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Case study · Custom Systems

Document viewer (free tool)

Open a Markdown file and read it like a Word document. A free tool on our site: open a Markdown (.md) file and read it as A4 pages, edit it like Word, and save it as Markdown, Word or PDF. Nothing is uploaded.

Market
International
Industry
Our own free tool
Launched
October 2026
Document viewer showing a proposal as an A4 page

The problem

Developers and AI tools hand people Markdown files. Opened raw, they're a mess of hashes and stars, and most people have nothing that shows them properly.

What we built

Drop a file on the page and it's laid out as A4 pages with a contents list. Edit it straight on the page with a normal toolbar, or edit the raw Markdown with the pages updating as you type. Save it as Markdown or Word, or print it to PDF. Everything runs in the browser, so the file never leaves your computer.

Features

  • A4 pages with a contents list
  • Edit on the page like Word
  • Raw Markdown editing with a live preview
  • Save as .md or .docx, print to PDF
  • Works on phones
  • Nothing is uploaded

Screens

Editing on the page with the formatting toolbar
Edit straight on the page
Raw Markdown beside the live preview
Or edit the raw Markdown, with a live preview
Document viewer on a phone
On a phone the document flows in one column

See it working

Open a file, read it, edit on the page, check the Markdown

Built with: Next.js · TipTap · markdown-it · docx

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