Compresserer une Image en Ligne
Réduisez la taille des fichiers JPG/PNG/WebP avec qualité réglable. Gratuit.
Drop images here or parcourir les fichiers
What is an image compressor?
An image compressor shrinks the file size of a picture so it loads faster, uploads quicker, and takes up less storage. The trade-off is controlled by quality: a lower quality setting discards more fine detail but produces a much smaller file, while a higher setting keeps the image looking nearly identical to the original. A good rule of thumb is to lower quality step by step until the image still looks great — most photos look fine at 60–80% quality.
This free online image compressor works on JPG, PNG, and WebP files and lets you pick the exact quality with a simple slider. It runs entirely in your browser, so your photos are never uploaded to a server — which makes it safe for private or sensitive images. Whether you need smaller images for a website, an email attachment, or a social post, you can reduce image file size in seconds, without installing anything.
Comment faire use the image compressor
- Drop one or more images onto the box above, or click browse to select files.
- Drag the quality slider until the preview size looks right — lower quality means a smaller file.
- Click Compresser and download each optimized image, with the old and new sizes shown side by side.
Frequently asked questions
How much can I compress an image?
Reductions of 50–80% are typical for photos, depending on the source image and the quality you choose. The results list shows the exact before and after size for every file.
Does compressing reduce image quality?
Lower quality settings create smaller files but discard some detail, so very low values can soften an image. The slider is a preview of that trade-off, and quality down to around 70% is usually hard to tell apart from the original.
Can I compress multiple images at once?
Yes — drop as many JPG, PNG, or WebP files as you need. Every file is compressed with the same quality setting and each result can be downloaded individually.
Are my images uploaded to a server?
No. Compresserion happens locally in your browser, so your images never leave your device — nothing is stored, tracked, or sent anywhere.