Compare software

ttygif vs agg: catalog facts
ttygif	agg
Free Free and open source under the MIT license.	Free Free and open source under the GPL 3.0 licence.
macOS, Linux, Command line	Windows, Command line
Converts ttyrec recordings into GIFs Supports terminal recordings from standard Terminal and iTerm on macOS	Optimized GIF output through gifski Works directly with asciinema recordings
Requires ttyrec recordings and ImageMagick The README documents Linux and macOS setup	Only converts asciicast files, so you need asciinema to record first GIFs are larger and less sharp than the live asciinema player
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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