Seashore for MAC
Free, open-source image editor for Mac with layers, painting and selection tools and filters. A light alternative to GIMP or Photoshop.
Seashore Overview
Seashore is an easy-to-use image editor for macOS with support for layers. Its developer describes it as a light GIMP or Photoshop, with most of the features non-professionals need to create images. It has brushes, a pencil, an eraser, clone and smudge tools, gradients, a fill bucket, a text tool, cropping and several selection tools, plus effects such as blur, bloom and crystallize.
Seashore was started by Mark Pazolli and is now maintained by Robert Engels. It is free on the Mac App Store and open source under the GPL 2.0 license. One thing to know: the developer has deprioritized Seashore in favor of Seahorse, a low-cost commercial replacement. Seashore stays free on the App Store, and the developer says they will try to keep it running on later macOS versions and fix critical bugs. It needs macOS 10.9 or later. GitHub no longer gets new builds, so use the App Store unless you want to build it yourself.
Key Features
Seashore covers everyday image editing without the bulk.
- Layers: build an image from separate layers.
- Painting tools: brush, pencil, eraser, clone and smudge.
- Fill tools: fill bucket and gradients.
- Selections: rectangle, ellipse, lasso, polygon lasso and magic wand.
- Text tool: add text to your images.
- Positioning: crop, move, scale and rotate.
- Effects: filters such as Gaussian blur, bloom, crystallize and invert.
- File types: PNG, JPEG, TIFF, GIF, HEIC, WebP, PDF, SVG and GIMP's XCF.
What’s New in Version 3.46
Seashore 3.46 updates the documentation.
- The user guide has a foreword and some corrections
- The user guide format changed to Pages
Seashore FAQ
Is Seashore free?
Yes. Seashore is free on the Mac App Store and open source under the GPL 2.0 license.
Is Seashore a Photoshop alternative?
For everyday work, yes. Its developer describes it as a light GIMP or Photoshop, with most of the features non-professionals need.
Does Seashore support layers?
Yes. Layers are one of its main features.
Which macOS version does Seashore need?
macOS 10.9 or later.
Is Seashore still being developed?
Work on it has been deprioritized in favor of Seahorse. The developer says Seashore stays free on the App Store and that they will try to keep it running on later macOS versions and fix critical bugs.
What is Seahorse?
A low-cost commercial image editor by the same developer, meant to replace Seashore. It needs macOS 13 or later. Seashore itself remains free.
Which file types does Seashore work with?
Its app lists XCF (GIMP), PNG, JPEG, JPEG 2000, TIFF, GIF, BMP, PICT, XBM, HEIC, WebP, PDF and SVG.
Are there tutorials for Seashore?
Yes. There is a user guide, and the developer has simple tutorial videos on YouTube.
Can I download Seashore from GitHub?
The source code is there, but the developer no longer publishes new builds on GitHub. Install it from the App Store or build it yourself.
Where does the Seashore download on seashore.FULLMAC.app come from?
The download button leads to the official Seashore page on the Mac App Store at https://apps.apple.com/us/app/seashore/id1448648921?mt=12. seashore.FULLMAC.app does not change or repackage the app.
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FULLMAC.app does not host this app. Download buttons lead to the developer’s own pages.