FAQ

Last updated: 2026-02-01

Are the results accurate?

We focus on correctness: every tool has strict input validation and ships with golden + edge examples that are executed in automated tests. That said, results can be wrong if inputs are wrong—always verify critical numbers for real-world decisions.

Do calculations run on the server?

Most tools run entirely in your browser. We don’t upload your inputs to compute outputs. The only time we store data is when you submit a form (reporting an issue, suggesting a tool, or contacting us).

Can I embed a tool on my site?

Yes. Every tool page includes an embed snippet. The embed automatically resizes to fit its content.

Do you show ads?

We may show ads to support hosting and development. When enabled, we publish ads.txt and follow AdSense policies. See Ads for more.

How do I request a new tool?

Use Suggest a tool. The best requests include inputs, outputs, assumptions, and a couple of test examples.