How much can I reduce an image file?

Typically 50-80% size reduction. A 3 MB JPEG becomes 500-800 KB at quality 80 with virtually no visible difference.

Which image formats are supported?

JPEG, PNG, WebP and GIF. For best results use JPEG for photos and PNG for graphics with transparency.

No. Compression only reduces file size — the image dimensions (width × height) remain unchanged.

75-80% is the industry standard for web images. At this level, most people cannot detect any quality difference.

Batch compression is available with FileSwiftly Pro. The free tool compresses one image at a time.

Apposez un texte ou un logo sur vos images — 100% dans le navigateur, aucun upload.

~3–6 sec Texte ou image Supprimé après 1h Max 50 MB

Cliquez ou glissez une image

Texte du filigrane

Couleur

Opacité 60%

Taille police 40px

Position

Rotation -30°

Aperçu ici

Need more?

Compress up to 50 images at once with Pro

Batch processing WebP & AVIF export REST API access

★

Votre note *

Prénom (optionnel)

Votre IP est anonymisée. Aucune donnée personnelle n'est conservée.

Commentaire *

0/500 caractères

Continue with these complementary tools

Compress Image

Reduce JPEG/PNG/WebP size

Resize Image

Change dimensions in px/%

Crop Image

Crop your image

Watermark Image

Add watermark to image

Image to PDF

Convert JPG/PNG to PDF