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Reduce Image Size in KB

Type the size you need, such as 20 KB, 50 KB or 1 MB, and get the best-quality photo under that limit.

✓ No upload, 100% private✓ No sign-up✓ Works on phone & desktop
1 Add your images
Drop images here
or paste with Ctrl+V. You can add many at once
PNG · JPG · WebP · GIF · BMP · AVIF. Your images stay on your device.

How to reduce image size in KB

  1. Drop your photo or signature above, or paste it with Ctrl+V
  2. Type the maximum size the form asks for, or tap a chip like 20 KB or 100 KB
  3. The tool picks the highest quality under that size. Check the green ✓ fits badge
  4. Click Download. The file is ready to upload

Made for online forms

Job portals, exam applications, college admissions, government services and visa forms often accept photos and signatures only under a fixed size, for example "JPG, 20 KB to 50 KB". Getting under the limit by trial and error in an editor is slow.

Here you type the limit once. The tool tries quality levels automatically and keeps the best one that fits. If a large photo cannot fit even at low quality, it also reduces the pixel size step by step until it does.

Tips

  • Most forms want JPG. It is selected by default here.
  • If a form also asks for exact dimensions (for example 200 × 230 px), resize first with the image resizer or crop tool, then reduce the size here.
  • If a form has a minimum size too (for example 20–50 KB), set the maximum to 45 KB. Photos rarely end up far below the limit, because the highest quality that fits is used.

Frequently asked questions

Quick answers about the reduce image size in kb tool.

How do I compress a photo to 20 KB?

Drop the photo above and tap 20 KB (or type 20). Download it when the badge says it fits.

Will my photo still look good?

The tool always uses the highest quality that fits your limit. For very small limits like 10–20 KB, it also lowers the pixel size, which keeps the photo clear for its size.

Can I reduce many photos at once?

Yes. Drop them all in. Each one is compressed to fit the limit, and you can download them together as a ZIP.

Why does it say "could not reach"?

The limit is extremely small for that image. Try a slightly larger limit, or crop the photo first so there is less to store.

Is my photo uploaded anywhere?

No. Everything happens in your browser, so it is safe for ID photos and signatures.

More free image tools

Everything runs in your browser. Nothing is uploaded.