Convert JPG to WebP

How do I convert JPG to WebP?

1. Choose or drop your JPG photo.
2. Select WebP as the output and set the quality — 75 to 85 suits most web photos.
3. Press Convert, check the result, then download the WebP.

When should you convert JPG to WebP?

If your website is full of JPG photos, converting them to WebP is one of the simplest ways to speed it up. At a similar visual quality WebP files are usually smaller, which shortens loading times on mobile connections and helps the largest image on a page appear sooner.

• Blog and portfolio photos, so pages load faster for visitors.
• Large product galleries in an online shop.
• Hero banners and header images, which are often the largest file on a page.

What do you keep and what do you lose?

You keep

• Width and height.
• A very similar look at the default quality, in a smaller file.

You lose

• A little more detail, since the photo is compressed a second time.
• EXIF data such as camera settings and GPS location — handy if you would rather not publish where a photo was taken.
• Support in some older apps that cannot open WebP.

In our test (Chromium 156.0.8078.4, 2026-10-23), converting a landscape photo (a quality-92 JPG copy of the original PNG) from JPG to WebP at quality 85 changed its size: 750 KB → 551 KB (27% smaller).

Which JPGs gain the most?

Graphics that were saved as JPG gain far more than photos. Our three JPG sources were quality-92 copies of the original PNGs. At quality 85 the website screenshot shrank by 50% and the logo, already flattened onto white, by 57%. The landscape photo gained the least, because JPG already handles soft photographic detail well. Its saving is still worth having on a gallery page with dozens of photos.

The reason is what JPG does to sharp edges. Around text, icons and lines it leaves faint ringing and blocky noise, and spends many bytes describing it. WebP's encoder predicts flat areas and edges from their neighbours, so it rebuilds those regions far more compactly. If your site has interface captures, charts or logos saved as JPG, convert those first: they are the biggest win. To find them, sort your image folder by size and look for small, simple pictures that are still surprisingly heavy; those are usually graphics stored as JPG. Better still, re-export them from the original PNG, which avoids carrying the JPG noise into the new file.