Compress image to 30 KB

Reduce a photo to under 30 KB for your application form. Free, instant and private.

Free, no sign-up
Files never uploaded
No watermark
No limits

Choose a photo or drop it here · JPG, PNG, WebP, HEIC

Target sizeKB Width (optional)px Height (optional)px

Your photo is processed in your browser and is never uploaded.

How to compress an image to 30 KB

Tap Choose a photo and pick an image from your phone or computer.
Check the target size. Change it if your form needs something different.
Tap Download JPG and upload the file to your form.

Who needs a 30 KB photo?

Some exam, recruitment and admission portals accept photos between a minimum and maximum size, for example 10 KB to 30 KB. A 30 KB limit leaves enough room for a clear photo if the image is the right size.

Best size for a 30 KB photo

A face photo of around 500 to 700 pixels wide usually fits under 30 KB at good quality. DocSlim finds that balance for you. It starts at high quality and reduces the dimensions only as much as needed.

Tips

Check whether your form also lists a minimum size. If it does, the result here will normally sit close to 30 KB, comfortably above most minimums.
If the form gives exact pixels or centimetres, convert them to pixels and enter them in the width and height boxes.

Frequently asked questions

How do I convert a photo to 30 KB?

Choose your photo above. DocSlim compresses it to just under 30 KB and you can download the JPG right away.

Will the photo still look clear?

Yes, for a face or document photo used on a form. The tool keeps the highest quality that fits in 30 KB.

Is my photo uploaded to a server?

No. The compression runs inside your browser on your own device. Your photo is never uploaded, stored or seen by anyone.

Is this tool free?

Yes. It's completely free, with no sign-up, no watermark and no limit on how many images you compress.

Why is the result a little under the limit instead of exactly the limit?

Forms reject files that are even one byte over. DocSlim counts 1 KB as 1,000 bytes and aims just below your limit, so the file passes whether the website counts 1 KB as 1,000 or 1,024 bytes.