JPG to WebP converter

WebP typically produces smaller files than JPG at similar visual quality — a good choice for websites, portfolios, and anywhere load speed matters. If you have a folder of JPEG photos and want leaner assets without sending them to a cloud service, this tool converts them locally.

Everything runs in your browser using the Canvas API. Add your JPG files, select WebP as the output format, tune quality, and download. No server, no account, no server in the middle — your images never leave your device.

Runs in your browser. Nothing leaves your device.

Input: JPG and any image format your browser can read
Output: WebP with adjustable quality
Resize: original, email (800px), or social (1200px) presets
Batch: convert multiple images at once and download as ZIP
Privacy: processing happens on your device, not on a remote server

Also try our resize image tool, PNG to JPG converter, compress image tool, batch image converter, or the general image converter and private image converter pages.

How to verify nothing uploads

You don't have to take our word for it. Two checks, each under a minute:

Watch the network. Open DevTools (F12, or Cmd + Option + I on macOS), switch to the Network tab, then run the tool. You'll see requests for the page, scripts, ads, and analytics — none of them carrying your files.
Go offline. Run the tool once so your browser has all the code, then turn on airplane mode or switch off Wi-Fi and run it again. It still works, because the processing happens on your device.

Ads and anonymous analytics make their own requests and never include your files. See our privacy policy for the full list.

FAQ

Why convert JPG to WebP?

WebP typically produces smaller files than JPG at similar visual quality, which helps websites load faster and saves storage space. It is a good choice when you need lean image assets for the web.

Does WebP work in all browsers?

WebP is supported in all major modern browsers including Chrome, Firefox, Safari, and Edge. If you need maximum compatibility with very old software, JPG may still be the safer choice.

Are my photos sent to a server?

No. This converter runs entirely in your browser. Your JPG files are decoded and re-encoded locally using the Canvas API — they never leave your device.

Can I adjust WebP quality?

Yes. Use the quality slider to balance file size and visual fidelity. Lower values produce smaller files; higher values preserve more detail.