Darktable - darktable is an open source photography workflow application and raw developer.
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
Adobe Lightroom - Adobe Lightroom is a family of image organization and image manipulation software.
Gifox - Delightful GIF Recording and Sharing App for macOS
Dark Room - A quick, powerful photo editor that gives you control
Instagiffer - Create GIFs from anything!