Drag & drop your .jpg files here — convert many at once — or click to choose
What is JPG, and why convert it?
JPG (or JPEG) is the workhorse photo format that has powered cameras and the web for decades. It compresses photographs well and opens literally everywhere, which is exactly why so many images on your site are JPGs. The trouble is that JPG's compression is now a generation behind: newer codecs can hit the same visual quality in noticeably fewer bytes. On a content-heavy site those extra kilobytes add up across every image and every visitor. Converting JPG to WebP keeps the photo looking the same while trimming the download size that affects page speed.
Why convert JPG to WebP?
WebP is Google's modern web format, and for photographs it typically beats JPG on size at matching quality. Convert JPG to WebP when you want to:
- Speed up your website by serving photos that are smaller than their JPG originals.
- Lower bandwidth bills on galleries, blogs and product pages with lots of imagery.
- Improve page-speed and SEO metrics that increasingly weigh image efficiency.
- Standardise your assets on a single, lean format across a site or theme.
If a destination still rejects WebP and demands the classic format, you can always go back with WebP to JPG.
JPG vs WebP vs PNG
| Format | Compatibility | File size | Transparency | Best for |
|---|---|---|---|---|
| WebP | Modern browsers | Smallest | Yes | Fast web photos |
| JPG | Universal | Small | No | Sharing, printing, legacy apps |
| PNG | Universal | Large | Yes | Graphics and transparency |
How to batch convert JPG to WebP
- Drag your .jpg photos into the box above, or click to select many at once.
- Set the quality slider — around 80% usually shrinks files well while photos still look great.
- Download each WebP, or click Download all to save the entire batch as a ZIP.
Because JPG is already lossy, keep the slider reasonably high to avoid stacking a second round of compression on top of the first.
Common jobs this tool helps finish
- Optimising a photo gallery so a page full of images loads quickly.
- Compressing product shots for a store that supports WebP delivery.
- Prepping blog or article images to improve page-speed scores.
- Bulk-converting a JPG export folder into lean web-ready assets before deploy.
Is it private?
Yes. Each JPG is decoded and re-encoded to WebP inside your browser, so your photos are never uploaded to a server and never stored by us. Most online converters route your files through a remote machine — here, they stay on your device.
Related converters
Need to reverse it for a legacy app? Use WebP to JPG. Optimising graphics instead of photos? Try PNG to WebP. You can also squeeze JPGs without changing format using Compress Image.
Frequently asked questions
Will converting JPG to WebP lose quality?
Some re-encoding loss is possible since both formats are lossy, but at 80% quality or higher it is generally invisible while the file gets smaller. Keep the slider high to be safe.
How much smaller are WebP files than JPG?
For typical photos WebP often saves 25–35% at comparable quality, which adds up fast across an image-heavy site.
Do all browsers support WebP?
Yes. Every modern browser displays WebP, making it a safe default for websites. For very old software, stick with JPG.
Can I batch convert many JPG files at once?
Yes. Add as many JPG files as you like and convert the whole set in one batch, then download them together as a ZIP.
Are my images uploaded?
No. Everything runs in your browser — your files never leave your device.