Convert JPG to WebP
Converting JPG photos to WebP is the quickest way to make an image-heavy website faster. The same picture at the same visual quality comes out around 30% smaller, and the conversion happens entirely in your browser with nothing uploaded.
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Results
How to convert JPG to WebP
- Drop one or many JPG images into the tool below.
- The output format is already set to WebP. Adjust the quality if you like.
- Click run to convert.
- Download each WebP, or grab them all as a ZIP.
JPG versus WebP for photographs
JPEG has been the default photo format for over thirty years. It is supported everywhere and compresses photographs well, but its compression scheme dates from the early 1990s. WebP uses more modern techniques: better prediction of neighbouring blocks, an in-loop deblocking filter that smooths the tell-tale JPG "blockiness", and more efficient entropy coding. At the same perceived quality, WebP produces files around a quarter to a third smaller. On a page with twenty product photos, that is the difference between two megabytes and one and a half.
Quality is not a like-for-like number
A quality of 80 in JPG and 80 in WebP do not produce the same result. WebP at 80 generally looks like JPG at 85 to 90. So if you are used to saving JPGs at 85, try WebP at 75 to 80 and compare. The saving compounds: lower quality number plus a more efficient codec.
| Original JPG | WebP setting | Typical output |
|---|---|---|
| Phone photo, 4 MB, quality ~92 | 80, max width 1,920 | 200 to 350 KB |
| Product shot, 800 KB, 1,500 px | 82 | 250 to 350 KB |
| Blog image, 300 KB, 1,200 px | 78 | 90 to 140 KB |
| Thumbnail, 60 KB, 400 px | 75 | 15 to 25 KB |
Generation loss and why you should keep the original
Every lossy re-encode throws away a little more information. Converting a JPG to WebP once is fine. Converting a WebP back to JPG, editing it, saving it as JPG again and converting to WebP a second time will visibly degrade the image. Treat the JPG that came out of your camera or your editor as the master, and produce the WebP from that master each time you need it.
Where JPG is still the right choice
- Email attachments going to people whose mail client you do not control.
- Files handed to a printer or a photo lab.
- Uploads to platforms that still reject WebP, such as some marketplace listing tools and older CMS installations.
- Any workflow that depends on embedded EXIF data, since this converter strips it.
For everything shown in a browser, WebP is the better choice, and the conversion above will get you there in a couple of clicks.
Frequently asked questions
Will converting JPG to WebP lose quality?
JPG is already lossy, so the WebP is re-encoded from the decoded JPG pixels. At quality 80 or above the difference is invisible, and the WebP will still be materially smaller. Avoid converting back and forth repeatedly; keep the original JPG as your master.
How much smaller will the file be?
Typically 25 to 35% smaller at matched quality. If the JPG was saved at a very high quality setting, or is large in pixels, the saving is often more like 50 to 60% once you pick a sensible WebP quality.
Does WebP support EXIF and colour profiles?
The format can carry them, but this converter writes a clean file without camera metadata, which also removes GPS location data. Colours are converted to sRGB, which is what browsers display.
Can I convert a whole folder at once?
Yes. Drop all your JPGs in together and download the converted WebP files as one ZIP.
Your files never leave your device
Every tool on Squishly Tools is 100% free and runs entirely inside your browser. Your images and documents are processed on your own computer and are never uploaded to a server. There are no accounts, no watermarks and no catch.