Compress JPG, PNG, and WebP images online without losing noticeable quality. Reduce file size instantly in your browser with no uploads, ensuring your images remain private and secure.
Click here to choose JPG, PNG or WEBP
Image Compressor is a free online tool that helps you optimize image files by reducing their size while preserving visual quality. Since all processing happens locally in your browser, your files remain private and secure. It's ideal for improving website performance, reducing storage usage, and sharing images more efficiently.
The quality slider balances file size against how good the image looks. Lower quality means a smaller file, but too low can make images look blurry or blocky. As a starting point:
| Quality | Result | Good for |
|---|---|---|
| 80–90% | Looks almost the same as the original | Portfolios, product photos and important images |
| 60–80% | Good balance of quality and size | Blog posts, websites and email |
| 30–60% | Much smaller, with visible quality loss | Thumbnails and previews |
Use the preview and the before and after file sizes to find the lowest quality that still looks good to you.
This tool saves your compressed image as a JPG file. If you upload a PNG with a transparent background, the transparent areas become a solid colour, so keep the original PNG for graphics that need transparency.
Yes, a little, but at a moderate setting such as 70–80% the difference is usually hard to notice while the file becomes much smaller. Use the preview to check before you download.
No. Your image is compressed in your browser and never leaves your device.
The compressed image is saved as a JPG file, whatever format you uploaded.
JPG does not support transparency, so transparent areas are filled with a solid colour when the image is converted. Keep your original PNG if you need a transparent background.
For most websites, 70–80% gives a good balance between small file size and good looks. Go higher for important photos and lower for thumbnails.
You can, but each compression removes more detail, so repeatedly compressing an image makes it look worse. Always compress from your original file instead.
