📝 Markdown Preview
Type markdown and see live HTML rendering instantly.
What is this tool?
The Markdown Preview tool is a free online markdown editor that renders your markdown into HTML in real time. As you type on the left side, the formatted result appears instantly on the right side. This is perfect for previewing README files, blog posts, documentation, or any markdown content before publishing. Markdown is a lightweight markup language that uses plain text formatting to create structured documents. It was created by John Gruber in 2004 to make writing for the web as easy as possible. With markdown, you can create headings, bold and italic text, lists, links, images, code blocks, tables, and more, all using simple text symbols. Markdown is used everywhere: GitHub READMEs, Reddit comments, Discord messages, documentation sites, and many content management systems. This previewer supports standard markdown syntax including GitHub Flavored Markdown (GFM) extensions like task lists, strikethrough text, and code syntax highlighting. Everything runs entirely in your browser, so your content never gets uploaded to any server. You can write with confidence knowing your drafts are completely private.How it works
The tool uses a JavaScript markdown parser that converts your text into HTML in real time. As you type in the editor panel, the parser processes the markdown syntax character by character and generates the corresponding HTML elements, which are displayed in the preview panel. The parser handles all standard markdown elements: headings (# to ######), bold (**text**), italic (*text*), links ([text](url)), images (), unordered lists (- or *), ordered lists (1.), code blocks (```), inline code (`code`), blockquotes (>), horizontal rules (---), and tables. It also supports GitHub Flavored Markdown extensions: task lists (- [x]), strikethrough (~~text~~), and automatic URL linking. The rendering is completely client-side, meaning no server calls are made. The markdown parser is a well-tested JavaScript library that handles edge cases like nested lists, multiple paragraphs in list items, and code blocks within lists. The preview updates on every keystroke for a truly live editing experience.How to use
- Type or paste your markdown in the editor on the left.
- Watch the formatted HTML preview update in real time on the right.
- Use standard markdown syntax (# headings, **bold**, *italic*, etc.).
- Try GitHub Flavored Markdown: task lists, tables, strikethrough.
- Copy the rendered HTML or your markdown source as needed.
Frequently Asked Questions
Frequently Asked Questions
What markdown syntax is supported?
Standard markdown (headings, bold, italic, lists, links, images, code, blockquotes, tables) plus GitHub Flavored Markdown extensions (task lists, strikethrough, auto-links, code syntax highlighting).
Is my markdown content sent to a server?
No. All processing happens in your browser using JavaScript. Your content never leaves your device, ensuring complete privacy for your drafts and notes.
Can I use this for GitHub README files?
Yes. This previewer supports GitHub Flavored Markdown, which is the same dialect used by GitHub. Task lists, tables, strikethrough, and code blocks will render the same way they do on GitHub.
How do I create a table in markdown?
Use pipes (|) to separate columns and hyphens (-) for the header row. Example: | Header 1 | Header 2 | \n|---|---| \n| Cell 1 | Cell 2 |
Tips & Advice
Markdown is designed to be readable as plain text, even before rendering. Use headings (#) to create document structure, and keep heading levels consistent. For code blocks, always specify the language after the triple backticks (```python) to get syntax highlighting. When creating tables, align the pipes vertically for readability. Task lists (- [x] done, - [ ] todo) are great for project tracking in READMEs. If you are writing for GitHub, preview your markdown here first to catch formatting issues before pushing. For long documents, use a table of contents with anchor links. Remember that two spaces at the end of a line create a hard line break in markdown.