Scoped SEO
Add to ChromeJPG to WebP Converter
Convert JPG and JPEG photos to WebP and cut page weight without visible loss. Pick the quality, check the saving on each photo, and download a ZIP. Nothing leaves your browser.
- 1Add your images
- 2Choose quality
- 3Download
How to use it
- Drop your JPG or JPEG files on the box.
- Start at quality 80 and raise it only if you see artifacts.
- Download single files or a ZIP of everything.
Your privacy
This tool runs in your browser. Your files and text are never uploaded or stored.
Spot this in the extension
The Images tab of Scoped SEO flags oversized images, missing alt text and non-WebP formats on any page, and links straight here to fix them.
Why photos gain the most from WebP
JPG has been the default photo format for decades, and lossy WebP is built to beat it. At similar visual quality, WebP photos are commonly 25 to 35 percent smaller than the JPG they came from. On a gallery, blog or shop with dozens of photos per page, that adds up to a real difference in load time.
JPEG and JPG are the same format; the second spelling exists because older systems wanted three-letter extensions. Both are accepted here.
Choose a quality for your photos
| Use | Quality | Notes |
|---|---|---|
| Full-width hero image | 80 to 85 | Compare against the original before publishing. |
| Article photo | 75 to 80 | The sweet spot for most pages. |
| Thumbnail or card | 70 to 75 | Small images hide more compression. |
| Product photo with fine texture | 85 to 90 | Keeps stitching, grain and edges crisp. |
If the preview looks soft or blocky, raise the quality by five. If it looks identical to the original, try five lower.
Avoid converting the same photo twice
A JPG has already lost some detail, and a lossy WebP made from it loses a little more. One conversion is fine. Converting a WebP back to JPG and then to WebP again slowly degrades the picture, so always convert from your original file, and keep that original somewhere safe.
Camera details such as the model and GPS location in the JPG are not written into the WebP, which also helps if you publish photos and do not want to expose where they were taken.
Resize first for bigger savings
A 6000 pixel wide photo shown at 1200 pixels is mostly wasted bytes. Use the Image Resizer to bring it down to about twice the displayed width, then convert it here. Then add a meaningful file name and alt text, which the Alt Text Checker can audit for the whole page.
Common questions
How much smaller is JPG converted to WebP?
Usually about 25 to 35 percent at similar visual quality. The exact saving appears next to each file.
What quality should I pick for photos?
Quality 75 to 85 is the sweet spot for most photos. Go higher only for hero images you want to keep very crisp.
Can I convert HEIC or RAW files here?
Not yet. This tool reads formats your browser can open, such as JPG, PNG, GIF, BMP and WebP.
Is JPEG to WebP the same as JPG to WebP?
Yes. JPEG and JPG are two spellings of the same format, and this converter accepts both.
Can I convert HEIC or RAW photos here?
Not directly. The tool reads formats your browser can open, such as JPG, PNG, GIF, BMP and WebP. Export a JPG from your photo app first.
Will the WebP always be smaller than my JPG?
Almost always at similar quality, but a JPG that was already compressed hard can come out about the same size. The size next to each file tells you before you download.
Related tools
PNG to WebP
PNG to WebP with transparency. Lossless or lossy, batch and ZIP.
Compress JPEG
JPEG compression with MozJPEG. See the saving per photo.
Image Resizer
Resize by pixels or percent. Export WebP, JPG or PNG.
WebP to JPG
WebP to JPG with quality and background color. Batch and ZIP.
Audit the whole page in one click
Scoped SEO checks content, links, images, schema, speed and AI search readiness, then points you to the right fix.
Add to Firefox