Quick answer: To convert JPG to WebP, add your photos, set the quality (85 is a good balance) and click Convert. WebP files are usually smaller than JPG at similar visual quality. The conversion runs in your browser, so your photos are never uploaded.
How to use the JPG to WebP Converter
- Add your JPG files
- Keep WEBP selected and set the quality
- Click Convert and download your WebP files
About this tool
WebP is a modern image format that usually gives smaller files than JPG at similar visual quality. Converting JPG photos to WebP is a simple way to make a website lighter, free up storage or fit an upload limit. Your photos are processed on your device and never uploaded.
Why convert JPG to WebP?
Google, which developed WebP, says it is designed to produce smaller files than JPEG at similar visual quality; your own results depend on the photo and the quality setting. Lighter images load faster, which matters most for visitors on mobile data. WebP also supports transparency and animation, which JPG does not, although a converted JPG has no transparency to keep.
What to expect
- A JPG is already compressed. Converting it saves it with compression a second time, so keep the original JPG if the photo is important.
- Quality setting. Use 85 for a good balance. Going below 60 can make skin tones and gradients look blocky.
- Metadata. Camera details such as location are not copied to the WebP, which can also be good for privacy.
- Your original is safe. You download a new WebP file; the JPG is not changed.
Where WebP works
WebP displays in current versions of Chrome, Edge, Firefox and Safari. Some older programs, printers and social media upload forms may still require JPG, so check before you replace your originals. To go the other way, use the WebP to JPG Converter.
Privacy and limits
Files are processed inside your browser and are not uploaded to FormatVolt. Each file can be up to 50 MB. If a very large photo fails, try a smaller file or a desktop browser. If you also need a smaller size in pixels, use the Image Resizer.
Frequently asked questions
Is it really free?
Yes. There are no limits, watermarks or sign-ups.
Will the WebP look as good as my JPG?
At a quality setting around 85 the difference is usually hard to see, but a JPG is compressed twice, so keep the original for important photos.
How much smaller will the file be?
Often noticeably smaller, but it depends on the photo and the quality value you choose.
Why do I get an error saying my browser cannot create WebP?
Some browsers cannot encode WebP files. Use a current version of Chrome, Edge or Firefox.
Are my photos uploaded?
No. The conversion happens in your browser and your files never leave your device.
Sources and references
More free tools
Last updated: November 10, 2026