Contact

Bug reports and requests for new tools are both welcome. So is being told that a converter gave you the wrong answer — that is the most useful message we can get.

Getting in touch

Email helponlinetools@gmail.com. This is a small operation, so a reply may take a few days.

Anything code-related can go straight to the issue tracker, which is usually the faster route.

Reporting a wrong result

If a tool produced something incorrect, the fastest fix comes from including three things: which tool, exactly what you put in, and what you expected instead. Most tools carry your input in the URL, so copying the address bar usually captures the first two at once.

Suggesting a tool

The tools here exist because they are the ones people look up over and over. If something you reach for is missing, say what you use it for — that context decides whether it gets built and how.

Privacy questions

What is and is not collected is set out in the privacy policy. The short version is that the tools run in your browser and your input never reaches us.