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