







An offline-first, open source markdown note-taking app. No cloud, no account, no subscriptions.
outl — local-first markdown outliner & LLM second brain
Open-source bullet-point outliner. Plain markdown on disk (no UUIDs), peer-to-peer tree-CRDT sync that doesn't lose data when devices edit offline — your devices talk straight to each other, end-to-end encrypted, no cloud or third-party server holding your notes — and an MCP server so Claude, Cursor and ChatGPT use your notes as a second brain. A modern Roam, Logseq and Obsidian alternative built in Rust.

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 …

Antinote — a $5 scratchpad for macOS
Antinote is a fast macOS scratchpad for temporary notes and inline math. Opens on a global hotkey, strips formatting on paste, converts currencies and units. $5 once, lifetime updates, macOS 14+.
iA Writer: The Benchmark of Markdown Writing Apps
Plain text. Total focus. The Industry standard Markdown text editor. Available for Mac, iPhone, iPad, Android, and Windows. Download it now, try it for free

mdnb — A Markdown Notebook for macOS
A native macOS notebook app. Your notes are plain Markdown files on disk, yours forever. Free.

HackMD: Your Collaborative Markdown Workspace for Knowledge Sharing
HackMD gives you a real-time Markdown editor for collaborative work. Working with Markdown files in HackMD is simple, straightforward, and fun.

Markdown | Codecademy
Markdown is a lightweight markup language for creating formatted text using a plain-text editor.

BlockNote - Javascript Block-Based React rich text editor
A beautiful text editor that just works. Easily add an editor to your app that users will love. Customize it with your own functionality like custom blocks or AI tooling.

HelixNotes | Local Markdown Notes
A local markdown note-taking app. Plain .md files on your disk. Sync them your way, or don't.

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.
Sublime Text - the sophisticated text editor for code, markup and prose
Available on Mac, Windows and Linux

Supernote - Go Paperless with Our Digital Note-Taking Solution
Supernote is a modern E-Ink tablet and digital notebook designed for handwriting, note-taking, and sketching. Shop Supernote online today.

Astro Editor — A focused markdown editor for Astro content collections
Astro Editor is a native, distraction-free markdown editor that reads your Astro content collection schemas and turns frontmatter into clean, schema-aware forms. For writer mode, not coder mode.

Patchwork Notebook
Internal notes from our ongoing research into soft, softer and softest software

Own the source. Compose with anything. - The Way of Markdown
Websites, knowledge bases, blogs, even a Notion replacement — built from plain text files you own, with tools you can swap anytime. Markdown is quietly everywhere; here's the way to make it work for you.


OmniCanvas - Free Infinite Canvas Notes App
Best Notes App - Write and Organize with UpNote
Antinote — a $5 scratchpad for macOS

NotePlan – Notes, Tasks and Calendar in One Daily Note

Let your thoughts sink in — Gravity
Knowledgebase Apps (by Boris) — Semble