JPG to WebP Converter: Convert JPG to WebP Online Free
Convert JPG to WebP in seconds and make your photos about 25 to 34% smaller at similar visual quality. Ideal for faster websites, lighter apps and slow mobile connections. Batch convert up to 20 JPG or JPEG files at once. Everything runs in your browser, so nothing is uploaded.
- About 25 to 34% smaller files
- 95 to 97% browser support
- 20 files at once
- No upload, no account
- 1Add up to 20 images
- 2Pick from 18 formats
- 3Download or copy the code
Processed on your device. Your images are never uploaded, and metadata is stripped. How we keep it private
Why convert JPG to WebP?
JPG has been the default photo format since 1992. It works almost everywhere, but it is not efficient by modern standards. WebP, introduced by Google in 2010, was built for the web. In Google tests, lossy WebP images were 25 to 34% smaller than comparable JPEG images at the same measured quality.
For a website, that means faster pages and lower bandwidth use. For an app, it means smaller downloads. For you, it means less storage used by the same photos. Every current major browser can display WebP, covering roughly 95 to 97% of users. If your JPG images are going on the web, converting them to WebP is usually a good move.
Need smaller JPG files without changing the format? Try the Image Compressor.
WebP vs JPG: which should you use?
Use WebP for websites, apps and anything viewed in a modern browser. Keep JPG when you need the widest possible compatibility, such as old software, some print shops or email to people with older devices.
| Feature | JPG | WebP |
|---|---|---|
| File size | Larger | 25 to 34% smaller on average |
| Visible quality | Good | Similar at equal settings |
| Transparency | No | Yes |
| Animation | No | Yes |
| Browser support | 100% | About 95 to 97% |
| Old software and print shops | Universal | Sometimes limited |
| Best for websites | Acceptable | Recommended |
Green marks the stronger format for that row. The table compares the formats themselves.
What about AVIF? In several comparisons AVIF files are about 50% smaller than JPEG and roughly 20 to 30% smaller than WebP, but browser support is a little lower and encoding is slower. WebP remains the safer choice today. AVIF works well when you can offer a WebP or JPG fallback.
How to convert JPG to WebP
- 1
Drop your JPG files
Drag up to 20 JPG or JPEG files onto the page, or click to choose them from your device.
- 2
Keep WebP selected
The output format is already set to WebP. Pick a quality level (80 to 90 works well for photos) and resize if you want.
- 3
Download your WebP files
Save each WebP image, or download all of them together as a ZIP.
Tip: always convert from your original JPG files and keep the originals. JPG is already compressed, so each extra conversion adds a little loss. A quality setting around 80 to 90 is a good balance for photos, and higher is better for images you plan to edit or print.
Convert JPG to WebP on Windows, Mac, iPhone and Android
No app and no software. Open this page in your browser and use the same three steps on any device.
Windows
Open this page in Chrome, Edge or Firefox, drag your JPG files in and download the WebP files. No software to install.
Mac
Works in Safari, Chrome and Firefox. Drag photos from Finder into the converter and save the WebP results.
iPhone & iPad
Open the page in Safari and choose photos from your library. If your camera saves HEIC, switch Settings > Camera > Formats to Most Compatible to get JPG.
Android
Open the page in Chrome, tap the drop zone and pick photos from your gallery or file manager.
How to use WebP images on your website
Once you have your WebP files, upload them like any other image. Recent versions of WordPress accept WebP uploads directly. On a custom site, the HTML picture element lets you serve WebP and fall back to JPG for the rare browser that cannot display it.
<picture>
<source srcset="photo.webp" type="image/webp">
<img src="photo.jpg" alt="Describe the photo" width="1200" height="800" loading="lazy">
</picture>Set the width and height so the page does not jump while images load, and resize large photos before converting. Resizing is often the biggest saving of all.
When you need JPG to WebP
Speed up your website
Smaller images mean faster pages. Google PageSpeed Insights and Lighthouse flag heavy images and suggest next-gen formats like WebP.
