Convert JPG to WebP

Make website images about 25 to 35% smaller by converting JPG to WebP, at the same visual quality. Convert one photo or a whole batch.

JPG → WebPBatch Runs on your device

JPG to WebP · Step 1 of 3 · Add your photo

Drop images to convert

or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB

→ WebPBatch ready

Processed on this device. Nothing is uploaded.

Example

Before and after

We ran this sample through the jpg to webp tool above. The numbers under each image are measured from the real files.

Sample input: 2333 x 3111 px · 1.3 MB · JPG — **Before**2333 x 3111 px · 1.3 MB · JPG

Result from this tool: 2333 x 3111 px · 834 KB · WebP — **After**2333 x 3111 px · 834 KB · WebPShown smaller here

How to

How to convert JPG to WebP

1.
Drop your JPG files. You can add many at once.
2.
Convert. Transparent areas stay transparent.
3.
Download. Save each WebP, or all of them as a ZIP.

Why this size

Why convert JPG to WebP

Image weight is the biggest part of most web pages. WebP stores the same photo in about a quarter to a third fewer bytes than JPG, so pages load faster and score better on Core Web Vitals.

Every current browser shows WebP. Keep your JPG originals for email, print and upload forms, which do not always accept WebP.

Compare

JPG vs WebP: what changes when you convert

	JPG	WebP
Best for	Photos	Websites and apps
Compression	Lossy, adjustable	Lossy or lossless
Typical photo size	300 KB - 1 MB	200-700 KB
Transparency	No (filled with white)	Yes, kept
Accepted by forms	Almost always	Sometimes

Tips

Tips that make a difference

Convert to WebP when

You publish images on a website and want them to load faster.

Keep JPG when

The file already works where you need it. Converting again never adds quality.

Convert a whole folder

Drop all your JPG files at once. Each one becomes a WebP with the same name, and you can download them together as a ZIP.

Avoid

Common problems and fixes

A form rejects the WebPUpload forms often want JPG. Use the WebP on your website and keep the JPG for forms and email.
The WebP is hardly smallerA small or already heavily compressed JPG has little left to save. Convert from the original photo.
An old app cannot open itSome older desktop apps do not read WebP yet. Keep the JPG original next to it.

FAQ

JPG to WebP: questions

Usually 25 to 35% at the same visual quality. Simple images can shrink even more.

Yes. All current browsers display WebP, and most website builders and content systems accept it.

Yes. Some forms, printers and older apps still need JPG, so keep the original next to the WebP.

Up to 25 MB per image. Add up to 5 files at once, or 50 with a free account.

No. Conversion runs in your browser, so your images never leave your device.

Checked

How we checked this page

Checked by the SizePort team on 3 October 2026.

We compare every size and rule on this page with the official sources below, and test the tool with sample photos before it goes live. Rules and platforms change, so if something here is out of date, tell us and we will correct it.

How the tool works

The image is decoded in your browser and saved again in the new format at a high quality setting. PNG and WebP keep transparent areas; JPG and GIF get a white background. A JPEG converted to JPG without a size limit keeps every byte and only changes the file name. Everything happens in your browser; your images are never uploaded.