Compress JPEG to 30 KB

Compress a JPEG to 30 KB without uploading it.

or drop an image anywhere on this page

JPEG only (.jpg, .jpeg) · up to 50 MB

Files never leave your device
Free, no sign-up
No watermark

How to use this tool

Choose a JPEG file, or drag it onto the drop area. Only .jpg and .jpeg files are accepted on this page.
Check the target size (currently 30 KB). It is editable, so change the number or the KB/MB unit if your limit differs.
Press the button. The tool lowers the quality first, then reduces the dimensions step by step if the file is still too large.
Compare the preview and the measured output size with the original, and read any notes or warnings.
Download the new file. If it missed the target, adjust the target slightly or crop the original, and try again.

What to know before you compress JPEG to 30 KB

Thirty kilobytes is where small JPEGs start to look comfortable. A portrait at this size can keep skin tones and facial features clean at reduced dimensions, with only mild blockiness in the hair and clothing. Compared with 20 KB, you gain roughly 50% more data, which usually means either higher quality or larger dimensions, whichever your source supports. A camera original of several megabytes has to lose over 99% of its weight to land here, so the tool will scale the image substantially. That is normal and unavoidable: no setting can keep a 12-megapixel photograph and also fit in 30 KB. If the output looks too rough, one more step up to 40 KB is often a visible improvement.

Thirty kilobytes gives enough room for clear faces at small sizes. Large camera originals will be scaled down considerably to fit. The size you enter is a goal, not a promise: the result depends on the original image, its dimensions, its complexity, its format and your browser's encoder, and the tool reports the real size instead of assuming it.

Recommended settings and supported formats

JPEG only on this page. Keep the target at 30 KB unless your form allows more. Crop to the subject before compressing, and avoid heavy filters or grain in the original, since noise is expensive to encode.

Accepted input: JPEG (.jpg, .jpeg). Output is always JPEG, and transparent areas, if any, are filled with white.

Practical uses

Government and exam portals that cap photos at about 30 KB
Staff, student or membership ID photo uploads
Lightweight avatars for apps with strict storage limits

Tips for a smaller file

Crop first; it helps more than any slider.
Remove filters, sharpening and heavy grain before compressing.
Check the output at 100% zoom to catch artefacts.
Try 40 KB if faces look blotchy at 30 KB and the form allows it.

Frequently asked questions

How big will a 30 KB JPEG be in pixels?

It varies widely with the image. Simple pictures can stay larger; detailed ones get smaller, and the exact dimensions are shown with the result.

Will my original file be changed?

No. The tool creates a new compressed copy for you to download and leaves your original file untouched.

Why does the result sometimes land under 30 KB instead of exactly 30 KB?

The tool keeps the largest result that fits among its attempts. A result a little under the target is normal and keeps the highest quality that qualifies.

Related image size tools

Privacy

Your image is processed entirely in your browser using your own device. It is not uploaded to Paul Digital or any other server, and nothing is stored once you close the page.