Free Online Markdown Editor with Live Preview, Dark Mode, and GFM Support

MD Editor Free
by Rabindra
Editor
Ctrl+B · Ctrl+I · Ctrl+K
Preview
Not saved
0 words · 0 chars · 0 lines
GFM · Local · Private

Frequently Asked Questions

Everything about MD Editor — scroll below the editor to read.

MD Editor is a free, browser-based Markdown editor with real-time HTML preview. It supports GitHub Flavored Markdown (GFM), dark/light mode, scroll sync, find & replace, and export to .md or .html. Nothing leaves your device — all processing happens locally in your browser.
Yes — your content is auto-saved to your browser's localStorage every 500ms as you type. It is automatically restored when you return. No account or cloud sync required. Note: clearing browser data will erase saved content.
MD Editor uses GitHub Flavored Markdown (GFM) via Marked.js. Supported: headings H1–H4, bold, italic, strikethrough, ordered & unordered lists, task lists, fenced code blocks with syntax highlighting, tables, blockquotes, horizontal rules, links, images, and inline code.
  • Ctrl+B — Bold
  • Ctrl+I — Italic
  • Ctrl+K — Insert link
  • Ctrl+F — Find & Replace
  • Tab — Indent 2 spaces
  • Escape — Close Find bar
Click the Export button in the toolbar:
  • Copy Markdown — raw .md to clipboard
  • Copy HTML — rendered HTML to clipboard
  • Download .md — saves Markdown file
  • Download .html — standalone HTML with styles baked in
Click Find or press Ctrl+F. Enter your search term and optional replacement. Use ↑/↓ to navigate matches, Replace to replace the current match, All to replace all. Press Escape to close.
Yes — click Upload and select any .md, .markdown, or .txt file. Content loads directly into the editor. Your file is never sent to a server — read entirely in your browser via the File API.
MD Editor is 100% client-side — no data is transmitted to any server. Your content lives only in your browser's memory and localStorage. No tracking, no analytics, no account required. Works offline once loaded.
When enabled, preview output is passed through DOMPurify, stripping unsafe HTML (<script> tags, event handlers, etc.). Useful when pasting content from untrusted sources. Disabled by default for full GFM flexibility.
In Split view, editor and preview sync by scroll percentage. Scrolling one panel proportionally scrolls the other. This gives a close positional match for most documents without needing a full AST-based approach.