Markdown Viewer

Open local .md files and read them beautifully — Mermaid, math, footnotes, code — all in your browser.

Read Markdown files with diagrams, math & code

Drop a local .md file (or paste markdown) and get a clean, readable document: GitHub-flavored tables, task lists, footnotes, syntax-highlighted code with one-click copy, Mermaid diagrams, and KaTeX math. An outline sidebar tracks your position in long documents, and in-document search jumps between matches. Choose Standard/Focus/Present reading modes and tune outline depth/filter for long docs.

Recently viewed files are one click away — on Chromium browsers the viewer re-reads the latest version straight from disk; everywhere else an offline snapshot opens instantly. Relative images/links can be resolved locally with optional folder access. Export any document as a standalone HTML file or print it to PDF. Everything runs 100% client-side — your files are never uploaded.

Do my files get uploaded anywhere?

No. Files are read locally by your browser and rendered in place. Recent-file snapshots and reading state live in your browser storage (IndexedDB + localStorage) and never leave your machine.

Which Markdown features are supported?

CommonMark plus GFM (tables, strikethrough, task lists, autolinks), footnotes, heading anchors, Mermaid code fences, $…$ /$$…$$ math, and fenced code with syntax highlighting.