About Widgety

Last updated: 2026-02-01

What this site is

Widgety is a library of small, fast micro-tools (calculators/checkers/generators) that run instantly in your browser and can be embedded on other sites.

Accuracy first

Every tool is defined by a structured spec (inputs, outputs, assumptions, disclaimers) and ships with golden + edge test vectors. When a tool supports unit conversion, inputs are normalized to base units before computing and then converted back for display.

Privacy by design

Most calculations happen locally in your browser. We only collect data when you submit a form (for example: reporting an issue or suggesting a tool). See our Privacy Policy.

Contact

Use the contact form for general questions, or report an issue on a specific tool.