This is a distraction-free Markdown editor: type on the left, see the rendered result on the right, updated on every keystroke. It supports standard Markdown plus common GitHub-flavored extras like tables and strikethrough, powered by the widely-used marked.js parser. Your draft autosaves to your browser's local storage, so refreshing or accidentally closing the tab won't lose your work.
When you're done, download the raw Markdown source (.md) to keep editing elsewhere, download a standalone rendered .html file, or copy the sanitized HTML straight to your clipboard to paste into a CMS, email, or blog editor. All rendering and sanitization (via DOMPurify) happens locally — nothing you write is ever uploaded.
Developers reach for this tool most often to draft a GitHub README before committing it, since the live preview matches how tables, code blocks, and headings will actually render once pushed. Writers use it to draft blog posts or documentation in a format that's easy to paste into a static-site generator or CMS without carrying over messy Word formatting. It's also handy for quick technical notes, changelogs, or meeting minutes where you want clean structure (headings, lists, links) without opening a heavier word processor — and because nothing is saved to a server, it's a reasonable choice for drafting notes you'd rather not store in a third-party cloud account.
左侧输入 Markdown，右侧实时预览渲染效果，支持表格、删除线等 GitHub 风格扩展语法。内容会自动保存到浏览器本地，支持导出为 .md 源文件、.html 文件，或直接复制渲染后的 HTML。全程本地处理，不上传任何内容。
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