Tools/robbietilton/Compositor

Compositor

The Photoshop alternative for Mac

3.0kemergingSwiftMIT Licensenew this week

The Lens

By Erik Loyd, SaaS CEO and former COO/CFO of an AWS Premier Partner.

Updated Sep 2026

Compositor is a free, native Mac image editor built to feel like Photoshop, down to the keyboard shortcuts, so the muscle memory carries over. Layers, folders, masks, clipping masks, adjustment layers for curves and levels, a clone stamp, spot healing, content-aware fill, subject selection, and background removal all work today. MIT licensed, no account, no subscription.

Install is a signed and notarized DMG from GitHub Releases with automatic updates. The hard requirement is macOS 26.5. Anything older will not run it, and an open issue asks for macOS 15 support. It is Mac only. It imports JPEG, PNG, HEIC, TIFF, and as of version 1.2 Photoshop PSD files, keeping folders, masks, and some blend modes editable.

Solo creators and small teams who composite and retouch photos: try it before renewing Adobe. Anyone who trades PSDs with clients should wait. On Windows or Linux, GIMP and Krita are the established open source options, and penpot/penpot covers UI design, not photos.

The catch: it was five days old when we looked, shipping several releases a day. PSD support is import only, 8-bit RGB only, no CMYK, and PSD text layers turn into pixels. There is no PSD export at all. The 1.2 release notes admit layer effects were being lost on save until that fix. Keep backups of anything that matters.

Free vs Self-Hosted vs Paid

fully free

Free: Everything. MIT licensed native macOS app with layers, masks, adjustment layers, retouching tools, subject selection, background removal, and PSD import.

Self-hosted: Nothing to host. A signed and notarized DMG from GitHub Releases, or build from source with Xcode 26. Requires macOS 26.5.

Paid: None. No App Store listing, no subscription, no paid tier. The comparison is Adobe Photoshop's subscription, which is the reason the project exists.

Completely free and open source. The cost is a Mac on macOS 26.5 and tolerance for a days-old app.

What to do by team size

Solo
free
Small team
free; keep Photoshop for client PSD handoffs
Medium team
free; too young to standardize on
Large team
free; not a Photoshop replacement for production teams yet
Self-hosting ops:trivial

Get tools like this every Wednesday

One featured tool, three on the radar. No fluff.

Score
56/100 · C+
Adoption16/30
Maintenance10/25
Community5/20
License15/15
Analysis10/10

A low score is not a verdict on quality. Young and niche tools start low by design. How we calculate scores

License: MIT License

Use freely, including commercial. Just keep the license.

Commercial use: ✓ Yes

About

Owner
Robbie (User)
Stars
2,974

Explore Further

More tools in the directory