Image to WebP Converter
Convert your images to WebP format for smaller file sizes.
Drop your JPEG/PNG image here
or click to browse · max 50 MB
Settings
wasm-vips (~5MB) will be downloaded on first use and cached by your browser.
Image to WebP Converter
Converts JPEG and PNG images to WebP format. WebP provides superior compression, producing files 25-35% smaller than JPEG at equivalent quality. Developed by Google, WebP is supported by all modern browsers.
What is it used for?
- Optimizing website images for faster page loading
- Reducing image CDN bandwidth costs
- Creating web-optimized versions of photos
- Progressive web app image assets
Step-by-Step Guide
- Upload a JPEG or PNG image
- Adjust quality (1-100, default 80)
- Click 'Convert to .WEBP'
- Compare file sizes
- Download the WebP image
How it works
Upload a JPEG or PNG image, adjust the quality slider, and click Convert. wasm-vips encodes the image as WebP with your chosen quality level. All processing happens in your browser.
Tips & Best Practices
- Quality 80 is a good default for photos
- WebP supports both lossy and lossless compression
- Use WebP for all web images to improve page speed scores
- For photos, quality 75-85 gives the best size-to-quality ratio
- WebP supports both lossy and lossless compression - lossy is default and recommended for photos
Frequently Asked Questions
How much smaller are WebP files?
WebP typically produces files 25-35% smaller than JPEG at equivalent quality. For PNG images with transparency, WebP can be 26% smaller.
Do all browsers support WebP?
Yes, all modern browsers (Chrome, Firefox, Safari 14+, Edge) support WebP. Only very old browsers lack support.
How much smaller are WebP files compared to JPEG?
WebP files are typically 25-35% smaller than JPEG at equivalent visual quality. For example, a 500KB JPEG photo might be only 325-375KB as WebP. At quality 80 (default), you get an excellent balance of file size and visual quality.
Do all browsers support WebP?
Yes, all modern browsers support WebP: Chrome, Firefox, Safari (14.1+), Edge, and Opera. For legacy browser support, you can provide JPEG fallbacks using the HTML <picture> element.
Privacy & Security
This tool uses wasm-vips (libvips compiled to WebAssembly). The WASM binary (~5MB) is downloaded on first use and cached by your browser. All image processing happens locally on your device - your images are never uploaded to any server. This makes it safe for sensitive, private, or confidential images.