KB Kit is a small collection of free tools for everyday file tasks – the kind of thing you need five minutes before a deadline, such as getting a photo under an upload limit.
What KB Kit does
Online forms often reject a photo, signature or scan that is over a size limit such as 20, 50 or 100 KB. Our image compressor reduces a JPG, PNG or WebP to a JPG at or under the limit you choose, with presets for 20, 50, 100, 200 and 500 KB. You can also set a maximum width and height; the image keeps its proportions and is not enlarged. We do not edit, crop or check your photo against any form's other rules, so always review the result before you submit it.
Our principles
- Private by design. Files are processed in your browser and never uploaded.
- No sign-up. Open the page and use the tool.
- Clear instructions. Every tool comes with a guide explaining how to use it and how to get the best result.
KB Kit is an independent, individually run project.
The site is intended to be supported by advertising, which keeps the tools free. If something does not work as expected, please let us know through the contact page.