Compare software

jpegoptim vs Image Optimizer: catalog facts
jpegoptim	Image Optimizer
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the MIT licence.
Windows, Linux, Command line	Linux
Small, fast tool focused on one job Easy to use in scripts and batch jobs	Lossless compression with identical pixels Processes a whole folder at once
Handles JPEG files only No graphical interface	Only PNG and JPEG Overwrites the original files in place
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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