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JPG to WebP Converter

Convert JPG photos to WebP in your browser. Quality 82 looks the same to most eyes, and the queue shows each new size before you save.

  • Unlimited
  • No signup
  • Private
  • Works offline

JPG batch converter

Add JPG files and choose WebP conversion settings.

JPG → WebPNo files yet

How good it looks, not how big it gets. 82 looks the same as the JPG to most eyes.

Makes the image smaller in pixels first. This saves more than quality does.

Reduces the image size in pixels to make the file smaller.

Add JPG files to start

How it works

  1. 01

    Add your JPG files

    Drop, paste or pick any number. The files stay in this tab, and the page sends them nowhere.

  2. 02

    Set the quality

    82 is the default, and on a photo the second pass is hard to see. Lower it if the file has to be tiny.

  3. 03

    Convert and download

    Save one file, or the whole batch as a zip. Your JPG files stay as they are.

What a second squeeze costs

A JPG is already a squeezed file. It threw detail away once to get small. Converting to WebP squeezes what is left a second time, so the picture cannot get better here. It can only get smaller. At quality 82 that second pass is hard to see on a photo. Low numbers stack two sets of marks on the same edges, and the result looks worse than either format would on its own.

The gain is real all the same. WebP packs the same picture into less space. A photo from a camera or a phone often drops by a quarter to a half. A JPG that someone already squeezed hard has little left to give, and can even come out bigger. The queue shows the new size on every row before you save anything.

Keep the JPG. Converting back is possible, but it is a third round of loss and it will not hand you the file you started with. WebP is for the copy you publish. The JPG is the one to hold on to, and the one to send anywhere that still refuses WebP.

Size
Usually smaller. Photos often drop by a quarter or more.
Quality
82 by default. A second lossy pass, so keep it high.
Support
Every current browser reads WebP. Old software may not.
Originals
Never touched. Converting always writes a new file.

Frequently asked questions

How much smaller will my files get?
A photo straight from a camera or a phone usually drops by a quarter to a half. A JPG that was already squeezed hard has little left to give, and can even come out bigger. Every row shows the new size before you save.
Does converting hurt the picture?
A little. The JPG has been through one round of loss already, and WebP adds a second. At 82 that is hard to see on a photo. Drop to 50 and the two rounds of marks stack up on the same edges.
What quality should I pick?
Leave it at 82 unless you have a reason. Go to 90 when the picture will be looked at closely or edited again. Drop to 65 only when the file has to be small and the picture is busy enough to hide it.
Can I get my JPG back afterwards?
You can convert the WebP back with WebP to JPG, but it will not be the file you started with. Each lossy save throws a little away. Keep the JPG if you may need it.
Will WebP work everywhere?
Every current browser reads it, so the web is safe. Older design software, some print shops and a few upload forms still refuse it. Keep a JPG for those.
Is there a lossless setting?
No, on purpose. A lossless WebP stores the JPG's own marks exactly, and comes out several times larger than the file you started with. That is the opposite of why anybody converts a photo.
How many files can I convert at once?
As many as you like. Files run one at a time, so a long queue never holds a stack of decoded images in memory. Your free memory is the only real ceiling.
Do my images get uploaded?
No. Every decode and re-encode happens in this tab. The image data never leaves your device, so there is no copy to delete.
Are my JPG files changed?
No. Your browser reads each one and writes a separate new WebP for you to download. The file on your disk is untouched.
What happens to EXIF data?
The tool drops it, including the camera and location data. Your browser redraws the pixels on a canvas, and nothing else comes along. The output is tagged sRGB.
Does this work offline?
Yes. Once the page has loaded, converting carries on with no network connection.

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