Compresseur d'images
Compress JPG, PNG, WebP and GIF images online. Reduce image file size by up to 80% while keeping great quality — free, fast, no signup, no watermark.
Taille maximale du fichier 10 Mo. Inscrivez-vous pour en savoir plus.
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Checking files and selected compression settings.
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Create a free account to track usage, then upgrade for more monthly compressions and larger batch limits.
About Image Compression
Image compression shrinks file size by removing data your eyes are unlikely to notice. There are two approaches. Lossy compression (used by JPEG and WebP) discards fine colour detail and high-frequency texture, which can cut file size by 60-90 % with little visible change. Lossless compression (used by PNG and lossless WebP) rearranges pixel data more efficiently without discarding anything, typically saving 10-30 %.
The right target size depends on where the image will be used. Passport and ID photos for government portals often need to be under 50 KB. Website hero images perform best between 80-150 KB for fast loading without visible blur. E-commerce product shots usually aim for 100-200 KB to balance detail and page speed. Social-media platforms re-compress uploads automatically, so starting with a clean 200-500 KB file gives you the best result.
Si vous connaissez déjà le format exact dont vous avez besoin, accédez à un outil dédié : compress JPEG, compress PNG, compress WebP, or compress HEIC. If you are comparing options or need a general-purpose compressor, start here.
Comment compresser des images en ligne
Three simple steps to reduce image file size — no software, no sign-up required.
Upload up to 50 images simultaneously for batch compression. Supports JPG, PNG, WebP, BMP, TIFF, GIF, HEIC, and SVG.
Pick a target file size — 50 KB, 100 KB, 200 KB, 500 KB, or 1 MB. Our engine adjusts quality automatically to hit the target while keeping the image sharp.
Download files individually or as a single ZIP. Processing takes 2-5 seconds per image. Files auto-delete after 2 hours for privacy.
Why Choose Our Image Compressor
Compress any image format with specialised algorithms — JPEG, PNG, WebP, AVIF, HEIC, BMP, TIFF, GIF, SVG, and more.
Need exactly 50 KB for a form upload? Our engine iterates through quality levels to find the setting that hits your target. For JPEG it adjusts quantisation; for PNG it uses palette reduction.
Compress up to 50 images at once with a single target size or customise each individually, then download everything as a ZIP.
La compression s'exécute sur nos serveurs en 2 à 5 secondes par image — pas de ralentissement du navigateur, pas de plugins et fonctionne sur tous les appareils, y compris les téléphones et les tablettes.
Uploads travel over 256-bit SSL encryption. We store nothing permanently — all files are automatically deleted within 2 hours of processing.
Lighter images mean faster Largest Contentful Paint (LCP) scores. Reducing page weight by 60-70 % can move your site from "Needs Improvement" to "Good" in Google PageSpeed.
Image Compressor FAQ
Quick answers about target file sizes, expected quality, privacy, and the best ways to reduce image file size.
How do I compress a file for free with the Image Compressor?
How small can I make my file?
Will compressing reduce quality?
What file formats does the Image Compressor support?
Mes fichiers restent-ils privés pendant la compression ?
Guides for Image Compressor
Read upload-limit, file-size, and quality-tradeoff guides related to Image Compressor.
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