Compress WebP
Re-encode WebP files at the quality level you choose.
Drop WebP files here or click to browse
Processing happens on your device. Nothing is uploaded.
100% Private
Files are processed locally in your browser. They never touch our servers.
Smart Defaults
Sensible settings are applied automatically. Fine tune them only if you want to.
Batch Processing
Drop multiple images at once and download everything together as a ZIP.
How to use Compress WebP
- Drop your images onto the page, or click to pick them from your device
- Use the default settings, or adjust the options for your file type and target result
- Download the finished images one by one, or save the full batch as a ZIP
What Compress WebP is for
Use the WebP Compressor when you already have WebP images and want to make them smaller for a website or web app. It helps reduce image weight while keeping the modern WebP format.
- Make WebP images smaller for modern websites and web apps.
- Reduce already-converted WebP files without switching formats.
- Optimize image assets for faster page loads and smaller downloads.
- Prepare WebP images for blogs, landing pages and ecommerce stores.
Best practices for better results
Image optimization works best when you choose the right balance between file size, visual quality, dimensions, format compatibility and privacy. These tips help you get a cleaner result.
- WebP is useful for modern websites, but keep a JPG or PNG fallback if an older workflow requires it.
- Use a slightly higher quality setting for images with text or sharp edges.
- Compare the output visually when compressing an image that has already been optimized once.
- Use WebP when your goal is faster website loading and smaller image downloads.
WebP compression, explained
WebP compresses with lossy techniques similar in spirit to JPEG, but with a more modern toolkit: better prediction, smarter entropy coding, and native transparency. The quality slider works exactly the way it does for JPEG, and 80 is the sweet spot for the web.
Where WebP lands against the other photo formats at matching visual quality:
This page is a WebP compressor in the strict sense: WebP in, smaller WebP out. If you already have WebP assets from an export pipeline or a download that came out heavier than they should, re-encoding at quality 75 to 80 often halves them.
Why WebP files still end up too big
- Quality 100 exports. Design apps and CMS plugins default to maximum quality, producing files two to four times larger than needed
- Oversized dimensions. A 3000 pixel WebP in an 800 pixel blog column carries nine times the pixels anyone will see: resize it down
- Double conversion. A heavily compressed JPEG converted to WebP at high quality just preserves the old artifacts in a new wrapper
Compress WebP for real world page speed
WebP only pays off when the files are actually small. A well compressed hero image under 150 KB is often the difference between a Largest Contentful Paint that passes and one that drags. Batches process in parallel on your own hardware with no upload, so a hundred images compress as privately as one, and the whole set downloads as a ZIP.
Related image tools
These tools solve similar image optimization problems and work the same way: locally in your browser, with no required upload.
- Compress Image: Reduce the file size of JPG, PNG and WebP images
- Compress JPEG: Reduce JPG file size with smart quality compression
- Compress PNG: Optimize PNG files losslessly for smaller downloads
- Compress HEIC: Shrink iPhone HEIC photos for easy sharing
Compress WebP FAQ
Is Compress WebP free to use?
Yes. Every tool on CompressImage.ca is free to use, with no signup, no watermarks and no daily limits.
Are my images uploaded to a server?
No. Processing happens locally in your browser using your own device. Your files never leave your computer or phone.
What image formats are supported?
JPG, PNG and WebP work across the main tools. AVIF and HEIC are supported in the tools that specifically mention them.