Compress Image Reduce Image File Size

Compress JPG, PNG and WebP images without visible quality loss. Free, no upload, instant.

How to Compress an Image — Step by Step

Large image files slow down websites, take up storage, and are difficult to share by email. Doclair compresses JPG, PNG, and WebP images in your browser — no upload, no privacy risk.

1. Drop your image or click to upload. JPG, PNG, WebP supported.
2. Adjust the quality slider. Lower quality = smaller file.
3. Compare the before/after preview. See the file size reduction in real time.
4. Click Download to save the compressed image. No account required.

How much can I reduce image file size?

At quality 80 (the default), most images lose very little visible quality while shrinking by 50–70%. Photographs typically compress more than illustrations or diagrams. For web use, quality 70–80 is a good balance. For print, use quality 85–95.

Compress Image on iPhone and Android

Doclair works in mobile Safari and Chrome. Upload from your camera roll, adjust quality, and download the compressed image directly to your Photos library.

Frequently Asked Questions