Image Tools
Image Compressor

Compress WebP Under 20KB — Free Online

Need a WebP file under 20KB — for an email attachment, a form upload limit, or a faster-loading web page? WebP files are re-encoded as JPEG internally to reach small target sizes, since JPEG compresses photographic content more efficiently than other formats. Upload your image, drag the quality slider, and download once it's small enough.

Quick Reference

FormatWebP
Target sizeUnder 20KB
Typical quality needed40–60%

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100% browser-based — your image is never uploaded to a server.

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Frequently Asked Questions

How do I compress a WebP to under 20KB?+
Upload your WebP image to the free compressor, then drag the quality slider down until the displayed file size is under 20KB. Lower quality means a smaller file but more visible compression artifacts.
Why is my WebP still large after compressing?+
Very large or highly detailed images may need a lower quality setting, or resizing the image dimensions first, to reach a small target size like 20KB.
Does this upload my image to a server?+
No. Compression runs entirely in your browser using the Canvas API — your image never leaves your device.

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