Compress Image to 350KB

Upload your photo, check that the target says 350 KB and click the compress button. Your smaller image is ready to download in a few seconds.

Yes, whenever possible. The tool never goes over 350 KB — it finds the best look that fits. If a picture can't get that small, you'll see a clear message and get the smallest version we could make.

At 350 KB images look sharp and detailed on phones and computers, with no visible loss for most photos.

Yes. PNG stays PNG and keeps its sharp edges. For photos saved as PNG, converting to JPG first gives a much smaller file.

It depends on the photo, but as a guide a typical phone photo comes out about 2,300–3,000 px wide at 350 KB, with good quality. Simple pictures like signatures can stay wider; busy, detailed photos come out a little smaller.

350 KB gives about 17% more room than 300 KB, so photos come out a little wider (about 2,300–3,000 px instead of 2,100–2,750 px) and sharper. Always pick the biggest size your form or website allows — it gives the best quality.

Yes. JPG stays JPG, PNG stays PNG and WEBP stays WEBP, so the website you upload to accepts the same format you started with.

Yes. Select several images together. Each one is compressed to your target size, and you can download them all in one ZIP file.

Yes. Type a number in Max Width to make the picture narrower. For exact width and height, use our Image Resizer first.

Yes. JPG, WEBP and PNG images are all compressed right in your browser and never leave your device. Nothing is uploaded or stored.