Convert Image to WebP Free Online
Convert JPG, PNG, and other images to WebP format — free, instant, runs in your browser. WebP files are 25–35% smaller than JPEG at the same quality. No upload, no account.
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Why convert images to WebP?
WebP is Google's modern image format designed for the web. WebP images are typically 25–35% smaller than equivalent JPEG files and 26% smaller than PNG files at the same visual quality. Using WebP on your website directly improves page load speed, Google PageSpeed scores, and Core Web Vitals — all of which affect SEO rankings.
Frequently asked questions
What is WebP format?
WebP is an image format developed by Google that uses advanced compression to produce smaller files than JPEG or PNG with the same visual quality. It supports both lossy and lossless compression, and also supports transparency (like PNG). It's supported by all modern browsers: Chrome, Firefox, Safari, Edge.
How much smaller is WebP compared to JPG?
On average, WebP is 25–35% smaller than JPEG at the same visual quality. A 1MB JPG often becomes 650–750KB as WebP. For PNG files with transparency, WebP lossless is about 26% smaller.
Should I use WebP for my website?
Yes — WebP is the recommended format for web images. Google PageSpeed Insights specifically flags non-WebP images as an optimization opportunity. All major browsers have supported WebP since 2020, so there's no compatibility risk for modern websites.
Does converting to WebP lose quality?
At 80%+ quality setting, the difference between JPEG and WebP is invisible to the human eye. WebP is actually more efficient — it achieves the same visual quality at a smaller file size. You can use the quality slider to control the trade-off.
How do I convert PNG to WebP?
Upload your PNG to the tool above — it converts any browser-supported format to WebP. The mode toggle defaults to JPG→WebP but PNG files work equally well in that mode.
Can I convert WebP back to JPG?
Yes — use the WebP to JPG converter. Switch the mode toggle to WebP→JPG and upload your WebP files.
How do I use WebP images in WordPress?
WordPress 5.8+ accepts WebP image uploads natively. Upload your converted WebP files through the Media Library as you would any other image. For older WordPress versions, use a plugin like Imagify or ShortPixel to auto-convert on upload.
Why convert images to WebP?
WebP is typically 25–34% smaller than JPEG and 26% smaller than PNG at the same perceptual quality. Smaller images mean faster page loads, lower bandwidth costs, and better Google PageSpeed and Core Web Vitals scores — all of which directly affect SEO. Converting your site's images to WebP is one of the highest-impact optimizations you can make for page speed.
Which browsers support WebP?
All modern browsers support WebP natively: Chrome (since 2014), Firefox (since 2019), Edge (since 2018), Opera (since 2013), and Safari (since macOS Big Sur / iOS 14 in 2020). Global WebP browser support is above 97% as of 2024. The only significant holdout was Internet Explorer, which is no longer supported by Microsoft.
How do I serve WebP on my website?
The simplest approach: use <img src="image.webp"> for modern sites targeting Chrome/Firefox/Safari. For maximum backward compatibility, use the <picture> element: put a <source type="image/webp" srcset="image.webp"> first, then an <img src="image.jpg"> fallback — browsers that don't support WebP automatically fall back to the JPG. This approach supports IE11 and pre-2020 Safari without serving suboptimal images to modern browsers.
Is WebP good for transparent images?
Yes — WebP supports full alpha transparency just like PNG. Lossless WebP with transparency is typically 26% smaller than the equivalent PNG. This makes WebP an excellent choice for logos, icons, and UI elements that need transparent backgrounds on websites. The browser support for WebP transparency is the same as for WebP in general — all modern browsers handle it correctly.
How do I add WebP to WordPress?
Install the Imagify or ShortPixel plugin — both automatically convert uploaded images to WebP and serve them to supported browsers while falling back to JPEG/PNG for older browsers. Imagify offers 20 MB of free conversions per month; ShortPixel offers 100 free credits. For manual control, convert images here and upload them directly to the WordPress Media Library (supported natively in WordPress 5.8+).