Final2x provides image super-resolution on Windows, macOS, and Linux, with options to use built-in or custom models.
Open source
24 alternativesGifsicle
Gifsicle creates, edits, and optimizes GIF images and animations, including changing frames, timing, transparency, and playback options.
About Gifsicle
Gifsicle is a command-line tool that creates, manipulates and optimizes GIF images and animations. It can merge GIFs into an animation, split an animation into frames, edit individual frames, and adjust delays, looping, disposal, transparency, interlacing and colormaps.
It is distributed with Gifview, which displays GIFs on an X display as slideshows or real-time animations, and Gifdiff, which checks two GIF files for identical visual appearance.
Key features
- Merge multiple GIFs into a GIF animation
- Explode an animation into its component frames
- Edit individual frames, delays, looping and disposal
- Add transparency and turn interlacing on or off
- Optimize animations for space and change colormaps
- Flip and rotate images; add and remove comments
Best for: People comfortable building and using command-line software who need to edit or optimize GIF animations.
Good for
- Open source code distributed under GNU General Public License Version 2
- Combines frame editing, timing, looping, transparency and space optimization
- Includes Gifview for display and Gifdiff for visual comparison
Watch out for
- Gifview requires an X display and may need to be disabled without X11
- Described Windows build with Visual C does not build Gifview
- Author states no support for Windows
Gifsicle at a glance
- Website
- github.com/kohler/gifsicle
- Category
- Design & Creative › Image Creation & Editing
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Gifsicle FAQ
How do I build Gifsicle on UNIX?
If ./configure does not exist, run autoreconf -i first, then run ./configure and make. Make install builds and installs to /usr/local by default.
How do I build Gifsicle on Windows using Visual C?
Change into the src directory and run nmake -f Makefile.w32. Gifview will not be built.
What do the companion programs do?
Gifview displays GIF images and animations on an X display as slideshows or real-time animations. Gifdiff checks two GIF files for identical visual appearance.
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