Analyze your data in seconds โ no Excel, no Python
Free calculators and data tools built for analysts, founders, and finance professionals. Drop a file, enter a number, get the answer.
๐Data Analysis Tools
View allCSV Cleaner
Upload a CSV and remove duplicates, blank rows, and whitespace. Download cleaned file.
JSON to CSV Converter
Paste JSON and instantly convert to CSV. Handles nested objects and arrays.
CSV to JSON Converter
Paste CSV data and instantly convert to a clean JSON array. Handles headers automatically.
Remove Duplicate Lines
Paste any text and instantly remove duplicate lines. Case-sensitive or insensitive.
๐ฐFinance Tools
Salary Calculator
Convert between annual, monthly, weekly, and hourly salary. Instant breakdown.
Compound Interest Calculator
See how your investment grows over time with compound interest. Year-by-year breakdown.
Profit Margin Calculator
Calculate gross, net, and operating profit margin. Includes markup vs margin explanation.
Break-Even Calculator
Find the exact units or revenue needed to cover your costs. With break-even chart.
VAT Calculator
Add or remove VAT from any price. Supports custom rates and all major country rates.
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.
๐ขBusiness Tools
๐งฎMath Tools
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Random Number Generator
Generate random numbers in any range. Single number, list, or unique set โ no repeats.
Standard Deviation Calculator
Paste a list of numbers and get mean, median, mode, variance, and standard deviation instantly.
Correlation Calculator
Enter two sets of numbers and calculate Pearson correlation coefficient with interpretation.
Sample Size Calculator
Calculate the required sample size for any survey or experiment. Set confidence level and margin of error.
Mean, Median & Mode Calculator
Enter a list of numbers and calculate mean, median, mode, range, and sum instantly.
๐Guides & 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
Understand avalanche vs snowball methods, interest calculations, and how to become debt-free faster.
Investment Growth & Inflation
Learn real vs nominal returns, how inflation destroys purchasing power, and why investment horizon matters.
The 5% Rule for Rent vs Buy
A simple mental math test to know immediately if buying makes financial sense in your market. Quick screening tool.
How Inflation Destroys Investment Returns
Understand real vs nominal returns. Your 8% returns are only 5% after inflation. Protect your wealth.