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Compress WebP Images

Further reduce WebP file size for optimal performance

Upload Image

Drop image here or click to upload

JPEG, PNG, WebP supported

Quality: 80%
Output:

Processed in your browser during compression

Compressed image appears here

Upload an image, adjust quality, and hit Compress.

WebP is already one of the most efficient image formats available — developed by Google specifically for the web, it offers 25-35% smaller file sizes than JPEG and PNG at equivalent quality. But even WebP images can benefit from further compression, especially when exported from tools at maximum quality settings or when you need to hit specific file size targets for performance budgets, CDN optimization, or platform upload limits.

Coda One's WebP compressor lets you re-encode WebP images at a lower quality level to achieve even smaller files. The quality slider gives you fine-grained control: reducing from 100% to 80% quality typically cuts file size by 40-60% with minimal visible difference. This is particularly useful for batch-optimizing large image libraries, meeting strict performance budgets, or preparing images for bandwidth-constrained scenarios like email campaigns or mobile-first websites.

The tool processes everything in your browser using the Canvas API. It supports WebP input and can output as WebP, JPEG, or PNG depending on your needs. Start with one image, adjust quality, and download the optimized version. For teams managing hundreds of WebP assets, that browser-first workflow is practical for recurring optimization work.

Frequently Asked Questions

If WebP is already compressed, why compress it further?
WebP files exported at 100% quality or from certain tools are larger than necessary. Re-encoding at 80-85% quality removes data the human eye can't perceive, typically saving 40-60% with no visible difference. It's the same principle as compressing a high-quality JPEG.
Does compressing WebP affect image transparency?
If you keep the output as WebP, transparency is preserved during compression. If you convert to JPEG, transparency is lost (replaced with white). WebP-to-WebP compression is the safest option for images with alpha channels.
What quality setting should I use for WebP on the web?
For most web use, 75-85% quality produces excellent results — visually identical to the original with significantly smaller file size. For hero images or product photos where quality is critical, use 85-90%. For thumbnails and preview images, 60-70% works well.
Can I convert WebP back to JPEG or PNG?
Yes. Select "JPEG" or "PNG" as the output format. This is useful when you need to share images with people or systems that don't support WebP, though file sizes will be larger than the WebP original since JPEG and PNG are less efficient formats.
Is WebP supported in all browsers and applications?
WebP is supported in all modern browsers (Chrome, Firefox, Safari, Edge) since 2020+. Some older desktop applications and email clients may not display WebP. If you need maximum compatibility, convert to JPEG. For web use, WebP is universally safe.
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