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WEBPHeavy images are a common reason websites load slowly. WEBP files are usually smaller than JPG at similar quality, which makes them a good choice for web pages and online shops.
How to use the JPG to WEBP Converter
- Upload your JPG.
- Press WEBP to convert it.
- Use the new file on your website.
What to expect
Lighter pages
Smaller images mean less data to load, especially on mobile connections.
Modern browser support
All current major browsers display WEBP.
Keep your original
Hold on to the JPG for places that don't accept WEBP yet.
Why websites use WEBP
Images are often the heaviest part of a web page. Using a more efficient format means there is less for visitors to download, which is especially useful on slow mobile connections. Faster pages are also more pleasant to use, and image weight is one of the easiest things to improve.
- Product photos in an online store.
- Blog and news images.
- Portfolio galleries with many pictures.
- Hero images at the top of a landing page.
How we save your WEBP
Images are saved at quality 90, a level that aims to keep photos looking good while cutting file size. The width and height don't change. For the best savings on a website, first resize very large photos to the size they will be displayed at. A 4000-pixel image in a 800-pixel slot wastes data in any format.
When WEBP helps most
Always compare the result with your original, and keep whichever works better for you.
| Your JPG | What to expect |
|---|---|
| A large, high-quality photo | Often a useful saving |
| An already heavily compressed JPG | A small saving, or sometimes none |
| A very small thumbnail | Little difference |
Using WEBP on your site
- Keep your original JPG in case you need it for email, print or social media.
- Check your platform, as many CMS tools and hosts can create WEBP automatically.
- Use the HTML picture element if you need a JPG fallback for older software.
- Give every image descriptive alt text, as this helps accessibility and image search.
Related tools
PNG to WEBP does the same job for graphics and screenshots. WEBP to JPG makes a compatible copy. For the newer AVIF format, use the image converter. See JPG vs PNG vs WEBP for when to use each format.
If your WEBP isn't what you expected
| What you see | Likely cause | What to do |
|---|---|---|
| Little or no saving | The JPG was already heavily compressed | Keep whichever file is smaller |
| An upload is rejected | That site doesn't accept WEBP | Use the original JPG there |
| Pictures load slowly anyway | The image dimensions are too large | Resize it to its display size, then convert |
| An error when converting | A damaged or unusual file | Open and re-save the image, then try again |
Other ways to speed up images on your site
Google's PageSpeed Insights can show you which images are slowing down your pages. Our guide to JPG, PNG and WEBP explains more about choosing formats.
- Serve images close to the size they are displayed at, rather than full camera size.
- Set a width and height on each image, so the page doesn't jump around while loading.
- Lazy-load images further down the page, so they load only when needed.
- Don't lazy-load the main image at the top, as visitors should see it right away.
- Use a CDN or your host's image optimization, if they offer it.
Should you convert your whole site?
Start with your largest images and busiest pages, as they give the biggest benefit for the least work. Many website platforms and plugins can create WEBP copies automatically, which is more practical for a big site. Manual conversion is ideal for a small site, or a handful of important images.
Frequently asked questions
Why convert JPG to WEBP?
To get a smaller file at similar visual quality, which helps pages load faster.
How do I do it?
Upload the JPG and press WEBP. The new file downloads automatically.
Is the file always smaller?
Usually, but not always. It depends on the image and how it was saved before.
Are my images kept?
Your files are only used for the conversion and are deleted from the server afterwards.
Do all browsers support WEBP?
All current major browsers do, including Chrome, Edge, Firefox and Safari.
Will my image look worse?
It is saved at high quality, so most people won't see a difference in normal viewing. Compare the two if you are unsure.
Should I use WEBP for email or print?
Usually not. JPG is more widely supported for those uses.
Can I convert several JPGs at once?
Yes. Select several files and you get a ZIP containing the WEBP files.
Helpful guides
- JPG vs PNG vs WEBP: Which Image Format Should You Use?A plain comparison of quality, file size and transparency, and which to pick for each job.
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