Marker is an open-source, user-friendly UI for writing & editing markdown files. Everything you create lives in your filesystem.
Marker — Read with intention
A reading and annotation browser for iOS and Android. Select text, create highlights, attach notes, and keep annotations on device.
Markdown Guide
A free and open-source reference guide that explains how to use Markdown.
Scratch – A minimalist markdown scratchpad
An offline-first, open source markdown note-taking app. No cloud, no account, no subscriptions.
Markdown | Codecademy
Markdown is a lightweight markup language for creating formatted text using a plain-text editor.
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.
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.
FacilMap
A fully-featured OpenStreetMap-based map where markers and lines can be added with live collaboration.
HelixNotes | Local Markdown Notes
A local markdown note-taking app. Plain .md files on your disk. Sync them your way, or don't.
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
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.
Publish Markdown as a Website — Blogs, Docs & Knowledge Bases | Flowershow - Flowershow — Publish Markdown as a Website
Turn markdown files into beautiful websites in seconds. Publish Obsidian vaults, blogs, docs, and knowledge bases — free, no coding required.
leaf : Terminal Markdown previewer — GUI-like experience.
leaf renders Markdown files with rich formatting, syntax highlighting, LaTeX math, Mermaid diagrams, and more — all without leaving your terminal.
Highlighters
Realistic, customizable highlighter-pen marks for the web. Bindings for React, Vue, and Svelte.
