What quality should I use?

70–80 is a great default. 85–90 preserves fine detail; 60–70 is aggressive but fine for previews or mobile uploads.

Does compression change the format?

This tool always outputs JPEG for maximum size reduction. PNG is not a good target for photographic compression.

Free tool · Compress

Slide the quality control to make photos smaller for email, upload, or storage. Everything runs in your browser.

Files never leave your browser.

Quality75

Déposez une photo ou choisissez un fichier

Les fichiers ne quittent jamais votre navigateur.

Free tool · Compress

Most compressors upload your photo, compress on a server, and download the result. Doing it locally is faster and keeps your image private.

JPEG quality 70–80 is usually indistinguishable from 100 to the eye, at roughly a fifth of the file size.

Continuez à retoucher sur iPhone

Magic Retouch handles object removal, backgrounds, and enhance — then export a compressed copy in the app.

70–80 is a great default. 85–90 preserves fine detail; 60–70 is aggressive but fine for previews or mobile uploads.
This tool always outputs JPEG for maximum size reduction. PNG is not a good target for photographic compression.
No.