2 Free and Open-source Photo editor Apps for macOS (Intel and Apple Silicon)

1- APNGb

macOS app which assembles and disassembles animated png files

APNGbmacOS app which assembles and disassembles animated png files

APNGb is a macOS app which creates animated png from a series of png frames and disassembles animated png into a series of png frames. Assembling has optimization and compression capabilities, option to change frame delay for all or selected frames, playback options. See Assembling feature and Disassembling feature sections for more details. App supports macOS 10.11 and above.

Read about APNGb 's features, license, platforms, and more.

2- darktable

open source photography workflow application and raw developer

darktableopen source photography workflow application and raw developer

darktable is an open source photography workflow application and raw developer. A virtual lighttable and darkroom for photographers. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.

darktable is created for photographers, by photographers.

Having developers that are also avid photographers as part of the target audience is good for understanding the real world problems, challenges, and workflows.