Finance Tools
7 free finance utilities. No signup, no ads, instant results.
VAT Calculator
Calculate VAT and GST for 40+ countries. Standard and reduced rates, reverse VAT extraction, full breakdowns.
Invoice Generator
Create professional PDF invoices instantly. No watermarks, no signup, supports VAT/GST and multiple currencies.
Tip Calculator
Calculate tips and split bills instantly. Tipping customs for 20+ countries, service presets, and per-person amounts.
Mortgage Calculator
Monthly payments, total interest, and full amortisation schedule. Repayment and interest-only mortgages. 15 currencies.
Salary Calculator
Calculate take-home pay after tax. Full UK PAYE 2024/25 and US Federal 2024 with complete deductions breakdown.
Compound Interest Calculator
Calculate how your investment grows with compounding. Add monthly contributions and see year-by-year balance breakdown.
Credit Card Rewards Optimiser
Enter your monthly spend and see which card earns you the most. Compares 10 top cards — Chase, Amex, Capital One. Shows the exact dollar gap you're missing.
Professional Utilities: Instant, Free, and Secure
ToolStack was built to eliminate the friction from everyday digital workflows. We provide a comprehensive suite of professional utilities designed to save you time, reduce errors, and improve the quality of your output. We firmly believe that essential tools should be freely accessible, which is why we never hide features behind paywalls or demand account registrations.
Every tool in this category has been rigorously engineered to prioritize speed and privacy. Where possible, logic is executed entirely on your local device—meaning your data remains yours. For our AI-assisted features, we utilize enterprise-grade APIs to ensure maximum accuracy and reliability. Explore the tools above to streamline your daily tasks.