What is Markdown Editor?
A split-pane editor with instant HTML preview. Supports GitHub Flavored Markdown: tables, task lists, code blocks with syntax highlighting. Export as HTML or copy the rendered output.
Rendering uses a GitHub-flavored parser that handles fenced code blocks with language hints (javascript, python, css, and so on), task lists with checkbox state, pipe tables, footnotes, and strikethrough. The toolbar drops in syntax for headings, bold, italic, link, image, code, and table at the cursor position. The export produces a self-contained HTML file with embedded styles, ready to attach or upload.
How to use
- Write or paste your Markdown content in the left editor pane — the preview updates in real time on the right.
- Use the toolbar for quick formatting: bold, italic, headings, links, images, code blocks, and tables.
- Export your document as clean HTML, copy the rendered preview, or download the raw Markdown file.
When to use
- Drafting a README or contributing guide where you want to see the rendered output as you type.
- Writing a blog post in Markdown before pasting the HTML into a CMS that doesn't have a Markdown editor.
- Cleaning up meeting notes — headings for sections, task list for action items, table for decisions.
Result
You're writing a project README — add headings, a feature list, a code block with JavaScript highlighting, and an installation table. The preview shows the rendered result as you type, and you can export the final HTML.
FAQ
- Does it support syntax highlighting inside code blocks?
- Yes. Fenced code blocks accept a language identifier after the opening backticks (```javascript, ```python, ```bash, and so on). The preview applies highlight.js styling. Unknown or omitted languages render as plain monospaced text without color.
- Will my Markdown be saved if I refresh the page?
- Yes. Every keystroke is auto-saved to your device, and the draft is restored the next time you open the page — even after a refresh or accidental tab close. A small banner confirms when a saved draft was loaded. Hit Reset (or clear the editor) to wipe the saved copy.
- Can I paste a screenshot directly into the editor?
- Yes. Paste an image or screenshot and it's embedded straight into the document as a base64 data URL, with the Markdown image syntax dropped in at the cursor. One caveat: data URLs make the file large and most platforms (including GitHub READMEs) won't render them, so for anything you plan to share, hosting the image and pasting its link into  keeps the source lean.
- What's the difference between exporting HTML and copying the rendered preview?
- Export HTML produces a full document with <html>, <head>, embedded CSS, and your content as <body>. Copying the rendered preview gives just the inner HTML fragment, which is what you usually paste into a CMS that already wraps your content in its own template.
- Why doesn't my single line break show up in the preview?
- Standard Markdown treats single line breaks as soft wraps inside a paragraph. To force a line break add two trailing spaces at the end of the line, or leave a blank line for a new paragraph. This matches how GitHub and most static-site generators behave.
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