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ImageCocoon

JPG to WEBP Converter

Drop your JPG files and get WEBP images back in seconds. Everything happens on your device.

100% Private · No uploads

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    How to convert JPG to WebP

    Switching your photos from JPG to WebP is one of the easiest ways to speed up a website or online store: the pictures look the same, but the files are typically a quarter to a third smaller. Convert a whole batch here, with the quality you choose, privately in your browser.

    1. Step 1

      Add your JPG photos

      Drop in product shots, blog images or a whole folder of photos.

    2. Step 2

      Pick a quality

      WebP is already chosen. 80% is a good starting point for the web; go higher for hero images and portfolios.

    3. Step 3

      Convert

      Press Convert and compare the JPG and WebP sizes on each card.

    4. Step 4

      Download for your site

      Save the WebP files one by one or in a ZIP, then upload them to your website or store.

    Why WebP makes websites faster

    Images are usually the heaviest part of a web page. WebP compresses photos more efficiently than JPG, so at the same visible quality the file is typically 25–35% smaller, and sometimes more. Lighter images load sooner on phones and slow connections, use less data, and improve the loading-speed measurements that search engines take into account.

    For an online store with dozens of product photos per page, or a blog full of large images, those savings add up to a noticeably snappier site.

    Getting the best results

    • Resize first. If your JPGs are 4000 pixels wide but your site shows them at 1200, resizing saves far more than any format change. Do it before converting.
    • Start at 80% quality. Compare the result with the original at full size; most people can’t tell them apart. Product zoom images and photography portfolios may deserve 85–90%.
    • Convert from the best original you have. Every lossy save adds a little loss. Converting a high-quality JPG once gives a better WebP than converting a JPG that has already been compressed several times.

    Compatibility and platforms

    Every current major browser displays WebP, and platforms such as WordPress, Shopify, WooCommerce, Squarespace and Wix accept WebP uploads. Some site builders and content delivery services already convert images to WebP behind the scenes; if yours does, uploading high-quality JPGs and letting it handle the conversion is fine too.

    WebP is less suited to files you’ll email to people, print, or open in older desktop software, where JPG is still the safe choice. If someone sends a WebP back to you, WebP to JPG converts it in a click. Curious how WebP compares with AVIF? See our format comparison.

    Your photos stay with you

    This converter works entirely in your browser: JPGs are decoded and re-encoded as WebP on your own device, so unreleased product photos and personal pictures are never uploaded. As a bonus, the WebP files don’t carry over the camera and GPS metadata from your JPGs, which you rarely want published on a website anyway.

    Keep your JPG originals

    WebP is the version for publishing, not for archiving. Keep the original JPGs (or, better still, the camera originals) in your photo library, because they’re what you’ll want for printing, re-editing or creating a different size later. Converting from the original each time avoids stacking one round of compression on top of another, and this tool never modifies the files you add.

    Frequently asked questions

    How much smaller is WebP than JPG?

    Typically 25 to 35 percent smaller at the same visible quality, and sometimes more, depending on the photo and the quality you choose.

    Will my photos look worse as WebP?

    At 80 percent quality or above, most people cannot see a difference. You can raise the quality for important images and compare the sizes before downloading.

    What quality setting should I use for a website?

    Start at 80 percent. Use 85 to 90 percent for hero images, portfolios and product zoom photos, and 70 to 75 percent for small thumbnails.

    Does Shopify or WordPress accept WebP?

    Yes. Both accept WebP uploads, as do most modern website builders and e-commerce platforms.

    Should I convert all my photos to WebP?

    For images on a website, yes. For files you email, print or open in older software, keep JPG, which works everywhere.

    Can I convert JPG to WebP in bulk?

    Yes. Add all your JPGs at once, convert them together and download them as a single ZIP.

    Are my JPGs uploaded during conversion?

    No. Everything happens inside your browser, so your photos never leave your device.