Live Markdown Editor

View and edit Markdown files with live preview, outline and light/dark themes.

Live Markdown Editor is a fast, modern Markdown editor that runs entirely in your browser. ★ THREE VIEWS • Edit — distraction-free writing • Split — editor and preview side by side, scrolled together • Preview — clean, readable rendering • Focus mode — hide everything but your text, full screen ★ RICH PREVIEW • Live preview as you type, with GitHub-style tables, task lists and code highlighting • Mermaid diagrams (flowcharts, sequence diagrams and more) • Math formulas: $inline$ and $$display$$ • GitHub alerts (> [!NOTE], [!TIP], [!WARNING]…), footnotes and YAML front matter • Three syntax color styles: Default, GitHub and One ★ WRITING TOOLS • Formatting toolbar, emoji picker and keyboard shortcuts • Find & replace with match case, whole word and regular expressions • Table editing: Tab between cells, auto-align columns, add or remove rows and columns • Paste or drop images straight into your document (embedded, no extra files) • Optional Vim keybindings ★ FILES • Open several files at once — each in its own tab • Save directly to the original file, Save as, or Download • Recent files on the start screen • Your open files and unsaved changes come back after you close the tab or restart the browser • Export as a standalone HTML file, copy as rich text for docs and email, or print / save as PDF • Outline sidebar built from your headings, with full-text search (accent-insensitive) ★ PRIVATE BY DESIGN • Works fully offline — no account, no tracking, no analytics • Your files never leave your computer • Open documents and the recent files list are kept only on your device (you can turn this off) • Only one permission: storage (to remember your settings) ★ HOW TO USE 1. Click the extension icon → Open Markdown Editor 2. Open or drag & drop .md files 3. Edit, preview and save Enjoying the extension? You can support development via Buy Me a Coffee, PayPal or MoMo (links in Settings → Support).