Compress WebP Images Online — Free Browser Tool
Convert and compress to WebP for superior compression and quality
WebP is the best all-round web format: lossy and lossless modes, alpha support, and smaller files than JPEG at equal quality. If you need the absolute smallest file and browser support allows it, AVIF goes further; if compatibility matters more, JPEG remains the safe baseline.
Drag and drop your images here
or click to browse files
Compression Settings
or click to browse files
How to Compress WebP Images
Upload Images
Drag and drop your images or click to browse. Supports all common image formats.
Adjust Settings
Choose your desired quality level and output format. Preview changes in real-time.
Download Results
Download compressed images individually or as a batch. Your images are processed locally for privacy.
WebP Compression Best Practices
Choose the right quality level
For WEBP images, quality level 80-85 often provides a good balance between file size and visual quality.
Use batch processing for multiple files
Save time by compressing multiple WEBP images at once with identical settings.
Preview before downloading
Always preview compressed images to ensure they meet your quality requirements before downloading.
Consider modern formats
For better compression, consider converting to WebP or AVIF formats which offer superior compression ratios.
WEBP format capabilities
Best for
- • web images
- • photos with transparency
- • logos and screenshots at smaller sizes
Watch out for
- • older browsers (pre-2020 Safari/iOS) need fallbacks
- • lossy artifacts on sharp edges at very low quality
Alternatives
- • AVIF: even better compression when browser support allows
- • PNG: universal lossless fallback
WEBP compression test results
Encoded with the WebP codec used by this tool. The lossless PNG baseline (input column) is the real source file; every output row is an actual encode.
| Source | Dimensions | Input | Output | Size | Saved | Observed tradeoff |
|---|---|---|---|---|---|---|
| Photo | 1280×960 | 3.7 MB | WEBP q70 | 188 KB | 95% | slight blur in gradients; edges hold up better than JPEG; alpha preserved |
| Photo | 1280×960 | 3.7 MB | WEBP q85 | 373 KB | 90% | near-original quality; alpha preserved |
| UI screenshot | 1280×800 | 142 KB | WEBP q70 | 5 KB | 96.8% | slight blur in gradients; edges hold up better than JPEG; alpha preserved |
| UI screenshot | 1280×800 | 142 KB | WEBP q85 | 5 KB | 96.2% | near-original quality; alpha preserved |
| Logo | 512×512 | 216 KB | WEBP q70 | 86 KB | 60% | slight blur in gradients; edges hold up better than JPEG; alpha preserved |
| Logo | 512×512 | 216 KB | WEBP q85 | 87 KB | 59.5% | near-original quality; alpha preserved |
WebP Compression FAQ
What is WEBP compression?
WEBP compression reduces file size while maintaining image quality. Our tool uses advanced algorithms to optimize WEBP images for web use.
Is WEBP compression lossy or lossless?
WEBP supports both lossy and lossless compression. You can choose the compression mode that best fits your needs.
Does WEBP compression keep transparency?
Yes — WEBP preserves the alpha channel, so transparent regions stay transparent in the output.
How much can I compress WEBP files?
Typically, you can achieve 50-90% file size reduction depending on the original image and your quality settings.
Is my data secure?
Yes, all processing happens in your browser. Your images are never uploaded to our servers.