Compress an image to 20 KB

How it works

1. 1Drop your image — everything runs in your browser, nothing is uploaded anywhere.
2. 2We binary-search JPEG quality to find the highest setting that still fits under 20KB — the strictest common target, so this search works hard.
3. 3If quality alone can't reach 20KB, dimensions are downscaled as needed, keeping the photo recognizable at typical ID-photo display sizes.

When you need this

Online application forms, government portals, university admissions, job sites and e-mail attachments often reject files over a strict limit. FileNorm finds the best quality that fits under that limit, so your document is accepted the first time.

Frequently asked questions

Why would a portal require such a tiny 20KB limit?

20KB is the strictest common cap you'll run into — some older or high-volume Moroccan government and concours systems enforce it to keep upload servers fast across huge numbers of applicants. It's usually reserved for small ID-style photos, not full documents.

Will a 20KB photo actually look okay?

At ID-photo dimensions (a few hundred pixels), yes — compression is aggressive but still readable. At full photo resolution, 20KB looks visibly soft; this target works best paired with a proper crop to ID-photo size first.

What file formats does this accept?

JPEG, PNG and WebP as input. Output is JPEG (PNG transparency is composited onto white).

Is my photo uploaded to a server?

No. All compression happens in your browser via WebAssembly. Your file never leaves your device.

Is it really free?

Yes — no account, no watermark, no limit on the number of files.

Other target sizes