Contact Us
We read every message. For questions about a tool, a correction to a formula, a suggestion for a new calculator, or business inquiries, email us at:
Before you write
Your data: Tools Hub tools run in your browser and we never receive the numbers, text or images you use with them, so we cannot recover anything you entered — if a result looked wrong, please tell us which tool you used and what values you entered (without anything private) so we can reproduce it.
Corrections: If you spot a formula or example that looks off, send us the tool name and the values you tried. Accuracy is the whole point of this site and we fix verified issues quickly.
New tool ideas: Tell us the calculation or utility you wish existed. The most requested ideas are built first.
Company
Tools Hub is a product of UMARIX TECHNOLOGIES (SMC-PRIVATE) LIMITED, a software company building web products, business systems and free online tools.
We aim to reply within two business days.