Tools purely for
utility.
PureTools was built on a simple premise: use a calculator without trading your privacy.
Our Mission
Finding simple tools online has become difficult. Search results are often filled with intrusive ads, pop-ups, and trackers.
We created PureTools to provide a better alternative. Our goal is to offer fast, clean, and accurate calculators that just work. No clutter, no distractions.
Accuracy & Methodology
A calculator is only useful if it is correct. We rigorously test every tool on our site:
Scientific Standards
Our health tools use validated medical formulas. For example, our BMR calculator uses the Mifflin-St Jeor equation, widely considered the most accurate standard.
Financial Rigor
Our finance calculators follow standard accounting principles for amortization and compounding to ensure your results match real-world bank figures.
We believe in transparency. Whenever possible, we explain the formula used directly on the page so you can understand how the result was calculated.
Privacy First
Most web calculators send your data to a remote server. When you enter your salary or weight, that information leaves your device.
PureTools is different. We use client-side technology for nearly all our tools. Calculations happen directly in your web browser. Your data typically never interacts with our servers.
- No user accounts or sign-ups required.
- No persistent storage of personal inputs.
- No selling of user data.
Editorial Standards
Our content is written and reviewed by humans, not AI farms. We aim to update our guides to reflect new scientific findings or economic changes. If you spot an error, please let us know.
About the Team
PureTools is maintained by a small group of developers who believe essential internet utilities should be free and accessible. We are supported by non-intrusive advertising, which covers our server costs and keeps this site free for everyone.