Cut bandwidth costs
About a quarter to a third less image data at similar quality. That can lower your CDN and hosting bill.
Improve the mobile experience
Visitors on slow 3G or 4G connections benefit most, because there are fewer bytes to download before the page appears.
Help your Core Web Vitals
Lighter hero and product images can improve Largest Contentful Paint, one of Google page experience signals.
Reduce storage costs
Store photo libraries and product catalogs as WebP and use roughly a quarter to a third less space. Keep originals if you may edit them later.
Lighter app and email assets
Smaller images shrink app bundles and speed up downloads. For email, check that your recipients can open WebP first.
JPG to WebP questions
What is WebP?
WebP is a modern image format developed by Google. For photos, lossy WebP files are about 25 to 34% smaller than comparable JPEG files at the same measured quality, and WebP also supports transparency and animation.
Why convert JPG to WebP?
A smaller file with similar visible quality. WebP images load faster, use less bandwidth and take less storage, which helps websites, apps and users on slow mobile connections.
Is WebP better than JPG?
For the web, usually yes. WebP gives smaller files at similar quality and adds transparency. JPG is still the safer choice when you need to open or print the file in very old software, since JPG works almost everywhere.
How do I convert JPG to WebP?
Drop your JPG or JPEG files into the converter above, keep the output set to WebP, choose a quality level and download the result. It takes a few seconds and needs no account.
Will converting JPG to WebP lose quality?
JPG is already a lossy format, so converting re-encodes the image and adds a small extra loss. At a high quality setting (around 80 to 90) the difference is usually hard to see. For the best result, convert from your original JPG and keep the original file.
Does WebP work in every browser?
WebP is supported by all current major browsers, including Chrome, Firefox, Edge, Opera and Safari 14 and newer. That covers roughly 95 to 97% of users worldwide. Only very old browsers cannot display it.
Can I open WebP files on my computer or phone?
Yes. Any modern browser opens WebP, and most current photo viewers and editors support it. If a very old program cannot open a WebP file, convert it back with the WebP to JPG tool.
Does WebP support transparency?
Yes. WebP has a full alpha channel like PNG. A JPG has no transparency, so converting JPG to WebP will not add any, but WebP keeps transparency when you convert PNG files later.
Can I convert many JPG files at once?
Yes, up to 20 files at once, up to 25 MB each. Download them one by one or all together as a ZIP.
Does the converter strip metadata?
Yes. Browsers do not pass EXIF data through a canvas, so GPS location, camera model and creation date are removed on every conversion. That is a privacy win for images you share online.
Are my files uploaded to a server?
No. Everything runs in your browser on your own device. Your JPG files never leave your phone or computer.
Should I use WebP or AVIF?
AVIF often gives files about 20 to 30% smaller than WebP, and about half the size of JPEG, but support is slightly lower (around 94%) and it encodes more slowly. WebP is the safer, more widely supported choice today. AVIF is a good second option when you can offer a fallback.
Can I resize while converting?
Yes. Use the Resize option to set a maximum width or exact dimensions before converting. Resizing large photos is often the biggest single saving for a website.
Does WebP help SEO?
Google does not require WebP, but page speed and Core Web Vitals are part of its page experience signals, and Lighthouse flags large images. Lighter images can help your pages load faster, though they are only one of many ranking factors.
How do I use WebP in WordPress or on my website?
Recent WordPress versions accept WebP uploads directly. On any site, you can use the HTML picture element to serve WebP with a JPG fallback, as shown in the example on this page.
Can I convert WebP back to JPG?
Yes. Use the WebP to JPG converter on ToolDeck to turn WebP images back into JPG files for software that does not support WebP.
Other conversions and tools
Your photos stay on your device
No upload, no account, no tracking. Your JPG files are converted to WebP by your browser on your own device. As a bonus, EXIF metadata including GPS location is stripped on every conversion. Read more on our privacy section.