Simple, useful web tools.
We build fast, mobile-first web tools that do one thing well - free, no sign-ups, no clutter.
Our tools
UK Take-Home Pay Calculator
Work out your net pay after Income Tax, National Insurance, pension, student loan, pro-rata and statutory pay - for 2025/26 and 2026/27.
UK Stamp Duty Calculator
Work out SDLT (England & NI), LBTT (Scotland) and LTT (Wales) - including first-time buyer relief and the second-home surcharge.
Tip & Bill Splitter
Add a tip, split a bill between any number of people, and round up per person so everyone pays a whole pound.
Mortgage Calculator
Monthly repayments, total interest and loan-to-value, repayment vs interest-only, and how overpaying clears your mortgage years early.