Convert images to WebP
WebP is the pragmatic web format: clearly smaller than JPG and PNG, supported by every current browser, and it keeps transparency.
- Runs entirely in your browser
- Works offline
- No upload
- No sign-up
- No watermark
Loading the tool…
How it works
- Drop your images.
- Set the quality — 80 is a good default for photographs.
- Convert and download, individually or as a ZIP.
Why nothing is uploaded
Every operation on this page is done by code running inside your browser tab, using the same engine that renders web pages. The file is read from disk into your tab’s memory, transformed there, and written back out as a download. It is never sent anywhere — not to us, not to a third party.
Verify it yourself
- Open your browser’s developer tools (F12) and select the Network tab.
- Load your file and run the tool.
- The only requests you will see are the tool’s own code and, once cached, none at all.
Frequently asked questions
How much smaller, really?
For photographs, 25–35% against a JPG of the same visual quality is typical. For flat graphics with few colours, WebP can beat PNG by more than half. The tool shows the actual before and after for your files rather than a marketing figure.
Can I open a WebP everywhere?
In browsers, yes. Some older desktop applications and print workflows still do not accept it — if the file is going to a printer or a client, JPG remains the safer envelope.
Are the images uploaded to convert them?
No. The image is decoded by your browser, redrawn on a canvas and re-encoded there. Load the page, switch your connection off and the conversion still works — that is the proof.
Is there a size or batch limit?
None that we impose. Drop a hundred files if you like; they are processed one after another with a progress bar, and the ceiling is your device’s memory.
What happens to EXIF and GPS data?
It is dropped by default, which is usually what you want before sending a photo to anyone. Tick “Keep EXIF” if you need the capture date and camera preserved in a JPEG output.