darktable
Description: darktable is an open source photography workflow application and raw developer. 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.
Type: software
Pricing: Free
Grafx2
Description: Grafx2 is a free, open source bitmap paint program for Windows, Linux, MacOS, and other platforms. It is designed for creating pixel art, sprites, and other raster graphics. Key features include support for multiple layers and transparency, animation frames, palettes, image filters, and basic editing tools.
Type: software
Pricing: Open Source