Compress image
to the size you need

How to compress a photo to a size in KB

1. Choose a Target size in the settings panel, from Under 10 KB to Under 500 KB. Under 100 KB is the default.
2. Choose a photo or drop it on the page. JPG, PNG, HEIC, WEBP, AVIF and BMP all work, and you can add several.
3. Each photo is compressed right away. The list shows its size before and after.
4. Press Save next to a photo, or Download to save them all (several come as one ZIP).
5. Changed the target afterwards? Press Apply to all files.

How it fits your photo under the limit

The result is always a JPG. The tool starts at high quality and searches for the highest quality that still fits. Only if the file is still too big at fairly low quality does it make the picture smaller in pixels, a step at a time, and search again. That way the picture keeps as much detail as the limit allows.

• Target size: the most the file may weigh: 10, 20, 30, 50, 100, 200 or 500 KB.
• Largest side: Shrink only if needed (the default) leaves the pixel size alone unless the limit forces it. Max 2000, 1200 or 800 px makes the picture that size first, which often gives a sharper result at small file sizes.

Choosing the right target

Pick the limit the form states, or the next one below it. If a portal says “maximum 50 KB”, choose Under 50 KB; if it says 40 KB, choose Under 30 KB. Going much lower than you need only costs quality.

As a rough guide, a passport-style headshot looks fine at 20 to 50 KB, a full phone photo needs 100 to 200 KB to stay sharp, and a photo of a document needs enough size for the text to stay readable, so check it before you submit.

Common problems and fixes

• “Can’t get under N KB, even made very small”: the limit is too tight for this picture. Choose a higher limit, or crop away background with Crop image first.
• The form also asks for exact pixel dimensions: use Resize image, which takes a width and height plus a file size limit.
• The form wants a PNG: this tool always saves JPG, which is what most size-limited forms expect.
• Transparent parts turned white: JPG has no transparency, so they are filled with white.

Tips

• For a passport or visa photo, use Passport photo maker. It crops to the right shape and has its own file size limit.
• For a scanned signature, Signature resizer cleans the paper away first, which makes the file much smaller.
• Crop first. Less picture means more quality for the part that matters.
• There are ready-made pages for common limits: Compress image to 20 KB, 50 KB, 100 KB and 200 KB.

Privacy

Your photo is decoded and re-encoded by your browser. It isn’t uploaded, and the new JPG doesn’t carry over camera details or location data stored in the original.