HM GUI for Mac

your photos.
your Mac.

Browse a shoot, develop RAW files, retouch with layers and masks, and batch hundreds of photos. Everything runs on your Mac, with one purchase and no subscription.

Coming soon to the Mac App Store. Requires macOS 14 or later, on Apple silicon or Intel.

HM GUI app icon
The HM GUI photo browser with star ratings and color labels
A photo browser that stays open while you work: ratings, labels, filters and metadata.
The HM GUI editor with layers, blend modes and a selection
A layered editor: selections, masks, 20 blend modes, adjustment layers, text and shapes.
Developing a photo with sliders and a histogram
RAW developing with pro sliders, Auto and a live histogram.
Floating tool and layer panels over several image windows
Float your tools and panels, open many images and drag layers between them.
The batch window with crop, size and format settings
Batch a whole event: one look, event-ready crops, sizes and background removal.
HM GUI's privacy promises next to the app
No account, no cloud, no tracking and no network access at all.

Photos: NASA.

browse

Folders, thumbnails, star ratings, rejects and color labels, saved in standard XMP sidecars.

develop

Temperature, tint, exposure, contrast, highlights, shadows, whites, blacks, clarity, vibrance, saturation, sharpening and noise reduction.

retouch

Layers, groups, masks you can paint, brush, clone, heal, Select Subject and Remove Background (on device).

batch

Apply one look, crop to 4:5, square, story or print sizes, resize and export JPEG, PNG, HEIC or 16-bit TIFF.

files

Opens JPEG, PNG, TIFF, HEIC and most cameras' RAW formats, and opens PSD files flattened. Saves layered projects and layered PSD files.

private

No account, no analytics, no network access. Location data is never written into exports.