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ImgWrench

JPG to WebP Converter

Turn JPG photos into WebP files for faster websites, at the same width and height, with the quality you choose.

Convert to

Everything happens on your device. Nothing is uploaded.

Specs

OutputOne .webp per image, same width and height
Quality10 to 100, 90 by default
TransparencyKept when the source has it (PNG input)
InputJPG and JPEG (PNG, WebP, GIF, AVIF and BMP work too), up to 20 files at once
BrowsersCreating WebP needs a browser that can encode it; the tool checks and tells you if yours can't

Specs last verified: 2026-10-24

ImgWrench's JPG to WebP converter turns JPG and JPEG photos into WebP files at the same width and height. WebP files are usually smaller at the same visual quality, which helps pages load faster.

How to convert JPG to WebP

  1. Drop up to 20 JPG files into the tool above.
  2. Set the quality: 90 looks the same as the original, 75 to 85 saves more.
  3. Compare the sizes shown next to each file.
  4. Download each WebP, or all of them as a ZIP.

Why WebP for websites

WebP was made for the web. At the same visual quality, it's usually smaller than JPEG, and unlike JPEG it can also hold transparency. Every current web browser displays it.

Picking a quality

Higher quality keeps more detail and makes bigger files. The default of 90 is safe for any photo. Product photos and blog images usually look fine between 75 and 85. Change the slider after dropping your files and every image is converted again, so you can see the trade-off straight away.

Why ImgWrench

  • Same size out. No resizing or cropping.
  • Checked output. If your browser can't create WebP, you're told instead of getting a mislabelled file.
  • Private by design. Your photos never leave your device.

Frequently asked questions

How do I convert JPG to WebP?

Drop one or more JPG files into the tool above and WebP is already selected. Each photo is converted at its original width and height with quality 90. Move the Quality slider to make files smaller or sharper, and watch the size next to each file change. Download each WebP, or all of them as a ZIP.

Is WebP smaller than JPEG?

Usually, at the same visual quality, which is why it's popular for websites. How much smaller depends on the photo, so the tool shows the size before and after for every file instead of promising a number. If a WebP ever comes out bigger, lower the quality a little, or keep the original JPEG for that image.

What WebP quality should I use?

Start at the default of 90, which looks the same as the JPEG for almost every photo. For web pages, 75 to 85 is a common choice and gives noticeably smaller files. Go lower only for thumbnails or previews. You can change the slider after dropping your files, and every image is converted again straight away.

Why does the tool say my browser can't save WebP?

Some browsers can open WebP images but can't create them, and would quietly save a PNG instead. ImgWrench checks every file it makes, so you get a clear message rather than a file with the wrong format inside. Open this page in Chrome, Edge or Firefox to convert JPEG to WebP.

Can I convert JPEG to WebP in bulk?

Yes. Drop up to 20 JPG or JPEG files at once and each one becomes its own WebP with the quality you picked. Download them one by one, or all together as a ZIP. File names stay the same apart from the extension, so product.jpg becomes product.webp, ready to upload to your site.

What if someone can't open my WebP file?

Current web browsers all display WebP, but some older apps and upload forms don't accept it. Keep your original JPEG for those, or turn the WebP back into a widely supported format with the WebP to PNG converter. On a website, WebP images are the better choice for faster loading.

Are my JPG files uploaded anywhere?

No. JPG to WebP runs entirely in your browser, so your photos never leave your device and are never sent to a server. Reading, converting and zipping all happen locally on your computer or phone. You can check this yourself: open your browser's network tab while you convert, and you'll see that no image data is sent anywhere.