Choose an image
Select a JPG, PNG or WebP file up to 20 MB and 16 million pixels.
Reduce JPG, PNG or WebP images below a chosen file-size limit, with measured output sizes.
Compress Image to KB is a free online image tool from GigaTools. Reduce JPG, PNG or WebP images below a chosen file-size limit, with measured output sizes. It runs entirely in your web browser, so nothing is uploaded and it works on any device without installing software.
Comment ça marche
Select a JPG, PNG or WebP file up to 20 MB and 16 million pixels.
Enter your maximum in KB. Choose whether dimensions may shrink to reach it.
Compare the preview and measured output size, then download the JPG.
FAQ
1. Choose an image: Select a JPG, PNG or WebP file up to 20 MB and 16 million pixels. 2. Set the size limit: Enter your maximum in KB. Choose whether dimensions may shrink to reach it. 3. Inspect the result: Compare the preview and measured output size, then download the JPG.
No. It aims for a file below the limit, not a padded file of exactly that size. KB means 1,000 bytes. The result displays exact bytes; compression is lossy.
JPG, PNG or WebP only. Each input is limited to 20 MB and 16 million pixels. Output is limited to 16 million pixels; contact sheets accept up to 12 files.
No. File processing stays in your browser. This does not remove all third-party requests made by the website.
Poursuivre
Réduisez la taille des images JPG, PNG et WebP avec un aperçu en direct de la qualité et de la taille.
Redimensionnez les images en pixels ou en pourcentage, en conservant le rapport hauteur/largeur si vous le souhaitez.
Convertissez les photos HEIC de l'iPhone en JPG pour qu'elles s'ouvrent n'importe où.
Extrayez le texte des captures d'écran, des photos et des documents numérisés.
Convertissez des images entre les formats JPG, PNG et WebP en quelques secondes.
Convertissez les images PNG en JPG, avec une couleur d'arrière-plan pour les zones transparentes.