Reduce Image Size in KB
Reduce a photo's file size to any number of KB you choose, entirely in your browser.
About Reduce Image Size in KB
Reduce the size of any image in kilobytes with a single target value. Enter the KB you need, and the tool compresses your JPG, PNG or WebP down to that size by adjusting quality (and dimensions when necessary). It's a fast way to meet the file-size limits on upload forms, email attachments and websites. Processing is 100% local — your images never leave your device.
How to use
- 1
Upload the image you want to shrink.
- 2
Type the file size you need in KB.
- 3
Click Compress to reduce it to your target.
- 4
Download the smaller image.
Tip: All processing is performed locally in your browser with zero loss in quality and no upload limits.
Frequently Asked Questions
More Image Tools You Might Like
Add Watermark to Image
Stamp text watermarks onto images with custom position, opacity, size and color.
AVIF to JPG
Convert AVIF images to universally-supported JPG format instantly and locally in your browser.
AVIF to PNG
Convert AVIF images to widely-supported PNG format instantly and locally in your browser.
BMP to JPG
Convert BMP bitmap images to compact JPG format instantly and locally in your browser.
BMP to PNG
Convert BMP bitmap images to compact PNG format instantly and locally in your browser.
Guides & Tutorials
How to Reduce Image Size in KB (Any Target You Want)
Learn the easiest way to reduce a photo's file size to any number of KB — set your target and download, all in your browser with no uploads.
How to Increase Image Size in KB (When a Form Says It's Too Small)
Some forms reject photos below a minimum file size. Here's how to increase an image to the required number of KB while keeping it a valid, viewable file.