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One inbox, read by a person. Bug reports and tool requests are both welcome.

Last updated 9 September 2026 Replies within 2 working days

Email us directly

toolqivo@gmail.com

Everything reaches the same place — bugs, tool requests, corrections and partnerships. We aim to reply within 2 working days.

Privacy and data requests: toolqivo@gmail.com. Copyright and legal notices: toolqivo@gmail.com.

Send a message

Your message is relayed to our inbox and nothing is stored on this site. See the privacy policy.

Reporting a bug

The more specific you can be, the faster it gets fixed. What helps most:

  • Which tool, and the exact URL.
  • What you did, what you expected, and what happened instead.
  • Your browser and operating system.
  • A sample input that reproduces it — as long as it contains nothing confidential.

Requesting a tool

Tell us the job you are trying to do rather than only the tool name. Knowing the underlying task usually leads to a better tool than the one originally asked for. Requests that can be done entirely in the browser get built first.

Something inaccurate?

If a calculator gives a result you believe is wrong, please send the inputs you used and the figure you expected. Correctness reports jump the queue — how they are handled is described in our editorial policy.

Accessibility problems

If something on the site cannot be reached with a keyboard or read by a screen reader, put "Accessibility" in the subject line. Those are treated as bugs, and our accessibility statement explains what we already know about.

Privacy, copyright and legal

Data protection requests go to toolqivo@gmail.com and are answered within 30 days. Copyright takedown notices have their own requirements — see the DMCA and copyright policy before sending one, so it can be acted on straight away.

Business and partnerships

Advertising, sponsorship and other commercial enquiries go to the same address — put "Partnership" in the subject line so it gets routed properly. What we will and will not accept is set out in the advertising disclosure.