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TinyPNG vs Klia Kompress: catalog facts
TinyPNG	Klia Kompress
Freemium The online compressor is free; the developer API and image CDN have paid plans.	Free No price is mentioned; the app is published on Flathub under a proprietary EULA.
Web	Linux
Nothing to install, works in the browser Handles AVIF, JXL, WebP, PNG and JPEG	Processes files locally without uploading Batch conversion with quality control
Lossy compression changes image data Requires an internet connection and uploading images	Proprietary, source not published Very new project with little history
Web application	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary EULA
Not stated if an account is needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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