Coluracetam for MAC
Free, open-source Markdown reader and editor for Mac with a live split preview, Quick Look previews and thumbnails in Finder, and PDF/HTML export.
Coluracetam Overview
Coluracetam is a Markdown reader and editor for Mac that shows the same rendered preview everywhere. Press the spacebar on a .md file in Finder and Quick Look shows it rendered in color, and Finder shows generated thumbnails of your Markdown files. Open a file in the app and you get a live split: plain monospace source on one side and the rendered page on the other, with text selection and search that work across the whole rendered document.
Coluracetam is made by Mado Kagerou and is free and open source under the MIT license. It opens and saves ordinary UTF-8 .md and .markdown files directly, with light and dark previews, and needs no account or setup. When another editor changes a file you have open, Coluracetam reloads it while keeping your unsaved edits. You can save the rendered document as PDF or HTML, and zoom with Command-plus, Command-minus and Command-zero. Version 1.2.0 adds PDF import, so you can open or import any PDF as Markdown. Coluracetam needs macOS 26 Tahoe and runs on Apple Silicon Macs only, according to its Homebrew cask.
Key Features
Coluracetam makes Markdown easy to read wherever you meet it.
- Quick Look previews: press the spacebar in Finder to read a Markdown file rendered.
- Finder thumbnails: rendered thumbnails for your Markdown files.
- Live split editor: monospace source and the rendered page side by side.
- Search and selection: select and search text across the whole rendered document.
- Plain files: opens and saves ordinary UTF-8 .md and .markdown files.
- Export: save the rendered document to PDF or HTML.
- Safe reloads: picks up changes made in another editor without losing unsaved edits.
- PDF import: open or import any PDF as Markdown.
What’s New in Version 1.2.0
Coluracetam 1.2.0 adds PDF import.
- Open or import any PDF as Markdown
Coluracetam FAQ
Is Coluracetam free?
Yes. Coluracetam is free and open source under the MIT license, and it needs no account.
Which macOS version does Coluracetam need?
Coluracetam needs macOS 26 Tahoe.
Does Coluracetam run on Intel Macs?
No. Its Homebrew cask lists it for Apple Silicon Macs only.
Can Coluracetam preview Markdown in Finder?
Yes. It adds a Quick Look preview, so pressing the spacebar on a Markdown file shows it rendered, and it generates thumbnails for Markdown files in Finder.
Can I edit Markdown in Coluracetam?
Yes. The app has a live split view with the plain source on one side and the rendered page on the other.
Which files does Coluracetam open?
Ordinary UTF-8 .md and .markdown files, which it opens and saves directly. Since version 1.2.0 it can also open or import a PDF as Markdown.
Can Coluracetam export to PDF?
Yes. You can save the rendered document as PDF or HTML.
What happens if another app changes a file I have open?
Coluracetam reloads the file and keeps your unsaved edits.
Can I install Coluracetam with Homebrew?
Yes, from the developer's tap: brew install --cask kageroumado/tap/coluracetam.
Where does the Coluracetam download on coluracetam.FULLMAC.app come from?
The download button leads to the official Coluracetam release page on GitHub at https://github.com/kageroumado/coluracetam/releases/latest. coluracetam.FULLMAC.app does not change or repackage the app.
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