Compress WebP images with adjustable quality settings for optimal file size and visual quality.
Drag & drop files here
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Max file size: 10MB · Max 2 files at once
WebP is already an efficient format, but you can squeeze even more savings out of your images by adjusting the quality setting. ConvertFile compresses your WebP files on our secure server, letting you find the perfect balance between file size and visual quality.
Select or drag and drop your WebP files
Adjust the quality slider to your desired balance
Click Compress and download your optimized WebP
Even though WebP is one of the most efficient image formats available, many WebP images are saved at higher quality than necessary. A WebP at 100% quality is significantly larger than the same image at 80% quality, with minimal visible difference.
Compressing WebP files is valuable when you need to optimize web assets further, reduce CDN bandwidth costs, or meet specific file size requirements for platforms that limit upload sizes.
| Aspect | Uncompressed | Compressed WebP |
|---|---|---|
| Quality Setting | 90-100% | 70-85% |
| File Size (typical) | 200 KB - 1 MB | 50-300 KB |
| Visual Difference | Baseline | Minimal to none |
| Web Performance | Good | Excellent, fully optimized |
| Transparency | Preserved | Preserved |
| Best For | Source files, archival | Production web assets |
WebP supports both lossy and lossless compression. Lossy WebP uses predictive coding based on VP8 video compression, which analyzes neighboring pixels to predict values and encodes only the differences. Lossless WebP uses advanced techniques including spatial prediction, color space transforms, and entropy coding. Both modes produce smaller files than their PNG and JPG equivalents.
WebP quality ranges from 1 to 100. At 100%, lossless mode is used, preserving every pixel. At 80-90%, lossy compression is applied with minimal visual impact. At 60-75%, files are very small but some artifacts may appear in gradients and fine details. For web publishing, 75-85% typically gives the best balance between file size and visual quality.
Your WebP files are processed on our secure server and temporarily stored for you to download. All uploaded files are automatically deleted within 1 hour. We do not access, analyze, or share your files with any third party.
At 80% quality, expect 40-60% reduction from a 100% quality source. The exact savings depend on image content. Photos with large uniform areas compress more efficiently.
Yes, but many tools save WebP at very high quality (95-100%). Re-encoding at 75-85% quality can dramatically reduce file size with no visible quality loss.
No. WebP alpha channel transparency is fully preserved during compression, regardless of the quality setting.
For web images: 75-85%. For thumbnails: 60-75%. For high-quality displays: 85-90%. Test with your specific images to find the optimal setting.
Yes. Upload multiple files and they will all be compressed with the same quality setting. Download them individually or as a batch.
Files are temporarily stored for download and automatically deleted within 1 hour. We do not keep copies beyond this period.
No. Lossy WebP compression discards data that cannot be recovered. Always keep your original files if you might need the full quality later.
Sometimes you receive WebP images from other sources at higher quality than you need. This tool lets you re-optimize those images without going back to the source application.