How to compress images to WebP for faster websites
Page speed directly affects your Google ranking and conversions. Converting images to the modern WebP format can bring them under 100 KB while keeping them sharp.
1. Why WebP?
- Smaller files: WebP is typically 25–34% smaller than JPG and about 26% smaller than PNG at the same visual quality.
- Transparency: like PNG, WebP supports transparent backgrounds, at a fraction of the size.
- Better PageSpeed scores: Google Lighthouse recommends next-gen formats such as WebP.
2. Choosing a quality
Start at 80%. Go down to 70% for large background photos, or up to 90% for product photos where detail matters.
Frequently asked questions
Are my images uploaded to a server?
No. Compression runs with JavaScript directly in your browser. Your images never leave your device.
What quality setting should I use?
For websites, 75% to 85% is the sweet spot. File size usually drops by 70% to 90% while the difference is hard to see.
Which formats are supported?
You can upload JPG, JPEG, PNG, GIF and WebP. The output is always WebP, which is supported by all modern browsers.