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Tezmy Tools

Compress Image to 20KB

Reduce a photo to under 20 KB for exam, job and ID applications

Make each image smaller than

KB

Saved as JPG. Quality is lowered first, then the picture is made smaller if needed. The best quality that fits is kept.

Making big photos smaller saves the most space.

or drop your images here

JPG, PNG, WebP and more. Compress as many as you like. Nothing is uploaded.

Runs in your browser. Nothing is uploaded.

Photos under 20 KB for applications

Application portals for exams, government jobs, admissions and ID cards regularly ask for a recent photograph between about 10 and 50 KB, and 20 KB is one of the most common upper limits. A photo straight from a phone camera is far too big for that. With the target preset to 20 KB, this compressor re-saves your photo as a JPG and finds the highest quality that fits, only reducing the pixel size when quality alone can't get there. A face photo at 20 KB usually still looks clear on screen. It works in your browser, so there is nothing to install and nothing is uploaded.

Updated September 2026

How to compress a photo to 20KB

  1. 1Choose your photo, or several photos at once.
  2. 2The size box already says 20 KB. Change it if your form gives a different maximum.
  3. 3Wait a moment while each photo shows “Working…”, then check its new size.
  4. 4Download the photo that is marked “under 20 KB” and upload it to your application.

A good application photo in 20 KB

  • Crop to head and shoulders before compressing, so the file size is spent on your face.
  • Use a plain white or light background and face the light.
  • Look straight at the camera with a neutral expression.
  • Avoid photos taken at night or indoors in dim light, which come out grainy.

Common size rules on application forms

Most forms state a range in kilobytes (for example 10–20 KB or 20–50 KB), a file type (almost always JPG or JPEG) and sometimes pixel dimensions. This tool handles the kilobytes and the JPG part. For exact pixel dimensions, use Crop Image, which can set a width and height in pixels and a maximum file size at the same time.

What happens to the file

Your photo is decoded in the browser, drawn onto a canvas and saved again as a JPG. The tool tries several quality and size combinations, usually within a second or two, and keeps the best one under 20 KB. If your photo was already a JPG under the limit, it is left exactly as it was.

Several photos at once

Families applying together or teachers preparing student photos can drop many pictures in one go. Each is compressed in turn, and the Download all button saves them in a single ZIP file.

Features

  • 20 KB target ready
  • Keeps full pixel size whenever possible
  • Best quality that fits, never needlessly small
  • Batch compress and download as ZIP
  • Converts PNG and WebP pictures to JPG
  • Free, private, no watermark

Frequently asked questions

How can I reduce my photo to 20 KB on my phone?

Open this page in your phone's browser, tap Select images, pick the photo from your gallery and wait a second. Then tap the download icon next to it. No app or account is needed.

Will the photo be accepted if it's just under 20 KB?

Size is only one rule. Forms also check the photo itself: a recent, clear, front-facing picture on a plain light background, and sometimes a set width and height in pixels. Read the form's instructions for those too.

My form needs a photo between 20 KB and 50 KB. What do I do?

Type a number near the top of the range, like 45, instead of 20. The tool will keep more detail and the file will still be under the maximum. If you need a minimum, check that the result isn't below it.

Does compressing change how my face looks?

It removes fine detail and may add slight blockiness at very small sizes, but it doesn't change colours, shape or proportions. Keeping only your head and shoulders in the picture makes the result look much better.

How is this different from the passport photo maker?

This page only makes the file smaller. The Passport Size Photo Maker crops a photo to an official passport size and makes a print sheet. For an online form, crop first, then compress here.

Is my photo stored anywhere?

No. The photo is read, compressed and saved inside your browser. It is never uploaded to our server or shared.

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