PeekX for Mac
Quick Look Extension for Folder Preview on macOS.
By altic-dev. Free and open source, MIT licence.
PeekX at a glance
- Version
- 1.1
- Released
- 19 November 2025
- Download size
- 1.1 MB
- Works on
- Apple silicon and Intel
- Licence
- MIT
- Category
- System Tools
- Developer
- altic-dev
- GitHub stars
- 257
Screenshots

How to install PeekX on a Mac
- Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
- Search for PeekX and press Get. OpenDMG downloads version 1.1 from altic-dev's own GitHub release.
- Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.
Updates to PeekX show up in OpenDMG and install with one button. No account is needed.
Prefer to do it by hand? The developer's file is on GitHub: PeekX-1.1.dmg (1.1 MB).
What is new in PeekX 1.1
# PeekX v1.1 ## What's New - Now supports Markdown file previews - Performance improvements - folder preview is faster ## Installation 1. Download `PeekX-1.1.dmg` 2. Drag PeekX to Applications 3. Launch PeekX once to register the extension 4. Press Space on any folder in Finder to preview ## Requirements - macOS 14.0 or later
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