Convert JPG to WebP
Save photos as WebP. They usually come out a quarter to a third smaller than the JPG, with the same look. Convert hundreds at once, in your browser.
- Free, no sign-up
- Runs in your browser. Your files never leave your device.
- Updated
or paste an image with Ctrl V
How do I convert JPG to WebP?
Drop the photos (or a folder of them) on the box above. The tool decodes each one, turns it upright, removes its location data and saves it as WebP with Google’s libwebp encoder. Download them one at a time or all together as a .zip. File names stay the same, with .webp at the end.
How much smaller is WebP than JPG?
Google reports lossy WebP as 25–34% smaller than JPEG at the same SSIM quality (developers.google.com/speed/webp). Our sample photo, a 4096 × 2048 JPG of 1.39 MB, measured on 4 November 2026:
| Preset | As JPG | As WebP |
|---|---|---|
| Smallest (55) | 393 KB | 365 KB |
| Balanced (75) | 623 KB | 490 KB |
| Best (88) | 1.16 MB | 955 KB |
The gap is widest at the qualities websites use most. It varies by photo, so try your own and read the totals above the list.
Where can I use WebP?
Every current browser shows WebP: Chrome, Edge, Firefox, and Safari (on iPhone since iOS 14, fully on Mac since Safari 16, per caniuse.com, checked 4 November 2026). Most website builders and content systems take WebP uploads too. Email is the exception. Keep JPGs for newsletters and attachments.
Converting for a website
Press the For the web quick setup: WebP, at most 1920 px wide, Balanced quality. That covers a full-width image on a laptop screen. Photos that are already smaller keep their size.
Questions
Is WebP better than JPG?
For websites, usually. At the same visual quality, a WebP photo is smaller, and it can have transparency. JPG still wins on compatibility with older software, email clients and print services, so keep JPG copies for those.
Does converting JPG to WebP lose quality?
The tool decodes the JPG and saves it again, so it is a lossy step, like saving any JPG again. At Balanced the difference is very hard to see. Compare shows the two side by side at up to 1600% zoom, and you can raise the quality for any one photo.
Can I convert JPG to WebP and resize at the same time?
Yes. Set Resize to a max width, say 1920 px for a full-width image on a website. The tool scales every photo down (never up) before it saves it as WebP.
Is AVIF smaller still?
Usually, yes. Our sample photo came out at 335 KB as AVIF against 490 KB as WebP. AVIF takes a few seconds per photo to make, and every current browser shows it. Pick AVIF in Format to try it on your own photos.
Are my photos uploaded?
No. The conversion runs in your browser with Google’s libwebp, so your photos never leave your device.
More free tools
- Image Compressor Shrink JPG, PNG, WebP and AVIF images, one or hundreds at a time.
- Compress JPG Make JPG photos smaller, or get them under a size like 200 KB.
- Compress PNG Shrink screenshots and logos. Uses a 256-color palette and keeps transparency.
- Image Resizer Resize a whole folder to a width, height or percentage.
- PNG to WebP Turn PNGs into much smaller WebP files. Transparency stays.
Save what you find in one click.
Kortex is a Chrome extension for Gemini Notebook (formerly NotebookLM). It sends AI chats, web pages, posts and YouTube videos into the notebook you pick. It keeps your notebooks organized. It exports them back out.
No card needed.