Live Markdown Editor & Preview Tool — side-by-side editing for README files, docs, and notes

If you work with README files, documentation, or dev notes, you already know how helpful a good Markdown editor with live preview can be. This tool gives you a clean, split-pane interface: you write Markdown on the left and see the rendered result on the right, updated instantly with every keystroke. No build step, no browser refresh, just a fast feedback loop while you write.

The editor supports GitHub Flavored Markdown (GFM), so common patterns like tables, task lists, and fenced code blocks render exactly how you expect them to look on GitHub or other dev platforms. That makes it a handy place to draft README files, contribution guides, changelogs, and internal docs before you paste them into your repository or documentation system.

A simple toolbar helps when you don’t feel like typing every symbol from memory. Use it to insert bold and italic text, headings, links, lists, quotes, inline code, and fenced code blocks. If you’re building tables, you can quickly sketch them out in the editor and fine-tune the pipes and dashes in plain text. Because this is all just Markdown, it stays readable even in the raw view.

You can treat the tool as both an editor and a Markdown viewer online. Drag and drop a .md file, choose one via the file picker, or just paste Markdown from your clipboard. The preview pane becomes an instant Markdown reader, which is useful when you don’t want to open a full IDE just to skim a README or a note.

When you’re done editing, you have a few export options. Copy the raw Markdown back into your project, or copy the rendered HTML if you need to drop it into a CMS or static site that expects HTML instead of Markdown. You can also download your work as both .md and .html files with one click, which makes it easy to keep local backups or share drafts with teammates.

For writers and designers, built-in word, line, and character counters give you a quick sense of length without switching tools. That’s handy when you’re drafting docs, microcopy, or UX text that needs to fit in a specific space. If you’re pulling content from other sources, you can clean it first with the Advanced Text Cleaner and then format it in Markdown here.

Privacy is built in. This Markdown editor in browser runs entirely on your device, so your files, drafts, and notes never touch a server. There’s no login, no sync account, and no background upload — just a fast editor and preview you can open in any modern browser.

If you’re building longer documents, you can combine this Markdown editor with other tools in the suite: count words and characters with Word Counter, compare two versions of a document using the Difference Checker, or generate placeholder content with the Lorem Ipsum Generator. It plugs into the rest of your writing workflow without getting in the way.