The fastest way (any device)
Drop the file into the viewer at the top of this page. It renders instantly, works on every OS and phone, and the file never leaves your browser. Done.
On Windows
Windows has no default app for .md. Your options:
- Notepad — right-click the file → Open with → Notepad. You'll see raw text with # and * symbols, readable but unformatted.
- VS Code (free) — open the file and press
Ctrl+Shift+Vfor a formatted preview. Best if you also edit markdown. - Or skip the install — open it in this page's viewer with formatting intact.
On Mac
- TextEdit — opens .md as plain text (unformatted).
- Quick Look — select the file and press Space for a basic preview.
- VS Code / editors — full preview with
Cmd+Shift+V. - Or use the online viewer above — full GFM rendering including tables and diagrams.
On iPhone / iPad
iOS can Quick Look .md files from Mail or Files, but formatting is limited. For a proper reading view, open Safari, visit this page and pick the file from Files — the viewer is fully touch-friendly.
On Android
Android has no built-in markdown preview. Rather than installing an app for one file, open this page in Chrome and choose the file — it renders as a clean document you can also export to PDF.
Want the file in another format?
Convert it once and never worry again: MD to PDF for sharing, MD to Word for editing.
最快的方法（任何设备）
把文件拖进本页顶部的查看器。立即渲染，任何系统和手机都可用，文件不离开浏览器。搞定。
Windows
Windows 没有 .md 的默认应用。你的选择：
- 记事本——右键文件 → 打开方式 → 记事本。能看到带 # 和 * 符号的原始文本，可读但无排版。
- VS Code（免费）——打开文件后按
Ctrl+Shift+V查看格式化预览，适合还需要编辑的人。 - 或者跳过安装——直接在本页查看器中打开，排版完整。
Mac
- TextEdit——以纯文本打开（无排版）。
- 快速预览——选中文件按空格键，可做基础预览。
- VS Code 等编辑器——
Cmd+Shift+V完整预览。 - 或使用上方在线查看器——完整 GFM 渲染，含表格与图表。
iPhone / iPad
iOS 可以在邮件或"文件"中快速预览 .md，但排版有限。想要真正的阅读视图：打开 Safari 访问本页，从"文件"中选取——查看器完全适配触屏。
Android
Android 没有内置 Markdown 预览。与其为一个文件装一个 App，不如用 Chrome 打开本页选择文件——渲染为干净文档，还能顺手导出 PDF。