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OptiImage vs TinyPNG: catalog facts
OptiImage	TinyPNG
Free Free and open source under the LGPL-2.1-only licence.	Freemium The online compressor is free; the developer API and image CDN have paid plans.
Linux	Web
Lossless and lossy compression modes Option to keep or remove metadata	Nothing to install, works in the browser Handles AVIF, JXL, WebP, PNG and JPEG
Linux only Young project, first released in late 2024	Lossy compression changes image data Requires an internet connection and uploading images
Downloadable app	Web application
Open source	Closed source
License: LGPL-2.1-only	License not stated
No account needed	Not stated if an account is needed
Works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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