Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Compress image until it fits under a target size in kilobytes.
Click or drag image here
JPG, PNG, WebP supported · Max recommended 25MB
Need to resize your image to a specific file size in KB? Our free tool lets you set an exact target size — whether you need a photo under a specific KB limit for an online form, job application, or government portal. The tool automatically adjusts quality to hit your target size.
Resize to KB works by re-encoding the image data rather than changing its pixel dimensions, so the photo looks the same size on screen but takes up less storage and loads faster. The right setting depends on the photo: images with lots of fine detail (text, patterns) need a higher quality setting than simple photos with large smooth areas like skies or plain backgrounds.
Yes. Enter your target KB size and our tool will automatically adjust image quality to get as close as possible to that size.
Image compression works in increments so the output may be slightly above or below your exact target. It will always be within a close range.
Very small targets like under 10KB may result in visible quality loss as heavy compression is needed.
No. Only the file size is reduced through quality adjustment. Dimensions stay the same.
JPG and PNG are fully supported. For best results with small KB targets, use JPG format.
At moderate settings, most compression is invisible to the eye. Very aggressive compression can introduce visible blockiness in fine detail.
JPG generally compresses photos far smaller than PNG. PNG suits graphics, logos, and images needing transparency.
No. Compression happens directly in your browser using JavaScript — your image never leaves your device.
Yes, enter your target file size in KB and the tool automatically adjusts compression to get as close as possible to that size, which is exactly what's needed for forms that specify a maximum upload size like 50KB or 100KB.