Guides
A few notes that sit next to the tools. How a formula works, or why a file stays on your computer.
How to calculate BMI
The formula, healthy ranges, and what BMI can and cannot tell you.
How loan payments work
A plain-language look at principal, interest and monthly EMI.
How to paraphrase your own writing
Rewrite your own draft. Do not pass off someone else's words.
Keep files private in browser tools
Why local image and document tools avoid uploading your files.
How to convert kilograms to pounds
The exact factor, a worked example, and when rounding is enough.
What is a Unix timestamp
Epoch seconds, milliseconds, and how to read them.