Convert JPG to WebP

WebP files are typically 25–35% smaller than JPG at the same visual quality — a quick win for page speed. Convert your images locally, with no uploads and no limits.

Drop your images hereor click to choose files — processed on your device, never uploaded

100% private: files are processed in your browser and never uploaded to any server.

How it works

Drop JPG or PNG files into the box above.
Each image is re-encoded as WebP at high quality.
Download the WebP files and use them on your site.

The size saving, and where it comes from

WebP's lossy mode is built on the same ideas as JPEG but with two decades of refinement: better prediction of what a block will look like from its neighbours, and a more efficient way of encoding what is left. In practice the same photograph at the same perceived quality lands 25 to 35 percent smaller. On an image-heavy page that is the difference between a site that feels immediate and one that visibly loads.

The saving is largest on photographs and complex images. Flat graphics and screenshots benefit less, because they were already cheap to encode — though WebP's lossless mode still tends to beat PNG on those by a comfortable margin.

Whether you can actually use it

For the web, yes, without reservation. Chrome, Firefox, Safari and Edge have all supported WebP for years, and every current mobile browser displays it. If the destination is a web page you control, converting is close to free performance.

Outside the browser, be more careful. Some upload forms still reject the extension, older desktop software may not open it, and a file you send to a colleague may simply not display on their machine. The rule of thumb: WebP for anything served on a web page, JPEG for anything you hand to another person or another system.

Good to know

WebP typically saves 25–35% over JPG at the same visual quality, and unlike JPG it keeps transparency — so a transparent PNG converted to WebP stays transparent while getting much smaller.

Browser support is no longer a reason to hesitate: Chrome, Firefox, Edge and Safari have all supported WebP since 2020. Where it still bites is outside the browser, since many editors, print services and upload forms do not accept it. Convert for your website, not for files you are sending to other people.

Format change is not a substitute for the basics. Serving a 4000-pixel image into a 600-pixel slot wastes most of those bytes whatever the format, so resize to the size you actually display first and convert second — the two savings compound.

Frequently asked questions

Is WebP supported by all browsers?

Yes — every modern browser (Chrome, Firefox, Safari, Edge) has supported WebP for years. Legacy fallbacks are only needed for very old software.

How much smaller are WebP files?

Typically 25–35% smaller than an equivalent JPG, and much smaller than PNG for photos. Actual savings depend on the image content.

Does WebP keep transparency?

Yes. Unlike JPG, WebP supports transparency, so converting a transparent PNG to WebP keeps the alpha channel while reducing size.

Should I use WebP or AVIF?

AVIF compresses even better but encodes slower and has patchier tool support. WebP is the safe default today; if you want maximum compression, try our JPG to AVIF converter too.