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Squoosh vs Kompact: catalog facts
Squoosh	Kompact
Free Free to use.	Free Free and open source under the AGPL-3.0, with no account required.
Web	Android
Side-by-side comparison makes it easy to judge quality versus file size trade-offs Runs entirely in the browser with no upload needed	Fully offline, images never leave the phone Batch compression with target size and quality settings
Focused narrowly on compression and format conversion, not general image editing Best suited to single images rather than batch processing	Android only Watermarking is limited to text
Web application	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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