Developer Tools
Markdown Live Preview
Write Markdown and watch a clean live HTML preview update as you type, instantly.
Supports # headings, **bold**, *italic*, `code`, ``` code blocks, [links](url), - and 1. lists, > quotes, and --- rules.
What is Markdown live preview?
Markdown is the plain-text formatting language behind README files, blog platforms, chat apps, and documentation sites: # for headings, **bold**, *italic*, backticks for code, and simple list markers. A live preview renders that plain text as formatted HTML the moment you type it, so you can see exactly what readers will see without a build step. This tool pairs an editor and preview side by side (stacked on mobile) with its own small parser — no libraries, no server round-trips — and can copy the generated HTML for pasting into a CMS or blog.
How to use this tool
- Type or paste Markdown into the left-hand editor.
- Watch the right-hand pane update instantly with the rendered result.
- Press Copy HTML to copy the generated markup for use elsewhere.
- Press Clear to start over.
Key features
- True live rendering on every keystroke — no button presses, no delays.
- Supports # / ## / ### headings, **bold**, *italic*, inline `code`, fenced ``` code blocks, [text](url) links, - and 1. lists, > blockquotes, and --- horizontal rules.
- HTML-escapes your input before rendering, so typed markup can never execute as code — the preview is XSS-safe.
- Links are protocol-checked (http, https, mailto, relative) and open in a new tab with rel="noopener".
- Copy-generated-HTML button for moving content into WordPress, Ghost, or any CMS.
Common use cases
- README files: drafting project documentation with instant visual feedback.
- Blogging: writing posts in Markdown, then copying the HTML into a CMS.
- Learning Markdown: seeing immediately what each syntax element produces.
- Notes and docs: quick formatted writing without a heavy editor.
- Chat and forum posts: pre-checking formatting before posting somewhere that renders Markdown.
Practical tips
- Put a blank line before and after lists, code blocks, and quotes — the parser treats blank lines as block boundaries.
- For nested formatting, apply code spans first in your head: anything inside backticks is never parsed as bold or italic.
- Links need both parts — [text](url) with no space between ] and ( — or they render as plain text.
- Use ### sparingly: deep heading hierarchies are harder to scan than two or three levels.
- This is a deliberately small parser covering the most-used syntax; for tables, footnotes, or task lists, use a full Markdown library.
Frequently Asked Questions
Which Markdown syntax is supported?
#, ##, and ### headings, **bold**, *italic*, inline code, fenced code blocks, links, bulleted and numbered lists, blockquotes, and --- horizontal rules — the most commonly used subset.
Is the preview safe from script injection?
Yes. All input is HTML-escaped before any formatting is applied, so typed <script> tags render as visible text and can never execute. Links are also restricted to safe protocols.
Why does my list not render?
Lists need a blank line before them and a marker followed by a space ('- item' or '1. item'). Without the space, the line is treated as a plain paragraph.
Can I copy the rendered HTML?
Yes — the Copy HTML button copies the generated markup, ready to paste into WordPress, Ghost, or any system that accepts raw HTML.
Does this support Markdown tables?
No. This is a compact parser for everyday writing. Tables, footnotes, and task lists need a full-featured Markdown library.