JPG to WebP converter
Convert JPG to WebP for smaller files on the modern web — locally, no upload.
Convert JPG to WebP in your browser
WebP is a modern image format that delivers the same visual quality as JPG at a noticeably smaller file size, which means faster-loading pages and lighter uploads. Converting your JPGs to WebP is one of the simplest ways to speed up a website or shrink a media library without a visible drop in quality.
This converter does the work locally in your browser using the WebP encoder your browser already ships with, so nothing is uploaded and the result is ready instantly. You choose the quality, and you can see the estimated output size before you download — handy when you are aiming for a specific page-weight budget.
WebP is supported by every current browser, so it is safe to use on the web today. Keep the original JPGs only if you must deliver to very old software that predates WebP; for everything modern — websites, apps and messaging — WebP is the smaller, sharper choice.
Privacy by design
All processing happens inside your browser. Your files never reach a server — there is nothing to store, transmit or share.
Learn more in our privacy policyBatch & bulk: process multiple images at once
Load not just one image but as many as you like — by drag & drop or multiple-select. imagenimble processes them one after another, locally in your browser, and packages the results as a single ZIP download. No upload, no account and no fixed limit — only your device’s memory caps very large batches. It is the quick way to convert or edit a whole folder in one go.
Frequently asked questions
For the web, usually yes: at the same quality WebP files are typically 25–35% smaller. JPG stays useful only where very old software cannot read WebP.
Yes — Chrome, Firefox, Safari and Edge have supported WebP for years, so it is safe for websites and apps.
WebP uses lossy compression like JPG, but at the same quality setting it preserves detail better. Use the slider to balance file size against sharpness.
No — encoding happens entirely in your browser. You can disconnect from the internet after the page loads and still convert.