Compare software

OptiImage vs Curtail: catalog facts
OptiImage	Curtail
Free Free and open source under the LGPL-2.1-only licence.	Free Free and open source under the GPL-3.0-or-later.
Linux	Linux
Lossless and lossy compression modes Option to keep or remove metadata	Handles PNG, JPEG, WebP and SVG Uses proven tools like oxipng and pngquant
Linux only Young project, first released in late 2024	Linux only Compression only, no other editing
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1-only	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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