Markdown Previewer
Write markdown on the left, watch it become HTML on the right — live. Then copy the markup for your blog, README, or notes.
Everything stays in your browser. Nothing is uploaded or stored.
How to preview markdown as HTML
Markdown is the plain-text shorthand behind READMEs, Reddit comments, and most blogging platforms — but raw markdown is hard to proofread. A markdown previewer shows you the finished page while you write, so headings, links, and tables look right before you publish.
- Type or paste your markdown on the left. The preview updates as you type — no button to press.
- Check the rendering. Headings get real sizes,
**bold**gets bold, and| tables |get borders. - Copy the HTML. Press "Copy HTML" to grab the exact markup the preview shows, ready for your blog, CMS, or email.
- Iterate fast. Your draft autosaves in your own browser, so you can close the tab and pick up where you left off.
Why write in markdown first?
Markdown keeps your hands on the keyboard — no mouse-diving through formatting menus. Writers draft faster in plain text, and because the source is just text, it plays nicely with version control, note apps, and static-site generators. The preview is your safety net: what you see is what your readers will get.
What is a markdown previewer?
A markdown previewer renders markdown text as formatted HTML instantly, so you can see exactly what your README, blog post, or notes will look like before you publish them.
How does this live markdown editor work?
Type or paste markdown on the left and the preview on the right updates as you type. Hit Load example to see every supported feature, or Copy HTML to grab the markup for your blog, CMS, or email.
Does this tool convert markdown to HTML?
Yes — every keystroke is parsed into HTML in your browser. The Copy HTML button copies the exact markup shown in the preview, ready to paste anywhere.
Which markdown syntax is supported?
Headings, bold, italic, bold+italic, inline code, fenced code blocks, bulleted and numbered lists, links, tables, blockquotes, and horizontal rules — enough for READMEs, notes, and blog drafts.
Is my markdown sent to a server?
No. Everything is parsed by JavaScript on your own device. Nothing is uploaded, stored, or tracked.
Is raw HTML in my markdown safe?
Yes — any HTML you type is escaped and shown as plain text, so nothing you paste can run scripts or break the page.
Kept alive by readers like you
Every tool in the codex is free. If they save you time, a small donation inscribes new pages.
DonateMore from the codex
Markdown Previewer
Type markdown, see the HTML instantly.
Story Time Read-Aloud
Over 1,000 public-domain children's stories read aloud for the classroom.
Open tool → LiveJSON Formatter
Validate, format, and minify JSON.
Open tool → LiveWord Counter
Count words and estimate reading time instantly.
Open tool → LiveCase Converter
UPPER, lower, Title Case and more.
Open tool → LiveLorem Ipsum Generator
Placeholder text by paragraph or word.
Open tool → LiveText-to-Speech Reader
Hear any text read aloud for proofreading.
Open tool → LiveFancy Text Generator
Bold, italic, script and 12 more unicode styles.
Open tool →