About Us

No1 Tools (tools-no1.com) is a free collection of online tools run by a small independent team. It serves students, professionals, developers, households and online creators by turning repetitive everyday tasks into web apps that open and work instantly.

What we build

The site offers four groups of tools — Text & Developer, Calculators & Converters, Life & Money, and Generators & Utilities — including a word counter, JSON formatter, Base64 encoder, calculator, unit converter, BMI, loan and compound-interest calculators, discount calculator, password generator, and image compression and conversion, with more added on an ongoing basis.

Our principles

• No install and no sign-up: it works in the browser and takes no storage;
• Local-first: most calculations and processing happen in your browser, so text and images are not uploaded;
• Cross-device: fully responsive for phones, tablets and desktops;
• Core features stay free forever.

Accuracy

Calculation tools state their formula and assumptions clearly so results can be double-checked. If you spot an error or an inconsistency, please tell us via the Contact page and we will review and correct it promptly.

How we stay running

To keep the core tools free, some pages may show third-party advertising (for example Google AdSense) and may include relevant affiliate (CPS) recommendation links. If you buy through those links we may earn ad revenue or a commission, at no extra cost to you and without affecting the objective results of any tool. See our Privacy Policy for details.

Contact

For tool suggestions, bug reports, business enquiries or content corrections, please visit the Contact page.