Compare software

Image Compare vs Improve ImgSLI: catalog facts
Image Compare	Improve ImgSLI
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under the MIT License.
Windows, Linux	Linux
Compare up to 12 images in side-by-side, stacked, or grid views Synchronized zoom and pan across images	Magnifiers and split views help inspect image details Includes image difference modes and quality metrics
Available for Linux and Windows	Available for Linux through Flathub.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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