How do I convert JPG to WebP?

Drop your JPG file onto this page and the WebP version is produced immediately, in your browser. There is no upload, no queue and no account — the conversion runs on your own device using the canvas API.

Does converting JPG to WebP lose quality?

WebP is a lossy format, so some detail is discarded when re-encoding. At high quality the difference is invisible at normal viewing size, but keep your original if you may need to edit it later.

Is my JPG file uploaded to a server?

No. The file is read by your browser, decoded and re-encoded on your device, and handed straight back. Nothing is transmitted, which matters when the image is a document, a screenshot of something private, or a photograph with location data in it.

Why would I convert JPG to WebP?

Does both jobs: lossy like JPG but 25–35% smaller at matching quality, and lossless with transparency like PNG. Supported by every current browser. That is usually the reason. No transparency at all, and it puts visible halos around hard edges — which makes it the wrong choice for text, logos and screenshots.

JPG to WebP

Convert JPG to WebP in your browser. Free, no upload, no signup.

ImageRuns in your browserFree, no signup

About the JPG to WebP

JPG is JPEG. Built for photographs. Its compression discards detail the eye is least sensitive to, so a photo can drop by 90% with no visible change. No transparency at all, and it puts visible halos around hard edges — which makes it the wrong choice for text, logos and screenshots.

WebP is WebP. Does both jobs: lossy like JPG but 25–35% smaller at matching quality, and lossless with transparency like PNG. Supported by every current browser. Older desktop software and some email clients still cannot open it, so it is a web format rather than a delivery format.

Both formats store the full image, so this conversion changes the container rather than the picture. File size will differ — that is the point of converting — but nothing visible is discarded.

The whole conversion happens on a canvas in your own browser. The file is read from disk with the File API, decoded, redrawn and re-encoded locally, so it is never uploaded and there is no size limit beyond your device's memory.

How it works

Drop in a JPG file — it is read by your browser, not uploaded.
It is decoded and re-encoded as WebP on your own device.
Download the result. Nothing is stored anywhere.

Frequently asked questions

How do I convert JPG to WebP?: Drop your JPG file onto this page and the WebP version is produced immediately, in your browser. There is no upload, no queue and no account — the conversion runs on your own device using the canvas API.
Does converting JPG to WebP lose quality?: WebP is a lossy format, so some detail is discarded when re-encoding. At high quality the difference is invisible at normal viewing size, but keep your original if you may need to edit it later.
Is my JPG file uploaded to a server?: No. The file is read by your browser, decoded and re-encoded on your device, and handed straight back. Nothing is transmitted, which matters when the image is a document, a screenshot of something private, or a photograph with location data in it.
Why would I convert JPG to WebP?: Does both jobs: lossy like JPG but 25–35% smaller at matching quality, and lossless with transparency like PNG. Supported by every current browser. That is usually the reason. No transparency at all, and it puts visible halos around hard edges — which makes it the wrong choice for text, logos and screenshots.

Privacy

Everything happens locally. Your files are read by your own browser, processed on your device, and never uploaded — closing the tab is all it takes to erase them.

JPG to WebP

About the JPG to WebP

How it works

Frequently asked questions

Privacy

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