Markdown editor · local-first · PWA
Markdown. Stay in flow.
A fast, quiet Markdown editor that runs in your browser and installs like an app. Write offline by default — sign in only when you want cross-device sync or editable collaboration.
markbird
A fast, local-first Markdown editor that lives in your browser.
- Type on the left, see it render on the right
- Works offline, installs as an app
- Your notes stay on your device
GitHub-flavored
| Feature | Ready |
|---|---|
| Tables | yes |
| Alerts | yes |
const hello = (name: string) => `Hi, ${name}`;
NOTE
Try editing this — it's the real editor.
Editing your way
Side-by-side, or one pane at a time.
Write with a live preview beside you and synced scrolling, or switch a single pane between code and rendered view. Your cursor and scroll stay put when you flip.
Yours, and offline
Write offline. Sync when you want.
Your documents stay in your browser unless you enable sync or sharing. Core editing, local search, and export all work with no connection — sign in only for cross-device sync. Install it as an app on Mac, iPhone, Android, and Windows.
Real GitHub-flavored Markdown
Everything you'd expect — and the hard parts too.
Tables, task lists, and syntax-highlighted code, plus Mermaid diagrams, KaTeX math, footnotes, and GitHub alerts. One pipeline renders your preview and every export, so they never disagree.
What it renders
Tables, task lists, and code — exactly like GitHub.
| Feature | Status |
|---|---|
| Tables | ✓ |
| Task lists | ✓ |
| Code + math | ✓ |
- Tables and task lists
- Mermaid diagrams and KaTeX math
- Your next note
TIP
Mermaid diagrams, footnotes, and GitHub alerts all render here.
export const render = (md: string) => pipeline.process(md);
A connected set of notes
Notes that know about each other.
Link notes with [[wiki links]], embed one inside another, tag them inline or in frontmatter, and see what points where in the link graph. All of it lives in the Markdown itself — so a note means the same thing here, on disk, and in any other editor.
- [[Wiki links]], aliases and embeds
- Backlinks — see what points here
- Tags in frontmatter or inline as #tag
- Link graph and orphan notes
- Daily, weekly and monthly notes
Export anywhere
Take your writing with you.
Export a self-contained HTML file, a print-quality PDF, or a Word document. HTML and PDF are generated on your device from the same rendered output; Word export uses our EU server while you are online, for native equations and footnotes.
Works with Claude
Send Markdown from Claude, in one click.
An artifact, a chat answer, a file written by Claude Code — send it straight to your library. The document travels in the URL fragment, which browsers never transmit, so it is decoded in your browser: nothing is uploaded, no account is needed, and it works offline.
Private by design
Private by default. Accounts optional.
markbird needs no sign-up to start and shows no ads or analytics. Anonymous documents stay in your browser until you sign in for sync or create a share.
- No sign-up to start
- No ads, no analytics
- Anonymous docs stay in your browser
- Optional sync & sharing when you want them
Start writing.
Open markbird in your browser, then install it as an app from your browser's menu.
Free to use today. Optional cross-device sync and collaboration may become a paid plan later.