Skip to content
MySafeToolbox

Markdown Preview

Free online Markdown editor with live preview. Supports GitHub-flavored tables, task lists and code, plus a formatting toolbar and HTML export. Fully private.

  • No upload — 100% private
  • Instant, on your device
  • Free, no sign-up
  • Works offline once loaded

How it works

How to use Markdown Preview

  1. Type Markdown on the left or open a .md file.

  2. Use the toolbar or Ctrl/⌘ + B, I, K and E for bold, italic, links and code.

  3. Watch the rendered preview update live on the right (use the Write / Preview switch on mobile).

  4. Copy the HTML or download your document as .md or a standalone .html page.

Why use it

Why use our Markdown Preview tool

Live preview

Rendering updates as you type, styled like a polished article in light or dark mode.

GitHub-flavored Markdown

Tables, task lists, strikethrough, fenced code blocks and autolinks are all supported.

Formatting toolbar

Bold, italic, headings, links, code, lists, tasks and quotes with keyboard shortcuts and undo.

Safe HTML

Output is sanitised with DOMPurify, so pasted scripts or malicious HTML can't run.

Export anywhere

Copy clean HTML, or download .md and a ready-to-share standalone .html file.

FAQ

Frequently asked questions

What is GitHub-flavored Markdown?

GFM is GitHub's extension of standard Markdown. It adds tables, task list checkboxes, strikethrough with ~~text~~, fenced code blocks and automatic links.

How do I convert Markdown to HTML?

Write or paste your Markdown, then click Copy HTML for the HTML fragment, or download .html to get a complete page with basic styling.

Is raw HTML allowed in my Markdown?

Yes, safe HTML such as <details> or <kbd> renders. Scripts, event handlers and other dangerous markup are stripped by DOMPurify.

Is my document saved or uploaded?

No. Everything runs in your browser and nothing is sent to a server. Download your .md file to keep a copy.

Can I use it to write a GitHub README?

Yes. The preview follows GitHub-flavored Markdown closely, so tables, task lists and code blocks look the way they will on GitHub.

Related tools

popular

Word Counter

Count words, characters, sentences and reading time.

Diff Checker

Compare two texts side by side with word-level highlights.

popular

JSON Formatter

Beautify, validate, minify and explore JSON as a tree.

popular

Case Converter

UPPERCASE, Title Case, camelCase, snake_case and more in one click.

popular

Base64 Encode & Decode

Encode or decode Base64 text, files, images and data URIs.

URL Encode & Decode

Percent-encode, decode and edit URL query parameters.

Hash Generator

MD5, SHA-1, SHA-256, SHA-512 and HMAC for text or files.

UUID Generator

Generate v4 and v7 UUIDs in bulk, then validate and decode.