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Gifski vs Gifsicle: catalog facts
Gifski	Gifsicle
Free Free and open source; a separate commercial license is available for closed-source use.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Thousands of colors per frame with temporal dithering Resize and compression controls for size limits	Creates, edits and splits animated GIFs from the terminal Optimizes GIF size by trimming colours and colour tables
Output is limited by the GIF format itself GUI apps for Windows and macOS are maintained separately	GIF format only Command-line only, no preview window
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.