Support & Frequently Asked Questions

Yes! All 1,000+ tools on ToolMasteryHub are completely free to use with no hidden costs. We don't require registration or accounts, and there are no premium versions or upsells.

Our tools are designed to provide professional-grade accuracy. Financial calculators use standard formulas, unit converters use precise conversion factors, and all tools undergo regular testing. However, for critical decisions, we recommend consulting with a professional as results are provided "as-is" without warranty.

If a tool isn't working as expected, try these steps:

1. Refresh the page
2. Check your internet connection
3. Clear your browser cache
4. Try a different browser
5. Ensure you've entered valid inputs

If the issue persists, please contact our support team with details about the problem.

Yes! All our tools are fully responsive and work on smartphones, tablets, and desktop computers. We optimize our tools for touch interactions on mobile devices.

No. All calculations are performed in your browser, and we don't store your input data on our servers. For tools that require server-side processing (like some AI tools), we only process the data temporarily to generate your result and don't store it permanently.

For more details, please see our Privacy Policy.