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MozJPEG vs Rimage: catalog facts
MozJPEG	Rimage
Free Free and open source under BSD-style, IJG and zlib licences.	Free Free and open source, dual-licensed under Apache 2.0 and MIT.
Windows, Command line	Windows, Command line
Smaller JPEG files that work in any JPEG decoder Includes cjpeg and djpeg command-line tools	Modern codecs for small output files Scriptable from the command line
Command-line only, with no graphical interface Encoding is slower than a standard encoder	No graphical interface No tagged releases on GitHub
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause AND IJG AND Zlib	License: Apache-2.0 OR MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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