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About AumnI tools

AumnI tools is a free collection of calculators, converters, generators, trackers and small games, grouped into eight categories from finance and health to developer tools. There is no account to create: open a tool and use it.

Most tools do all their work in your browser, so what you type stays on your device. The few that contact another site say so on their page, along with what they send: the QR Code Designer, for example, puts the text you encode in an image request to a QR service. Every tool page explains the method the code uses, works through an example with real numbers and lists what the tool does not do, including tools whose results are simulated.