WebP Converter — Convert JPG & PNG to WebP Online Free
NewConvert images to modern WebP format
Convert JPG, PNG images to WebP — the modern format that is 25-35% smaller than JPG with same quality.
About WebP Converter
WebP is the modern standard for web images, combining the best properties of JPEG and PNG into a single format. Google developed WebP specifically for the web, and it is now supported across all major browsers. Switching your site images to WebP is one of the most impactful performance optimisations available — images that are 25–35% smaller load faster, reduce bandwidth costs, and improve Lighthouse performance scores.
WebP supports both lossy and lossless compression as well as full alpha-channel transparency. This means it can replace both JPEG (photographs) and PNG (graphics with transparency) with a single format. Animated WebP also exists as an alternative to GIF with dramatically smaller file sizes.
Typical use cases include converting all images in a web project to WebP before deployment, replacing legacy JPEG product photos with WebP versions on e-commerce platforms, and optimising blog post images for Core Web Vitals. Many content management systems now accept WebP uploads natively.
Browser support: Chrome, Firefox, Safari 14+, Edge, Opera, and Samsung Internet all support WebP, covering over 97% of users globally. All conversion in this tool is performed client-side using the HTML5 Canvas API — your files are never uploaded to any server.
Frequently Asked Questions
What is WebP and why should I use it?
WebP is a modern image format developed by Google. It produces files 25–35% smaller than JPEG and 26% smaller than PNG at equivalent visual quality, making pages load faster with no perceptible difference.
Do all browsers support WebP?
Yes. WebP is supported by all major browsers including Chrome, Firefox, Safari (since version 14), Edge, and Opera, covering over 97% of global web traffic.
Does WebP support transparency?
Yes. WebP supports full alpha-channel transparency like PNG, while still achieving smaller file sizes than PNG.
Can I convert both JPG and PNG files to WebP?
Yes. This tool converts both JPEG and PNG files to WebP. For JPG input the output uses lossy WebP; PNG input with transparency uses lossless WebP encoding.