Free tool

Compress image to 50 KB small enough for any application form.

Drop a photo or a scanned signature, keep the 50 KB target, download a file the portal accepts the first time.

Compress image to 50 KB at a glance

content.win compresses images to an exact size in KB, with no daily cap, which most free compressors only offer behind an account. It never returns a file larger than the one you gave it.

Works with
JPG, PNG and WebP. Several at once.
Comes back as
The same format, smaller, at an exact target size in KB or at a quality you pick.
Runs
In your browser.
Limits
No daily limit and no cap on how many files. Images up to 24 megapixels.
Price
Free. No account, no watermark.

How to compress an image to 50 KB

  1. Drop the images in. JPG, PNG or WebP, one or several.
  2. The target is already set to 50 KB. Change the number if the form says something else.
  3. Download. Each file lands at or under the target.

Getting under 50 KB

Photos
A passport-style photo at 600 by 800 pixels fits in 50 KB as a JPG with room to spare. Resize a full-size phone photo first and it stays sharp.
Signatures and scans
A signature scanned as a PNG can be large because of noise. Saving it as JPG, or cropping to the ink, brings it well under 50 KB.
Pixel size too
Many portals state both a pixel size and a KB size. Resize first, then compress.

Questions people ask

Will a photo look fine at 50 KB?

At 600 to 1000 pixels wide, yes. The tool keeps as much detail as the target allows and shows the result first.

Does it work for a signature image?

Yes. Drop the scan; for the smallest file choose JPG as the output or crop to the signature first.

Can I change the target?

Yes, to any number from 5 KB up.

Can I do several at once?

Yes. Every file in the batch is brought to the same target.