Resize Image to 20 KB
Compress toward 20 KB with a preset file-size target. Adjust pixel dimensions and quality, then inspect and download your image.
Your image stays on your device: processing happens locally in the browser, with no upload to our servers. For large files, processing can use significant memory. Save the output using the Download button.
Examples: 20 KB, 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, 2 MB. JPG or WebP recommended. Output is approximate; complex images may need smaller dimensions.
Small signature and document thumbnails
A very small upload limit leaves little room for texture. Start with the dimensions required by the form and a tightly framed source; review thin strokes and text after compression.
How to compress toward 20 KB
- Choose an image from your device. The target field is already set to 20 KB.
- Enter any pixel dimensions required by the destination. Keep aspect ratio enabled to avoid stretching.
- Choose JPG or WebP, press Resize / Compress, and download the result.
Practical example
For a signature image, use only the required signature area in your source file. Aim for legible strokes rather than a large empty margin. This tool resizes and compresses but does not crop the source for you.
Check the actual downloaded size
The target is approximate. The tool may reduce quality and dimensions in several steps. If it cannot reach the target within its limits, try a smaller width or height. PNG has limited size control. The size calculation uses 1024 bytes per KB and 1024 KB per MB; a receiving site may count bytes differently.
Frequently asked questions
Will the result be exactly 20 KB?
No exact byte count is guaranteed. Check the downloaded file against the receiving limit. Use a slightly lower target if the destination applies a strict or differently calculated limit.
Can I keep the same dimensions?
The initial encoding uses your chosen dimensions. If the target cannot be reached by adjusting quality, this tool may reduce dimensions further. Check both dimensions and size after download.
Does the photo leave my device?
The resize operation runs locally in your browser. The page also loads advertising and optional analytics; see the privacy policy for site-wide details.
More image sizes and formats
Custom image dimensions and size · Change image format · All free tools