100% private  ·  No file limits  ·  Free forever

Compress image
to 20KB.

Pick a photo and get a JPG under 20 KB automatically — ready for exam and government form uploads. Nothing is uploaded.

Output: JPG under 20 KB — change it after upload

Drop images here  or  browse files

Paste Ctrl+V to compress screenshots instantly

PNG JPEG WebP GIF BMP AVIF
No server uploads Unlimited files & sizes MozJPEG · oxipng · libwebp

# File size tools

Reduce photo size to 20KB — automatically

20 KB is one of the most common limits on Indian application portals — especially for signatures and small photos on recruitment, admission and scholarship forms. A phone photo is usually 2–5 MB, which is 100–250 times too big.

Instead of guessing a quality setting, this tool searches for the highest quality that fits under 20 KB. Large photos are also scaled down to a resolution that suits the limit — a smaller, clean image beats a large, blocky one — and you see the final size and resolution.

  • Always under the limit

    We target 20,000 bytes, so the file passes whether the portal counts 1 KB as 1000 or 1024 bytes.

  • Best quality that fits

    The highest quality under the limit is chosen, not just “as small as possible”.

  • Private

    ID photos and signatures stay on your phone or computer — nothing is uploaded.

How to compress an image to 20KB

  1. 1

    Click the box above and choose your photo or signature (JPG, PNG, HEIC-converted, WebP).

  2. 2

    It is automatically compressed to a JPG under 20 KB. The card shows the final size and dimensions.

  3. 3

    Download and upload it to your form. Need 10 KB or 50 KB instead? Change “Max size”.

Common 20KB upload requirements

Signature (many recruitment forms) JPG, about 10–20 KB
Photograph (smaller portals) JPG, about 20–50 KB
Thumb impression JPG, about 20–50 KB

Limits differ between exams and change between years — always follow the exact size, dimensions and format in your official notification.

# FAQ

Compress to 20KB: common questions

How do I reduce photo size to 20KB without losing quality?

Some quality loss is unavoidable at 20 KB, but this tool keeps as much as possible by choosing the highest quality that fits and only shrinking dimensions when needed. Start from a well-lit, tightly cropped photo for the best result.

Will the image be exactly 20KB?

It will be just under 20 KB. Forms set a maximum, so slightly under is what you want.

My form needs a minimum of 10KB — is that OK?

Yes. Because we pick the highest quality that fits, results normally land close to the 20 KB limit, well above a 10 KB minimum.

Can I do this on my phone?

Yes. Open this page in Chrome or Safari on your phone, choose the photo from your gallery and download the result.