JPG to WebP Converter

To convert JPG to WebP, add your pictures to the box above and press Convert to WebP. Each picture becomes a WebP file that is usually a quarter to a third smaller and looks the same, ready to download one by one or together as a ZIP.

Set the quality, keep each file under a size in KB, or resize for your website in the same step. Everything happens in your browser, so your pictures are not uploaded.

This converter is built for people who publish pictures: bloggers, shop owners, developers and designers. A JPG to WebP conversion here keeps the look of each photo while cutting its size, so pages load faster and use less data.

You control the quality, can set a maximum file size and let the converter find the best quality that fits, and can resize to the width your website really shows. Hundreds of pictures convert at once with the same settings.

WebP was created by Google to make the web faster. For the same visual quality it is typically 25 to 35% smaller than JPG, and it supports transparency like PNG. Every current browser shows WebP: Chrome, Edge, Firefox, Safari, Opera and their mobile versions.

Use WebP for pictures on websites, online shops, blogs and web apps. Keep JPG for printing, email attachments and anything you send to people who will open the file in older programs.

WebP for websites is now the normal choice: content systems such as WordPress, Shopify, Wix and Squarespace accept WebP uploads, and modern themes serve them to every visitor. Smaller pictures mean faster pages, lower hosting bandwidth and a better experience on mobile connections.

Converting before you upload gives you full control over quality and size, instead of relying on a plugin or a service that compresses after the fact.

In WordPress, open Media, choose Add New and drop the WebP files in; they work in posts, pages, galleries and featured images like any JPG. Shopify, Wix, Squarespace, Webflow and Ghost accept WebP uploads the same way.

Replacing existing pictures is easiest when the names stay the same: holiday.jpg becomes holiday.webp, so you can find and swap each one. Remember to update links that point to the old .jpg addresses.

Pictures are usually the heaviest part of a web page, so converting them is one of the easiest ways to improve page speed. Google's PageSpeed Insights and Lighthouse flag large JPG and PNG pictures with the advice to serve images in modern formats, and switching from JPG to WebP is exactly that fix.

Faster pages help Core Web Vitals, especially Largest Contentful Paint, which measures how quickly the main picture or text appears. That in turn helps search rankings and keeps visitors from leaving before the page loads.

Smaller pictures also save money and data. A site that serves a million picture views a month at 300 KB each moves about 300 GB; at 200 KB per picture it moves about 200 GB. Hosting plans, CDNs and visitors on mobile data all benefit.

Visitors on slow connections feel the difference most: a page that loads in two seconds instead of four keeps far more of them.

To optimize images for web, three things matter: the right size in pixels, the right format and the right quality. Resize to the width the page actually shows, usually 1200 to 2000 pixels for full-width pictures and 600 to 1000 for pictures inside articles. Choose WebP. Then pick a quality around 75 to 85%.

All three happen in one step here: choose Longest side under Size, keep Convert to WebP, and set the quality or a size limit. A typical 4 MB phone photo becomes a sharp 150 to 300 KB WebP.

For hand-written sites, use the picture element to serve WebP with a JPG fallback for very old browsers: a source with type image/webp and srcset pointing to the WebP, followed by an img pointing to the JPG. Every current browser picks the WebP.

Add width and height attributes so the page does not jump while pictures load, and loading=lazy for pictures further down the page. Converting in a batch with Longest side lets you make 1x and 2x versions for srcset in two quick passes.

Search engines index WebP pictures like any other, and Google Images shows them. Good image SEO still depends on the basics: a descriptive file name, alt text that says what the picture shows, and a page that loads quickly.

Because the file names are kept, a well-named photo such as red-running-shoes.jpg becomes red-running-shoes.webp, keeping its meaning for search.

WebP compression works like JPG but is smarter: it predicts each block of the picture from its neighbours and stores only the difference, which needs fewer bytes for the same detail. The quality setting decides how much fine detail is kept.

At 90% and above the result is visually identical to the original; 75 to 85% is the sweet spot for websites, where the difference is very hard to see; below about 60% soft blocks and colour smudges start to appear. The before and after slider shows exactly how each picture looks.

JPG and JPEG are the same format with two spellings, so a JPEG to WebP conversion is exactly the same thing. Files ending in .jpg, .jpeg, .jfif and .jpe all work.

Phone photos are turned upright automatically, so a picture that showed sideways in some programs comes out the right way round.

Any picture can be converted, not only JPG. Image to WebP conversion works for PNG graphics and screenshots, iPhone HEIC photos, AVIF, GIF, BMP and SVG drawings, and TIFF files, which are opened on our server and labelled when that happens.

Transparent PNGs stay transparent in WebP, so logos and product cut-outs keep their see-through background while becoming much smaller.

Photos from phones and cameras are the biggest win. A photo to WebP conversion combined with a sensible size, such as 1920 pixels on the longest side, often turns a 3 to 6 MB photo into 200 to 400 KB without visible change.

On a phone, open this page in Chrome or Firefox, tap Select images and convert; the files appear in your downloads ready to upload to your site.

WebP supports transparency, so pictures with see-through backgrounds stay that way. You can also make a plain white or coloured background transparent while converting: choose Remove background under Transparent background.

That is handy for logos and product shots on white that should sit on a coloured page, at a fraction of the size of a PNG.

To batch convert to WebP, add up to 500 pictures at once or a whole folder with Add a whole folder. They are converted several at a time using the spare cores of your processor, so a hundred pictures usually take well under a minute.

Download all puts every WebP into one ZIP, keeping the folder structure when you added a folder. File names stay the same with the .webp extension, which makes replacing the pictures on your site simple.

Some sites and themes set a budget for each picture. Choose Keep under a size and type the number of KB, or pick 100 KB, 200 KB, 500 KB or 1 MB, and each picture gets the highest quality that still fits.

When the budget is very small, choose a smaller size under Size as well, because fewer pixels shrink a file much more than lower quality. For JPGs you want to keep as JPG, Compress Image makes them lighter instead.

Resize while converting: Longest side scales large pictures down without enlarging small ones, Percentage scales every picture by the same amount, and Exact size makes every picture the same width and height, for example square product photos.

For social media presets, sizes in centimetres and crop positions, use Resize Image and choose WebP as the format.

Creating WebP files needs a browser that can write them: Chrome, Edge, Firefox, Opera, Brave and Samsung Internet all can. Some versions of Safari can show WebP but not create it; if that happens the page tells you, and you can switch to another browser or choose JPG instead.

Viewing WebP is no longer a problem anywhere: every current browser, Windows 10 and 11, macOS, iOS and Android display it.

Your pictures are not uploaded. Opening, converting, resizing and zipping all happen in your browser, on your own device. Only TIFF and ICO files, which browsers cannot open, are read by our image server and deleted straight away.

Converting also removes hidden details such as camera data and location from photos, which is good practice for anything you publish on the web.

Each picture is opened by your browser, turned upright and drawn onto an invisible canvas, scaled in smooth steps if you chose a new size. Transparent areas stay transparent, or a plain background is made transparent if you asked.

The canvas is then encoded as WebP by your browser's own encoder at the quality you chose, or the highest quality that fits your size limit, found in about six tries. The result is checked to make sure it really is WebP before you download it.

Resize to the width your page shows before worrying about quality.

Use 75 to 85% quality for web pictures and 90% for hero images.

Keep the original JPGs as masters; convert again whenever you need.

Use descriptive file names; they stay the same with .webp at the end.

Check the result with the before and after slider before uploading.