Drop Markdown File Here
or click the button below to choose a file
or click the button below to choose a file
Drop any .md, .mmd, or .mermaid file to render it instantly in your browser — no sign-up, no upload, no server. Everything runs locally.
Want to edit Markdown, track git history, and search across files? Download MDViewer for macOS →
Your file never leaves your device. The viewer reads it using the browser's File API and renders everything client-side — no server round-trip, no data collection.
.md files downloaded from ChatGPT, Claude, Cursor, or Copilot with full formatting instead of raw textFor daily use with multiple files, a desktop Markdown viewer is faster — it opens files from Finder with a double-click and supports tabs, search, and file trees.
Yes. The online viewer is completely free — no limits, no sign-up, no ads. Use it as many times as you want with any number of files.
The desktop app for macOS also has a free Lite tier. Pro ($9.99 one-time) adds editing, Git history, PDF export, and more.No. Everything runs locally in your browser. Your files are read using the browser's File API and never leave your device. There is no upload, no server processing, and no data collection.
Full GitHub Flavored Markdown (GFM): tables, task lists, fenced code blocks with syntax highlighting, strikethrough, autolinks, and nested lists. Plus Mermaid diagrams rendered as interactive SVGs — flowcharts, sequence, ER, Gantt, and class diagrams.
This online viewer is intentionally read-only — it's designed for quick, distraction-free viewing. Think of it like a preview window.
Need editing? The MDViewer desktop app has inline editing — double-click any word to switch to the editor with the cursor right where you clicked. Fix a typo, update a section, press Cmd+S to save.Not in the online viewer. Git history and diff viewing require file system access.
The MDViewer desktop app shows the full commit history of any tracked.md file in the sidebar. Click a commit to see a color-coded diff with line numbers and context — no terminal needed.
The online viewer doesn't support export. You can print the page (Ctrl/Cmd+P), but formatting may vary.
The MDViewer desktop app exports to PDF with smart pagination — press Cmd+Shift+E. Headers, tables, code blocks, and Mermaid diagrams all export cleanly.The online viewer handles one file at a time — drop a new file to replace the current view.
The MDViewer desktop app has a file tree sidebar: open a folder to browse and switch between.md files without leaving the app. Unlimited tabs in one window, just like a browser.
Not in the browser — the online viewer reads a file once when you drop it.
The MDViewer desktop app watches files for changes and re-renders automatically. When Claude Code, Cursor, or Copilot writes a.md file, MDViewer updates the rendered view in real time — no manual reload. Great for watching AI agents build specs and docs live.
Yes. This viewer renders all Mermaid diagram types — flowcharts, sequence diagrams, ER diagrams, Gantt charts, class diagrams — as interactive SVGs. You can also open standalone .mmd and .mermaid files directly.
Download the free MDViewer app for macOS. Set it as your default app for .md files: right-click any .md file → Get Info → Open with → MDViewer → Change All. After that, every Markdown file opens with a double-click from Finder.
Need editing, Git history, PDF export, and file trees?
Download MDViewer for Mac — FreemacOS 13.0+. Intel and Apple Silicon. No account required.