Tools / Pinion.md

Pinion.md

A Markdown-first writing tool for people who think in plain text. Open a file, write, save it back to the same place — no account, nothing uploaded.

Pinion.md showing its split-view Markdown editor with source on the left and rendered preview on the right

Most Markdown editors want you to live inside their app and their storage. Pinion.md works the other way: it reads and writes the Markdown files already on your disk, then gets out of the way.

What it does

  • Three view modes — Preview, Edit, and Split.
  • Opens, saves, and reloads files directly on your device via the File System Access API.
  • Clean rendered output with syntax-highlighted code blocks.
  • Runs in the browser as a PWA — installable, works offline once loaded.
  • No account, no upload, no lock-in. Your files stay yours.

Who it's for

Anyone who keeps notes, docs, or drafts as .md files and wants a fast, distraction-free way to read and edit them without importing into yet another app.

Status

Live — v1.0. Shipped May 2026. On the roadmap for a future update: a dark-mode toggle, recent files, drag-and-drop open, in-file search, and find-and-replace. Want one of those sooner? Say so.

Questions

Where are my files stored?

On your own device. Pinion.md opens and saves through your browser's File System Access API; nothing is uploaded to a server. See the privacy policy.

Which browsers support it?

The File System Access API works in Chromium-based browsers (Chrome, Edge, Brave). In browsers without it, you can still preview, but save-to-disk may be limited.

Does it work offline?

Yes. It's a PWA with a cache-first service worker, so once it has loaded it keeps working without a connection.

Support & source

Questions, bugs, or feature ideas? Reach out — I reply fast.

Source code lives on GitHub.

Data handling is covered in the privacy policy.

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