Seashore (software)

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Seashore icon.png
Original author(s)Mark Pazolli
Developer(s)Robert Engels
Initial release16 January 2003; 19 years ago (2003-01-16)
Stable release
3.4 / July 2022
Written inObjective-C
Operating systemmacOS
TypeRaster graphics editor

Seashore is a free and open-source image editor for macOS based on GIMP, with a simpler Cocoa user interface.[1][2] Seashore uses GIMP's native file format, XCF, and has support for a handful of other graphics file formats, including full support for TIFF, PNG, JPEG, JPEG2000, and HEIC and read-only support for BMP, PDF, SVG and GIF.[3] Seashore offers fewer features than GIMP, but is intended to be easy-to-use and to run natively on macOS. It includes layers and alpha channel support, gradients and transparency effects, anti-aliased brushes, tablet support and plug-in filters.

After several years without maintenance, development was restarted by Robert Engels in 2017 to allow it to run on newer versions of macOS.[2] Seashore version 3.4 was released in July 2022 and is considered to be stable.[4]

The latest release is distributed via the Apple Mac App Store.[5][2]


Seashore has many of the basic features found in graphics editing software, including:

  • Full support for the XCF file format
  • Reading and writing TIFF, PNG, GIF, JPEG, JPEG 2000 and HEIC file formats
  • Reading BMP, PDF, SVG, PICT, and XBM file formats
  • Layers and layer merging effects
  • Individual editing of layer channels
  • Transparency effects and transparency in gradients
  • Arbitrary selection regions (i.e. through a lasso tool)
  • Anti-aliased paint brushes
  • 6 gradient effects
  • Graphics tablet support
  • Plug-in filter effects
  • Core Image support

See also[edit]


  1. ^ Sahag, Isaac (31 December 2015). "9 Ways to Get by Without Photoshop on Your Mac". Gadget Hacks. Retrieved 11 April 2019.
  2. ^ a b c Prokoudine, Alexandre (17 January 2019). "Meet Seashore, free image editor for macOS with GIMP roots| Libre Graphics World". Retrieved 11 April 2019.
  3. ^ Singh Rao, Vicky (22 July 2018). "10 Best Free Open Source Software For Mac". Technotification. Retrieved 11 April 2019.
  4. ^ "GitHub: Seashore". Retrieved 26 November 2018.
  5. ^ "App Store: Seashore". Retrieved 26 November 2018.

External links[edit]