Free online tool
Compress to Target Size
Aim for a specific file size without trial and error.
Compress an image toward a target KB size
Automatically test JPG quality levels to get close to the file-size limit you enter.
- Accepts common browser-readable images
- Searches for a suitable JPG quality automatically
- Shows the final downloadable file size
Important limitation: The result is a best effort, not an exact byte guarantee. Some detailed images cannot reach very small targets without resizing.
Why is the result below my target?
The tool stays at or below the target when possible rather than exceeding it.
Can it always reach 20 KB?
No. Pixel dimensions and image complexity impose a practical minimum.
How to use this tool
- 1Choose or drop your file.
- 2Adjust the available options.
- 3Process and download the result.
Private browser processing
Your file is processed on this device and is not uploaded to our server.
Frequently asked questions
Is my file uploaded?
No. File processing happens locally in your browser.
Does it work on phones?
Yes. It works in modern mobile and desktop browsers.