Image Compressor

Each image is decoded and re-encoded by your browser at the quality you choose, and scaled down if it's larger than the maximum size. Most of the savings come from those two things: lowering quality a little is usually invisible in photos, and a 4000-pixel phone photo rarely needs to be more than 1920 pixels wide on screen.

You'll see the original and new size for every file before downloading. PNG is lossless, so for PNG files the savings come from resizing; switch the format to WebP or JPG for much smaller photos. If a result ends up bigger than the original, keep the original — that happens with images that were already heavily compressed.

Will compressing reduce the quality?

Slightly, at lower settings — but at around 70–80% quality the difference is hard to see in photos while the file is often less than half the size. Compare the before and after sizes and pick what works for you.

Which format gives the smallest file?

WebP is usually the smallest at the same visual quality and works in all modern browsers and apps. JPG is the safest choice for older software. PNG is best for screenshots and graphics with sharp edges or transparency.

Are my photos uploaded?

No. Everything happens in your browser, so your photos never leave your device.

Does it keep photos upright?

Yes. The browser applies the photo's rotation when it reads the image, so the compressed file is saved the right way up.