Compress WebP images even further. Re-encode existing WebP files at lower quality to reduce file sizes without format conversion. Perfect for optimizing inherited assets or squeezing out extra performance. All processing happens in your browser.
WebP is already an efficient format, but there's often room to squeeze more savings — especially for images that were converted to WebP at maximum quality or exported from tools that don't optimize aggressively. This compressor lets you dial in the exact quality level you want and see the file size reduction in real-time. Batch processing with ZIP download included.
When to Compress WebP Images
WebP is already an efficient format, but there are situations where additional compression helps:
- Inherited assets: WebP files from unknown sources may be oversized
- High-quality exports: Design tools often export at 90-100% quality
- Performance optimization: Every KB matters for Core Web Vitals
- Bandwidth constraints: Mobile users benefit from smaller images
Why Use WebP Compressor?
Reduce File Sizes Further
Already have WebP images? Re-encode them at lower quality to squeeze out additional size savings. Perfect for optimizing inherited assets or oversized exports.
Never Worse Guarantee
Our "keep smaller only" option ensures you never get a larger file than your input. If compression doesn't help, we keep your original.
Faster Website Loading
Smaller images mean faster page loads, better Core Web Vitals scores, and improved user experience. Every KB matters for performance.
Completely Private
All compression happens locally in your browser. Your images are never uploaded — they stay securely on your device.
How to Compress WebP Images
- Upload your WebP image(s).
- Choose a quality preset or use the slider.
- Enable "Keep smaller only" for safety.
- Click Compress and download optimized files.
Features
Adjust quality level
Compress multiple files
60-90% options
Reduce dimensions too
Never get a larger file
All files at once
Quality Settings Guide
| Quality | Best For | Expected Savings |
|---|---|---|
| 85-90% | Hero images, product photos | 10-30% |
| 75-80% | General web images (recommended) | 30-50% ✓ |
| 60-70% | Thumbnails, backgrounds, previews | 50-70% |
Who Uses This Tool?
Web Developers
Optimize WebP assets for maximum performance
Content Managers
Compress inherited or oversized WebP files
Performance Engineers
Squeeze every KB for Core Web Vitals
Designers
Reduce exported WebP file sizes