Compresseur d'images gratuit en ligne
Compress JPEG, PNG, and WebP images up to 80% smaller. Instant results, no upload to any server.
Supports JPEG, PNG, WebP · up to 50 MB each
How It Works
- Select or drop one or more images above.
- Adjust quality slider (lower = smaller file, more compression).
- Images are compressed in your browser · nothing is uploaded.
- Download compressed images individually or all at once.
Why Compress Images?
Large images slow down websites, increase bounce rates, and hurt your Google ranking. Compressing images reduces file size by 50-80% with minimal visible quality loss. This is essential for web developers, bloggers, e-commerce stores, and anyone who publishes content online. Smaller images also save bandwidth on mobile devices and improve Core Web Vitals scores.
Supported Formats
- JPEG · Best for photos and complex images. Lossy compression with adjustable quality.
- PNG · Best for graphics, logos, and images with transparency.
- WebP · Google's modern format offering smaller files than JPEG/PNG at comparable quality.
Frequently Asked Questions
Does compression reduce image quality?
At the default 60% quality, most images look nearly identical to the original while being 50-80% smaller. Adjust the slider to find the right balance for your needs.
Is there a file size limit?
Each image can be up to 50 MB. Since processing happens in your browser, very large files may take a moment depending on your device.
Are my images uploaded to a server?
No. All compression happens locally in your browser. Your images never leave your device, making this completely private and secure.
What quality setting should I use?
For web use, 60-70% is ideal. For print or portfolios, try 80-90%. For maximum compression (thumbnails, email), 30-50% works well.