WebP Compressor Online
Make existing WebP files smaller by recompressing them at a lower quality setting. Compare size savings and download optimized WebP files privately.
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Supports multiple files · no signup · no watermark
WebP Compressor Online · 100% browser-based · no server upload
Complete Guide to Converting Images to WebP
WebP files are already efficient, but they can often be made smaller. This free WebP compressor re-encodes existing WebP images at an adjustable quality setting directly in your browser.
Use it when a WebP file is still too large for a website, email, upload form, CMS, or performance target.
How to Compress WebP Files
- Upload one or more WebP images.
- Choose a lower quality setting.
- Recompress the files locally in your browser.
- Check original size, new size, and savings percentage.
- Download each optimized WebP file.
Best WebP Compression Settings
| Goal | Suggested quality |
|---|---|
| Maximum compression | 55–70% |
| General web images | 75–85% |
| Product photos | 82–88% |
| Hero images | 86–92% |
If a WebP file was already heavily compressed, the savings may be smaller or the output may even become larger. Compare the result before replacing your original.
Avoid Repeated Recompression
Repeatedly compressing the same image can compound quality loss. Keep your original source file and export a fresh WebP version whenever possible.
For more guidance, read best WebP quality settings.
Related Tools
Use the WebP compressor above to reduce WebP file size privately.
Frequently Asked Questions
Common questions about WebP conversion and privacy.
Can WebP files be compressed again?
Yes. WebP images can be re-encoded at a lower quality setting to reduce file size further. Avoid repeated recompression if you need maximum visual quality.
What quality setting should I use?
For most web use, a quality setting of 75–85 provides an excellent balance between file size and visual quality. Lower values reduce file size further; higher values preserve more detail.
Are my images uploaded to a server?
No. All conversions happen entirely in your browser using the Canvas API. Your images never leave your device, making this tool fully private and secure.
Is there a file size limit?
There is no server-side limit because files are processed locally. Very large images may be limited by your device memory and browser capabilities.
Can I compress images without losing quality?
Any lossy compression can remove some image data, but high WebP quality settings usually look visually close to the original. Start around 80–85 quality and increase it if you notice artifacts.
How does WebP improve SEO?
Smaller images load faster, which improves Core Web Vitals metrics like Largest Contentful Paint (LCP). Google uses page speed as a ranking factor, so optimized images can help your SEO.
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