ToolBoxImage Compressor to KB
Shrink a picture to a size you choose, such as 100 KB.
Free · No signup · Files stay on your device
or drop a file here
How to use Image Compressor to KB
- 1Click the Select button and choose your file, or drag and drop.
- 2Fill in the options shown on the page.
- 3Press the Image Compressor to KB button.
- 4Download your result.
Your files stay private
Your file is processed on your own device. It is never uploaded to our servers.
Frequently asked questions
Is Image Compressor to KB free?
Yes. ToolBox is 100% free. No signup, no watermark, no daily limit.
Are my files uploaded to a server?
No. All work happens inside your browser on your own device. Your files never leave your phone or computer.
Does it work on mobile?
Yes, on Android, iPhone, tablets and desktop. Very large files can be slow on older phones.
What are the limits of Image Compressor to KB?
Very small targets may also reduce the picture dimensions.
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Image DPI / Resolution Info
Check the DPI stored in a picture and its print size.