Markdown Editor

What this tool does

The Markdown Editor is a writing surface for anyone who composes in Markdown. On the left you type the Markdown source; on the right a live preview shows exactly how it will look once rendered, updating with every keystroke. A toolbar across the top inserts common syntax for you, a running word and character count sits at the bottom, and your document is saved to the browser automatically so you never lose your place.

It loads with a short sample document so the editor is never blank — you can read through the sample to refresh your memory of the syntax, then clear it and start your own writing.

This tool is deliberately separate from two neighbours. The Markdown to HTML converter is a one-shot converter for Markdown you have already written. The Notes tool is a plain-text scratchpad. This editor is the middle ground: a calm place to actually write a formatted document and watch it take shape.

When you would use it

Writers and creators reach for this whenever they are drafting something structured. A blog post or newsletter that will end up on a Markdown-powered site. README and documentation files for a project. Class notes or a handout that needs headings and bullet points. A changelog, a meeting agenda, a recipe, a short story outline. Anywhere Markdown is the destination format, drafting it here means you see the finished shape as you write rather than guessing.

It is also useful for learning Markdown. Because the preview reacts instantly, you can experiment — type two asterisks, watch the bold appear, try a heading, add a list — and build an intuition for the syntax in a few minutes.

How to use it

1. The editor opens with a sample document. Read it, then clear it or type over it to begin your own writing.
2. Type Markdown in the left panel. The right panel renders it live.
3. To format text, select it and click a toolbar button — Bold, Italic, Heading, Link, List, Code, Quote, Image or Table. The button wraps the correct syntax around your selection. With nothing selected, it inserts a placeholder you can type over.
4. Keep an eye on the word and character count beneath the editor.
5. When you are done, use Copy Markdown to put the source on your clipboard, Download .md to save an editable file, or Download .html to save a finished, styled web page.
6. Use Clear (it asks for confirmation) to wipe the document and start fresh.

Tips for great results

Write the structure first. Lay down your headings as a quick outline, then fill in the prose underneath each one — the live preview makes it easy to see whether the document flows.

Use fenced code blocks for anything that should be monospaced, not just code: file paths, commands and short data samples all read better that way.

For tables, click the Table button to drop in a starter grid, then edit the cells. Markdown tables do not need their columns perfectly aligned in the source — the preview tidies them up.

Because the autosave is per-browser, download a .md copy whenever you reach a milestone. That gives you a real file you can back up, version-control or open elsewhere, independent of this browser.

Privacy

Everything in this editor happens on your device. The Markdown is rendered to HTML by JavaScript running in your browser, and the autosaved copy lives only in this browser’s local storage. Nothing is uploaded, nothing is logged, and there is no account. Your drafts stay with you — close the tab and the only copies are the ones you chose to download.