Markdown Viewer & Editor

Markdown Viewer & Editor opens any .md file and shows it the way it was meant to look, and turns it into a PDF with one tap. Tap a markdown file in Files, Downloads, Google Drive, Gmail or a chat app, choose Open with, and read it right away. Edit it, and your changes are saved back to the same file. No copies, no lost work.

Markdown to PDF, offline
Convert any md file to a PDF that looks like the preview, with tables, math and code. Your first 2 PDF exports are free. Paste markdown from any app or AI assistant to read it formatted, then save it as a .md file or a PDF.

Mermaid diagram viewer (.mmd)
Open .mmd and .mermaid files as one diagram. Flowcharts, sequence, gantt and pie charts render right away, offline. Viewing is free; edit the diagram text and it saves back to the same file.

A markdown viewer that handles real documents
• Wide tables scroll sideways on their own, or fit them to the screen with one tap
• Math and LaTeX formulas with KaTeX: $…$, $$…$$, \(…\) and \[…\], fully offline
• Code blocks with syntax highlighting for many languages
• Task lists, footnotes, strikethrough and GitHub-style tables
• Mermaid diagrams inside markdown files: flowcharts, sequence, gantt and pie charts (Pro)
• Large files: a fast markdown reader for long documents. 40,000-word documents open smoothly, and files up to 20 MB open as text
• Outline view to jump between headings

An md editor that never loses your edits
• Saves to the original file, with autosave a few seconds after you stop typing
• A safe copy of your text is kept in the app, so a crash or a dead battery doesn't cost you work
• Restore any of the last 10 versions of a file
• Warns you if another app changed the file while you were editing
• Toolbar for bold, headings, lists, links, tables, code and math
• Undo and redo, find, word count and reading time
• Works with a physical keyboard: Ctrl+S, Ctrl+B, Ctrl+F and more. Arrow keys stay in the text
• Split view with live preview on tablets and foldables

MD to PDF and HTML export
Export a markdown file to PDF or HTML. Unlimited md to pdf and HTML export come with Pro.

Read your way
• Dark mode, light mode and font size
• Right-to-left support: Arabic and Hebrew paragraphs align correctly next to English ones
• Open folders of notes and README files and browse them

Private and offline
Your documents stay on your phone, or with the storage app you chose. We have no servers and never upload your files. No account needed.

Free and Pro
Reading, editing, saving, autosave, version restore, math and folders are free. The free version shows one small banner on the home screen, plus an optional ad you can watch to export one more PDF. Never while you read or write. Pro is a single one-time purchase, not a subscription. It removes all ads and adds Mermaid diagrams inside markdown files, unlimited PDF and HTML export, find and replace, and extra themes.

Works with .md, .markdown, .mmd, .mermaid and .txt files.

Recent changes:
Open Mermaid diagram files (.mmd). Bug fixes and improvements.