macOS Quick Look Extension for NIfTI, MGH, MIF

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Dear community,

I would like to announce a small macOS utility I have just released, a novel Quick Look Extension for medical images in research formats that works on modern macOS.

1644Ă—1510 326 KB

Inspired by the old and deprecated DTI-TK Quick Look plugin by Gary Hui Zhang, which brought similar functionality to older versions of macOS but is incompatible with the Quick Look extension architecture of current macOS versions (15 and newer).

To address this, I built MIQ, a free and open-source, modern macOS Quick Look extension. Simply hit the Spacebar in Finder to instantly see an orthogonal slice view along with a metadata panel.

:white_check_mark: MRtrix (.mif, .mif.gz)
:white_check_mark: NIfTI-1 & NIfTI-2 (.nii, .nii.gz)
:white_check_mark: FreeSurfer (.mgh, .mgz)
:white_check_mark: Works on Apple Silicon & Intel
:white_check_mark: Compatible with macOS 15 Sequoia & 26 Tahoe

https://github.com/marcoduering/MIQ

I’d love for you to try it and share any feedback! The app is notarized by Apple, you can just download and install it. No need to circumvent any macOS security measures or to compile on your own.

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Major updates with MIQ version 1.0.0!

  • The preview is now fully interactive (scroll, drag, window/level). You can quickly explore your data directly in Quick Look, even in 4D (multi-volume). Especially convenient for fMRI or DWI data.
  • The view is configurable from the main app. For example, choose to display images “as stored” or reoriented.
  • Support for the NRRD format has been added.
  • Thumbnail extension: display an image slice as a file icon in Finder (optional, activate from the main app).
  • Built-in updater.

Download from GitHub or install via Homebrew:

brew tap marcoduering/miq
brew install --cask miq
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