Upgrade your old JPEGs to the lightning-fast WebP format. Set an exact target KB size to perfectly compress and convert in one click.
Leave empty for high quality, or enter a number (e.g., 50) to compress it.
Welcome to the internet's most advanced, free online JPG to WebP converter. As the internet evolves, the traditional JPEG format is quickly becoming obsolete due to its heavy file sizes. Google introduced WebP as a next-generation image format that provides vastly superior compression. In this comprehensive guide, learn how changing your old JPEGs to WebP can drastically supercharge your website's speed, save storage space, and boost your overall SEO rankings.
The JPEG (or JPG) format has been the standard for digital photography for decades. However, its compression algorithm is outdated. When you try to compress a JPG aggressively, it often results in ugly, blocky artifacts known as "pixelation". On the other hand, WebP uses a highly advanced predictive encoding technique that smooths out these blocks, keeping images crisp even at very low file sizes.
Data shows that a standard WebP image is roughly 25% to 35% smaller than an identical quality JPG image. By using our tool to convert your JPG to WebP online, you significantly reduce the amount of data your server has to process. If your website has hundreds of product images or blog photos, converting them all to WebP can literally shave multiple seconds off your page load time. This directly improves your Google Core Web Vitals score.
We noticed a massive gap in online tools: most converters just change the format, leaving you with whatever file size it generates. We fixed that.
Click on the upload zone above and select any standard .jpg or .jpeg file from your computer or smartphone. The image will load securely in your browser's local memory.
If you just want a format conversion, leave the box empty. If you specifically need the new WebP file to be under 100KB or 50KB, type that exact number into the input field.
Click the 'Convert to WebP' button. Our powerful HTML5 Canvas engine will process the conversion and compression in milliseconds. Download the final .webp file instantly.
Your JPG images never leave your computer. Our converter is built on Client-Side JavaScript, ensuring absolute privacy for your personal documents and photographs.
Avoid the frustrating wait times of cloud-based converters. Because no uploading is required, you can convert a heavy 10MB JPG into a WebP file in less than a second.
The only converter on the market that lets you choose your output size. Need a WebP under 50KB for an application form? Just type 50, and we handle the mathematics.
Today, WebP is fully supported by Chrome, Firefox, Safari, Edge, and Android. Your converted images will render perfectly across 97% of all modern web browsers.
No software installation required. Our tool has a fully responsive design, allowing you to seamlessly convert photos from JPG to WebP straight from your mobile phone.
This JPG to WebP converter tool is 100% free forever. We impose no daily limits, require no sign-ups, and guarantee that we will never overlay watermarks on your photos.
Discover more about the Next-Generation WebP format and how converting your legacy JPG files can benefit your online presence.
WebP is an image format introduced by Google that provides superior lossless and lossy compression for images on the web. It is vastly superior to JPG because it can achieve much smaller file sizes (up to 34% smaller) while retaining the exact same visual quality. This means your website loads much faster without looking unprofessional.
Yes! While WebP was initially created by Google, Apple officially added full support for the WebP format in Safari 14 (released with iOS 14 and macOS Big Sur). Today, WebP is universally accepted as the modern standard across all major ecosystems.
If you enter a custom KB target (like 50KB), our tool runs a smart algorithm. It first converts the JPG into WebP format. Then, it incrementally lowers the image's compression quality. If the file is still too large to hit your 50KB target, the tool will automatically scale down the physical dimensions (width/height) by a few percent until it fits perfectly.
Because the core compression logic is written in client-side HTML5 and Javascript, once this webpage has loaded on your browser, you could technically disconnect your internet and the converter would still function perfectly! Your images are processed using your own device's CPU and RAM.