The fastest way to reach us is by email. We read everything, and we reply to anything that needs a reply.
Especially useful to report
- A tool returning an incorrect result — please include the exact inputs you used.
- Anything broken on a specific browser or device, with the name and version.
- A missing option or unit that would make a tool genuinely more useful.
- A tool you keep searching for and cannot find a decent version of.
Response time
This is a small operation, so expect a few business days. Bug reports that include steps to reproduce get handled first, because they are the ones we can act on immediately.