Why should I convert JPG to WebP?
To get smaller image files at a similar look, which makes web pages lighter and faster to load. WebP is meant for the web, so it is most useful for images that visitors download in a browser.
Convert JPG to WebP
Make your images lighter for the web. Nothing is uploaded.
Your files never leave this device.
Convert JPG images to WebP by dropping them here and choosing WebP. WebP usually makes smaller files than JPG at a similar look, which helps web pages load faster, and current browsers all display it. Set the quality slider, convert in your browser with no upload, and download the files one by one or as a ZIP.
How to use
- Drop your JPG files onto the page.
- Choose WebP as the output format.
- Set the quality; the default is 90.
- Compare the sizes, then download each file or a ZIP.
Frequently asked questions
What WebP quality should I choose?
Start with the default of 90 and try lower values if you want smaller files. The slider runs from 30 to 100, and the size of each result is shown in the list, so you can compare settings on your own images.
Will the WebP always be smaller than my JPG?
Usually, but not always. An already heavily compressed JPG can come out about the same size or even larger. If a result is larger than the original, lower the quality or keep the JPG.
Do all browsers and apps support WebP?
Current major browsers do, but some older editors, upload forms and print services do not. Keep your original JPG files as a fallback for anything outside your own website.
Does JPG to WebP lose quality?
Yes, a little, because the JPG is compressed a second time with loss. If you still have the original camera file or a PNG master, convert from that instead of from a JPG that was already saved at low quality.
Does the WebP keep the photo's location and camera data?
No. Converted files carry no metadata, so the camera, date and GPS location are not copied. For images on a public site this is usually what you want.
What if I need the image to be under a specific file size?
Use the image compressor, which can aim for a target size and can output WebP. This converter gives you a quality slider but does not aim for a fixed number of kilobytes.
What is WebP good for?
WebP is an image format built for the web. It can compress with loss, like JPG, and it can also store transparency, so one format covers many uses. For photos on a website, the main reason to switch is size: smaller files mean faster pages and less data for your visitors.
That matters most on pages with many images, such as a product catalog, a blog or a gallery, where the images are the heaviest part of the page.
It matters less for a single photo that you only send to a friend. For that, a JPG is simpler and works everywhere, so convert to WebP when the images will be published on a site you control.
How do you pick the right quality?
Quality is a trade-off between size and visible detail. Convert one representative photo at 90, then at 80, and look at both at full size. If you cannot tell them apart, the lower setting saves space. Flat skies, skin and fine textures show problems first, so judge on those areas.
Do the same test on a graphic with text, because lossy compression is harder on sharp edges. For images where edges must stay clean, you may prefer to keep PNG, which the JPG to PNG page covers.
Should you replace the JPG files on your site?
Not blindly. Keep the originals somewhere safe, publish the WebP versions, and test the pages in the browsers your visitors use. Because WebP is not accepted by every program, do not use it for images you send as email attachments, upload to marketplaces or hand to a printer; use JPG there, and bring a WebP back to JPG with the WebP to JPG page whenever you need to.
If an image is much larger in pixels than the space where it is displayed, shrink it first with the image resizer. Reducing the dimensions often saves more than changing the format. The main image converter covers the rest of the format pairs.
How it compares
| This tool | Upload-based services | |
|---|---|---|
| Do files leave your device? | No | Yes |
| Account required | No | Often |
| Daily limit | None | Often |
| Watermark | None | Sometimes |
Limits and privacy
- WebP is not accepted everywhere; some older software and services still need JPG.
- Converting an already compressed JPG adds another round of loss.
- There is no target-size mode here; only the quality slider controls size.
- The WebP contains no metadata from the JPG.
Standards and sources
Use it in your AI assistant
With the local MCP server, an assistant can handle whole folders, for example “convert the JPG files in my product-photos folder to WebP at quality 80”. The convert_image tool runs on your computer, so nothing is uploaded.