Convert JPG to WebP
Make website images smaller without visible quality loss. Convert JPG or PNG to WebP, adjust quality and size, and see exactly how much you save. Everything runs in your browser.
Free · No sign-up
How to use it
- Choose JPG or PNG images, drop them on the box, or paste with Ctrl+V.
- WebP is already selected. Each image is converted right away, with the old and new file size shown.
- Adjust Quality (80 to 85 suits most photos) and, for web use, enter a maximum width such as 1600 pixels. All images update automatically.
- Download each WebP, or all of them as a ZIP, and upload them to your website.
Why use this tool
See the savings
Each file shows its size before and after, and the summary shows the total for the batch.
Quality slider
Find the balance between file size and sharpness. Changes apply to every image in the list.
Resize for the web
Camera photos are often 4000 pixels wide or more. A maximum width makes them much lighter.
Transparency kept
PNG images with transparent backgrounds stay transparent in WebP.
Batch and ZIP
Convert up to 50 images at once and download them in one ZIP file.
Private
No upload, no account. Your images are processed on your own device.
Why convert images to WebP?
Images are usually the heaviest part of a web page. According to Google, lossy WebP images are 25 to 34% smaller than comparable JPGs, and lossless WebP images are 26% smaller than PNGs.
Smaller images load faster, especially on mobile data. Large images are a common cause of a slow Largest Contentful Paint, one of the Core Web Vitals that Google uses to measure page experience.
Recommended starting settings
These are starting points, not fixed rules. Compare the result with the original and adjust.
| Image use | Quality | Maximum width |
|---|---|---|
| Full-width hero or banner | 80 to 85 | 1920 to 2400 px |
| Images inside articles | 75 to 85 | 1200 to 1600 px |
| Product photos | 85 to 90 | 1600 to 2000 px |
| Thumbnails and cards | 70 to 80 | 400 to 800 px |
Do all browsers support WebP?
All current versions of Chrome, Edge, Firefox, Opera and Safari display WebP. Safari added support in version 14, on macOS Big Sur and iOS 14. Only very old browsers cannot show it.
Creating WebP files is a different matter: some browsers, including some versions of Safari, can display WebP but cannot save it. If that happens, this tool tells you, and you can use Chrome, Edge or Firefox instead.
Using WebP on your website
- WordPress accepts WebP uploads since version 5.8.
- Keep the original JPG or PNG as a master copy and publish the WebP version.
- Set the width and height attributes on images so the page does not jump while loading.
- If you must support very old browsers, use a picture element with a JPG fallback.
Frequently asked questions
Does WebP reduce image quality?
Lossy WebP removes some detail, like JPG. At a quality of 80 to 85 the difference is usually hard to see, while the file is noticeably smaller. Use a higher quality for product photos or images with fine text.
Why is my WebP sometimes bigger than the JPG?
If the original JPG was already strongly compressed, converting it at a high quality setting can produce a larger file. Lower the quality a little or set a maximum width, and compare the sizes shown in the list.
Can I convert PNG to WebP?
Yes. Choose or drop PNG files as well. Transparent areas stay transparent in the WebP.
Is WebP better than AVIF?
AVIF can be smaller still, but it is slower to create and not every tool supports it yet. WebP is the safer choice for broad compatibility today.
Are my images uploaded?
No. The conversion happens in your browser. Nothing is sent to a server, and there is no account.
Is there a file limit?
You can convert up to 50 images per batch. The maximum image size depends on your device's memory. If an image is too large, enter a maximum width and it will be converted again.
How to Convert Images to WebP for a Faster Website
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