33 free tools — no signup, no paywalls
Analyze your data in seconds — no Excel, no Python
Calculators and data tools for analysts, founders, and finance professionals. Drop a file, enter a number, get the answer.
Finance Calculators
Free tools for home buyers, investors, and debt planners. No signup required.
Rent vs Buy Calculator
Compare 10-year wealth, break-even point, and monthly costs for renting vs buying. Supports UK, US, Canada, Australia and more.
Investment Growth & Inflation Calculator
See how your investments grow in real terms after inflation. Nominal vs real value, purchasing power chart, year-by-year breakdown.
Debt Avalanche vs Snowball Calculator
Enter all your debts and compare avalanche vs snowball payoff strategies. See interest saved, payoff timeline, and debt-free date.
Compound Interest Calculator
See how your investment grows over time with compound interest. Year-by-year breakdown.
Data Tools for Teams
Dashboard design, data quality, and visualization tools for professionals.
Dashboard Design System
Build dashboard wireframes with KPI templates for executives, managers, and analysts. Drag chart blocks, add real data, export as PNG. For product teams and BI developers.
Data Visualization Guide
Master data storytelling. Learn the 4 data relationships, chart selection framework, accessibility principles, and when to use Excel vs Tableau vs Python. Interactive recommender tool included.
Data Quality Framework
Standardize your data quality process. Learn the 6 dimensions of data quality (accuracy, completeness, consistency, timeliness, validity, uniqueness), source-specific validation, ETL pipeline checks, and GDPR compliance. Reduce cleaning time from 80% to 20%.
Data Governance Tool
Build audit-ready data governance. Auto-generate data dictionaries with schema, data types, sample values, and compliance metadata. Master GDPR Article 30, SOC 2, and ISO 27001 requirements. For data teams and compliance officers.
More Free Tools
21 additional calculatorsGuides & Articles
View allDeep-dive guides and walkthroughs to help you make better financial decisions. Learn the math, formulas, and real-world considerations behind every calculator.
Rent vs Buy Calculator Guide
Complete breakdown of all costs, formulas, and decision factors. See real examples from UK, US, Canada, and Australia.
Debt Payoff Strategies
Compare avalanche vs snowball with real examples, motivation tradeoffs, and UK-specific payoff considerations.
Investment Growth & Inflation
Learn real vs nominal returns, how inflation destroys purchasing power, and why investment horizon matters.
Investment Returns After Inflation
See why nominal returns mislead and how to calculate the real return on investment after inflation properly.
The 5% Rule for Rent vs Buy
A fast rent vs buy screening rule, plus UK-specific adjustments and the cases where the shortcut fails.
Hidden Costs of Buying a House UK
The extra costs buyers miss: stamp duty, surveys, legal fees, moving, repairs, and first-year ownership cash flow.
How Much House Can I Afford?
A realistic UK affordability guide covering lender limits, debt ratios, rate stress tests, and lifestyle budgeting.
Compound Interest Examples UK
Real examples showing how time, tax wrappers, fees, and delayed starts change long-term investing outcomes.
Take Home Pay Calculator UK
Understand salary after tax, NI, student loans, pensions, and salary sacrifice with practical UK examples.
VAT for Small Business
Learn when to register for VAT, when flat rate helps, and where small businesses lose money through filing mistakes.
Break-Even Analysis Example
Coffee shop, SaaS, and consultant examples showing how to calculate break-even point and margin of safety.
ROI Calculation Example
Property, stock, business, and side-hustle ROI examples with annualized return and payback thinking.
Dashboard Design System
Build effective data dashboards with KPI templates, layouts for executives and analysts, and anti-patterns to avoid.
Data Visualization Guide
Master data storytelling. Learn the 4 data relationships, chart selection framework, and when to use Excel vs Tableau vs Python.
Data Quality Framework
Standardize data quality. Learn the 6 dimensions, source-specific validation, ETL pipeline checks, and compliance for analytics teams.
Data Governance Tool
Master data governance, GDPR compliance, data catalogs, and audit-ready documentation. For compliance officers and data teams.