About Wraplet
Wraplet is a free, ad-supported collection of 47+ online tools and calculators covering finance, health, school, writing, dates, and code. It was built to answer a simple frustration: most free calculator sites are slow, cluttered, and quietly send your input to a server you never agreed to.
How Wraplet works
Every calculator and tool on Wraplet runs entirely as JavaScript in your browser. There is no backend call that processes what you type — your numbers, dates, text, and files stay on your device. See our Privacy Policy for the full detail on what, if anything, is collected.
What guides the tools we build
- No account or sign-up required for any tool.
- No paywalls or watermarked results.
- Formulas and methods are shown on the page, not hidden behind a black-box result.
- New tools and improvements ship regularly based on user requests.
Accuracy
Wraplet's calculators are built for quick, everyday estimates — finance, health, and academic calculators state their formula and assumptions on the page, but they are not a substitute for advice from a financial advisor, medical professional, or academic institution.
Get in touch
Found a bug, have a tool request, or want to report an inaccurate result? Visit the Contact page — every message is read.