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Compress an image to 50 KB

Fifty kilobytes is very small. Forms for exam applications, ID photos and some government sites ask for this.

  • Nothing is uploaded. Your browser does the compression, so the file stays on your device.
  • Lands under the real limit. We aim a little below it, so the upload goes through first time.
  • Fast. A 30 second 1080p clip fits into 10 MB in about two seconds on a desktop.
Where are you sending it?

Custom size 50 KB. We aim for 49 KB, a small safety margin so the file never lands just over.

Sent to our servers: 0 bytes. It all happens in this tab.

When you need 50 KB

Passport-style photos, signature images, and exam portals.

What to expect

Expect a modest pixel size, often around 400 to 600 pixels wide for a photo. Faces and text stay readable, large detail does not.

How big a picture fits in 50 KB

Rough pixel sizes at good quality. The tool checks the real result, so treat these as a guide.

What it isAbout this many pixels
Detailed photo (landscape, crowd)400 x 270
Typical photo or headshot490 x 330
Scan, signature or screenshot of text850 x 570

How we hit the number

We try the highest quality that fits. If the picture still will not fit even at a lower quality, we reduce the pixel size a step at a time until it does. Photos are saved as JPEG by default, which every form accepts. You can switch to WebP or PNG with the format menu.

The target we aim for is 49 KB, which is 2 KB under 50 KB, so the file is not turned away over a few bytes.

Questions people ask

Is 50 KB too small for a photo?

For a headshot, no. For a detailed landscape, yes. We shrink the image until it fits, so tell us what you need and check the result.

Related

Limits change. We link the official page wherever there is one, and the safety margin means a small change is unlikely to matter. Last updated 2026-11-09.