25 to 34% smaller files, free, no upload required
WebP images are 25 to 34% smaller than JPEG at the same visual quality. Converting JPG to WebP reduces page weight, improves load times and boosts Core Web Vitals scores. Runs entirely in your browser.
25-34% smaller
vs equivalent JPEG
No uploads
Files stay on your device
Batch convert
Multiple files at once
Drop JPG files here or click to browse
Supports .jpg and .jpeg — all processing stays in your browser
JPEG was designed in 1992. It has been the default photo format for three decades because nothing better was widely supported. WebP was developed by Google and achieves 25 to 34% smaller file sizes than JPEG at the same visual quality using a more modern compression algorithm.
For a website with 20 images averaging 400KB each, switching from JPG to WebP saves roughly 2.5MB of data per page load. That translates directly into faster load times, lower bandwidth costs and better scores in Google Lighthouse, which affects search rankings.
Website images
Replace JPG images on product pages, blog posts and landing pages with smaller WebP equivalents.
Core Web Vitals
Google Lighthouse flags JPEGs as a performance opportunity. WebP is the recommended replacement.
E-commerce product photos
Faster product image loading reduces bounce rate and improves conversion on mobile devices.
Blog content images
Inline images load faster on slow connections, improving reader experience and time on page.
WebP is supported by Chrome, Firefox, Safari, Edge and Opera, covering over 97% of global browser usage. Safari added support in version 14 (2020). Internet Explorer never supported WebP but has had essentially zero usage since Microsoft ended support in 2022.
For most websites today, serving WebP images without a fallback is safe. If you need to support very old Safari versions, you can serve WebP to modern browsers and JPG as a fallback using the HTML picture element. The Core Web Vitals guide covers implementation in detail.
Further compress your WebP
The main compressor supports WebP output with full quality control and before/after comparison.
Also converting PNG images?
Use the PNG to WebP tool. Transparency is preserved in the output.
WebP and Core Web Vitals
How image format choices affect Lighthouse scores and what Google recommends.
Social media image sizes
Exact dimensions and format recommendations for each platform.
WebP produces files that are typically 25 to 34% smaller than JPEG at the same visual quality, based on Google's benchmarks. For a 500KB JPG, the equivalent WebP is usually around 330 to 375KB. The savings vary by image content , photographs with complex detail compress more than flat or simple images.
Yes. Smaller image files reduce page weight, which directly improves load time and Core Web Vitals scores. Google Lighthouse flags large JPEGs as an optimisation opportunity and recommends modern formats like WebP. Switching images from JPG to WebP is one of the highest-impact changes you can make to web performance without changing how images look.
Yes. WebP has been supported by Chrome, Firefox, Safari, Edge and Opera since 2020, covering over 97% of global browser usage. It is safe to use WebP on websites without a fallback for almost all users.
At the default quality setting of 82%, the output WebP is visually indistinguishable from the original JPG for most images at normal viewing sizes. WebP uses a different compression algorithm that achieves better file size at the same visual quality. Use the slider to raise quality if you need to preserve fine detail.
No. All conversion happens entirely in your browser using WebAssembly. Your images never leave your device. You can verify this by disconnecting from the internet after the page loads, conversion still works.
Yes. Drop multiple JPG files at once or select them from the file picker. Each file converts independently. Download them individually or as a ZIP file.
PNG to WebP
Convert PNG to WebP. Transparency preserved. Up to 26% smaller than PNG.
PNG to JPG
Convert PNG to JPEG for maximum compatibility when transparency is not needed.
HEIC to JPG
Convert iPhone HEIC photos to JPG. No uploads. Metadata removed.
Image Compressor and Editor
Compress, crop, resize and watermark images. WebP, AVIF, JPEG XL and more.