Contact us
Found a bug, spotted a wrong result or have an idea for a new tool? We would like to hear from you.
We read every message and reply to questions about the site as soon as we can.
Reporting a problem
To help us fix an issue quickly, please include:
- the address of the page where it happened
- what you entered and what result you expected
- your browser and device, for example Chrome on Android
Please do not send us private documents. Our tools never need your files to be emailed, because everything runs in your browser.