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Curtail vs YOGA Image Optimizer: catalog facts
Curtail	YOGA Image Optimizer
Free Free and open source under the GPL-3.0-or-later.	Free Free and open source under the GPL-3.0 licence.
Linux	Windows, Linux
Handles PNG, JPEG, WebP and SVG Uses proven tools like oxipng and pngquant	Simple drag and drop workflow Converts between JPEG, PNG and WebP
Linux only Compression only, no other editing	JPEG optimization is slow and memory hungry Small gains when optimizing WebP files
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	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.