Compress Image to 100KB

Drop a photo and get it back under 100KB, automatically. Free and private.

Why 100KB specifically

100KB is the most common ceiling on job portals, scholarship forms and university applications. It is comfortable enough that a well-cropped photo or a scanned document still looks clean.

Forms almost never explain how to meet their limit. They reject the upload, show a red message and leave you to work it out. This page exists so you can drop the file in and get one that fits.

How the tool hits the target

It compresses in steps. First it lowers the JPG quality gradually, checking the resulting size after each attempt. If quality alone is not enough, it starts reducing the image's dimensions as well, then tries again.

That order matters. Dropping quality straight to the floor produces the blocky, smeared look everyone recognises. Reducing dimensions first keeps the image looking clean, because fewer pixels stored well beats many pixels stored badly.

The final size is shown next to the file before you download, so you can confirm it fits.

Getting the best quality at a small size

Crop before you compress. If the form only needs your face or a document, trimming away the surroundings means the remaining detail gets all the available file size.

Start from the original rather than a screenshot. Screenshotting a photo and compressing that stacks two rounds of quality loss on top of each other.

Avoid images with a lot of fine texture — grass, crowds, patterned fabric — when a small target is required. Compression struggles most with busy detail, and a plain background compresses far more gracefully.

Your file is never uploaded

The images people compress for forms are usually identity documents, photographs of themselves, signatures or certificates. Those should not be sent to an unknown server just to change a file size.

Everything here runs inside your browser. The image is read from your device, compressed in memory and handed straight back. Nothing is transmitted, nothing is stored, and no account is needed.

Frequently asked questions

How do I compress an image to 100KB?

Drop your image above. It is automatically compressed until it fits under 100KB, then you download it. No settings to work out.

Will the photo still be usable?

For most photos, yes. The tool reduces quality and dimensions gradually until the target is met, so it takes the least damaging route available. Very small targets on a very detailed photo will visibly soften it — that is unavoidable at any tool.

Which formats can I upload?

JPG, PNG and WebP all work. The result is always a JPG, since that is what form uploads expect and what compresses best for photographs.

Can I compress a scanned document to 100KB?

Yes, and documents compress better than photos because they are mostly flat white. Make sure the text is still readable after compressing before you upload it.