How to use the Convert to WebP tool
- Select JPG, PNG or HEIC images, or drop them onto the box.
- Adjust the quality if you like. 80% is a strong default for websites.
- See how much smaller each image got, then download the WebP files or a ZIP.
Why use WebP?
Images are usually the heaviest part of a web page. WebP, developed by Google, stores the same picture in noticeably fewer bytes than JPG or PNG. Switching your images to WebP is one of the easiest ways to make a site load faster, use less bandwidth, and score better in speed tests.
WebP compared with JPG and PNG
| WebP | JPG | PNG | |
|---|---|---|---|
| Typical size for a photo | Smallest | About 30% larger | Several times larger |
| Transparency | Yes | No | Yes |
| Animation | Yes | No | No |
| Browser support | All modern browsers | All | All |
Choosing the quality
- 80%: the best default for website photos; visually identical to the source in almost all cases.
- 90%+: for portfolios or product images where every detail matters.
- 60–70%: for large background images or thumbnails where size matters most.
Best practice for websites
- Resize images to the largest size they will actually be displayed at.
- Convert to WebP here.
- Give each image descriptive alt text when you add it to your page.
If someone you send a WebP to cannot open it, they can turn it back into a JPG with WebP to JPG.
Frequently asked questions
Do all browsers support WebP?
Yes. Chrome, Edge, Firefox, Safari (since 2020), Opera and all major mobile browsers display WebP. It is safe to use on websites today.
How much smaller is WebP than JPG?
Usually 25–35% smaller at the same visual quality, and often far smaller than PNG for photos. The tool shows the exact saving for each of your images.
Does WebP support transparency?
Yes. PNGs with transparent backgrounds keep their transparency when converted to WebP, usually at a fraction of the size.
Will WebP help my website's speed and SEO?
Smaller images make pages load faster, which improves Core Web Vitals such as Largest Contentful Paint. Google's PageSpeed Insights often recommends serving images in WebP for this reason.
Can I use WebP in WordPress?
Yes. WordPress has supported WebP uploads since version 5.8. Convert here and upload the .webp files like any other image.
Are my images uploaded?
No. The conversion happens in your browser using its built-in WebP encoder.
Guide by the ToolsYes team · Last updated