A zero-backend markdown editor and viewer. The document lives entirely in the URL — share a link, share the content. No database, no accounts, no server-side storage.
The markdown is LZ-compressed and stuffed into the URL fragment (#...). Because fragments never leave the browser, the content stays client-side. Opening a link decodes the fragment and renders it in view mode; without a fragment, the app boots in edit mode with a default README.
- Source editor with CodeMirror (markdown syntax highlighting, one-dark theme)
- Rich editor with Tiptap
- Split source + live preview
- Sanitized HTML output via DOMPurify
- Copy, download as
.md, or copy a share link - Wide / narrow layout toggle, light / dark theme
- Keyboard shortcuts:
Cmd/Ctrl + E— toggle view / editCmd/Ctrl + S— copy share linkCmd/Ctrl + Shift + C— copy markdown
npm install
npm run dev # vite dev server
npm run build # type-check + production build
npm run preview # serve the production build locallyReact 19, TypeScript, Vite, Mantine, Tiptap, CodeMirror, marked, dompurify, lz-string.
MIT — see LICENSE.