark Nov 2023 – GNOME+p2panda Workshop Sep 2023 – GNOME 45 Hackfest Current Status Reflection is available as a preview release. We’re waiting for p2panda 1.0 before doing a stable release to avoid potentially difficult data migrations.

Fast Note Sync

Real-time sync of your vaults across server, mobile, and web; shareable with anyone; supports REST and MCP integrations to build your personal AI knowledge base.

Peersky Browser (@peersky@mastodon.social)

Attached: 1 image 📝 v1.0.0-beta.20 — Introducing P2PMD A real-time peer-to-peer Markdown editor for notes and collaboration that syncs directly between peers, with no servers in the middle. Release: https://github.com/p2plabsxyz/peersky-browser/releases/tag/v1.0.0-beta.20 #PeerSky #p2pmd #markdown

Mark Kretschmann on Twitter / X

ChatGPT is going to merge into the Codex app! 🔥This was confirmed by an engineer of Codex at @OpenAI. The combined “super app” will bring together the more casual, general-purpose ChatGPT experience with the coding-focused power of Codex. In other words, one app for chatting,… pic.twitter.com/5Cfrm4ETj4— Mark Kretschmann (@mark_k) May 2, 2026

Reflect

A beautifully minimalist note-taking app designed to mirror the way you think. Now with a native AI integration.

deepnote/deepnote

Deepnote is a drop-in replacement for Jupyter with an AI-first design, sleek UI, new blocks, and native data integrations. Use Python, R, and SQL locally in your favorite IDE, then scale to Deepnote cloud for real-time collaboration, Deepnote agent, and deployable data apps. https://deepnote.com/

Introducing Whisper – an open source voice note taking app! Record voice notes and transcribe them into lists, blogs, & more with AI. 100% free & open source. https://t.co/UZWGkUDJ6d

Introducing Whisper – an open source voice note taking app!Record voice notes and transcribe them into lists, blogs, & more with AI.100% free & open source. pic.twitter.com/UZWGkUDJ6d— Hassan (@nutlope) July 22, 2025

Collaborative Editor Demo App

Scratch – A minimalist markdown scratchpad

An offline-first, open source markdown note-taking app. No cloud, no account, no subscriptions.

Bluenotes

Bluesky with Community Notes. This a fully-featured clone of the main Bluesky frontend, but with Community Notes!

Note-ifying all the things (with Boris Mann)

Conversation about note-taking, the overwhelm of tools, and future possibilities. (shortlink:…

Agenda - Notes meets Calendar

Organize your days with Agenda, the Apple Design Award winning note taking app. Download for free and start getting things done today!