JPG to KB Converter

Make a JPG smaller, to a size in KB.

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 50 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 jPG to KB Converter

A JPG does not have a fixed size in kilobytes, and many forms ask for one anyway: for example a photo under 50 KB or 100 KB. This page turns a JPG of any size into a smaller JPG that fits the limit you type. It reduces the quality setting first, because that cuts the file size quickly while the picture still looks natural, and it reduces the pixel width and height only if quality alone is not enough. Because every picture compresses differently, two JPGs with the same dimensions can end up at different quality for the same limit: a plain studio portrait compresses well, while a busy scene with fine texture does not. The tool measures the saved file and tells you if the limit could not be met. That is more useful than a progress bar, since a form will reject the file regardless of how close it looked.

People search for JPG to KB when a form says a JPG must be under a certain number of kilobytes. This tool is built for that exact job. 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

This page accepts JPEG files and saves JPEG output. Start with 50 KB for forms that ask for small photos, or raise the limit to 100 or 200 KB for sharper results. If the picture still looks soft, try a larger limit before giving up.

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

Practical uses

A photo for an application that allows only a small JPG
A signature or ID scan with a KB cap
Making a thumbnail-sized JPG for a profile

Tips for a smaller file

Crop the JPG first so the subject fills the frame.
Do not compress an already-compressed copy; start from the original JPG.
If the limit is under 20 KB, expect a small picture.

Frequently asked questions

How do I convert a JPG to a specific KB?

Choose the JPG, type the KB limit and start. The tool reduces quality, then size if necessary, and shows the final KB.

What if my file is a PNG?

Use the main image compressor, which accepts PNG and WebP as well as JPEG.

Does it stay private?

Yes. The file is compressed in your browser and is never uploaded.

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.