Convert JPG to WebP
Typically 25–35% smaller than the JPEG at the same visual quality. Convert hundreds at once.
Or drop images here
What you actually gain
WebP produces files roughly 25–35% smaller than JPEG at comparable visual quality. That is a smaller gain than converting from PNG, because JPEG is already a lossy format doing much of the same work — but on a page carrying thirty product photos it is still the difference between a fast page and a sluggish one.
WebP also gives you two things JPEG cannot: transparency, and lossless mode when you need it.
The generation-loss problem
This matters and most converters do not mention it. Your JPEG has already been through lossy compression. Converting it to WebP compresses it a second time, on top of artefacts that are already baked in.
The practical consequences:
- Do not set quality below 75. With JPEG, 60 might look acceptable. Starting from an already-compressed JPEG, 60 will visibly degrade the image — blotchy skies, mushy detail, halos around edges.
- Convert from the highest-quality original you have. If you still have the camera file or the export from your design tool, use that rather than a JPEG that has already been through a CMS.
- Convert once. Do not convert to WebP, then back to JPEG, then to WebP again. Each round trip permanently removes detail.
Recommended quality settings
| Source | WebP quality |
|---|---|
| High-quality JPEG straight from a camera | 80 |
| JPEG already compressed by a CMS or website | 85 |
| Product photography for e-commerce | 80–85 |
| Photos containing text or fine detail | 88–92 |
| Large background or hero images | 75 |
Resize first, convert second
Format conversion typically saves you around 30%. Resizing an oversized image routinely saves 90% or more.
A 4000 px photo displayed in a 600 px slot wastes roughly 97% of the pixels you sent. No format can rescue that. If your JPEGs came off a camera or a phone, set a resize width before you convert — the combined saving is far larger than either step alone.
What happens to EXIF data
Camera JPEGs carry EXIF metadata: date, camera model, exposure settings, and often GPS coordinates. Converting through the browser's canvas discards this metadata.
For a website that is a benefit — smaller files, and you are not accidentally publishing the GPS location where a photo was taken. But if you rely on that metadata for cataloguing, keep your originals. It cannot be recovered afterwards.
Converting a batch
- Drop your JPEGs in above. WebP is already selected as the output format.
- Leave quality at 80, or raise it to 85 if the source JPEGs are already compressed.
- Set a resize preset if the images are larger than they need to be.
- Process, then download as a ZIP.
Related: PNG to WebP, WebP to JPG, and bulk image resizer.
Frequently asked questions
Is WebP better than JPEG?
For websites, generally yes. WebP files are around 25–35% smaller at the same visual quality, and it supports transparency. For uploading to platforms you do not control, JPEG remains the safer choice.
Will converting reduce my image quality?
Slightly, because both formats are lossy and your JPEG has already been compressed once. At quality 80 or above the difference is invisible on most photographs.
Does the converter keep EXIF data?
No. Metadata including camera settings and GPS coordinates is discarded during conversion. Keep your originals if you need that information.
What is the difference between JPG and JPEG?
Nothing. They are the same format. The three-letter extension is a leftover from old versions of Windows that only allowed three characters.
Can I convert HEIC photos from my iPhone?
Not reliably. Most browsers cannot decode HEIC. Set your iPhone to capture in Most Compatible mode under Settings, Camera, Formats, or convert to JPEG first.
Should I upload WebP to Instagram or Facebook?
No. Social platforms re-compress everything you upload and support for WebP is inconsistent. Upload JPEG to social platforms and use WebP on your own website.