All tools
Password Generator
Create strong passwords with custom length and character sets.
QR Code Generator
Turn links, text and contacts into a downloadable QR code.
CPF and CNPJ
Validate or generate formatted Brazilian CPF and CNPJ numbers for testing.
Date Calculator
Difference between dates, exact age and adding business or calendar days.
Stopwatch and Timer
Track time with a lap stopwatch or a countdown timer.
Bill Splitter
Split the bill between people including tip and rounding.
Unit Converter
Length, mass, volume, area and speed in a single place.
Temperature Converter
Celsius, Fahrenheit and Kelvin converted simultaneously.
Color Converter
HEX, RGB and HSL with color preview and quick copy.
Base Converter
Numbers in binary, octal, decimal and hexadecimal.
Percentage
Four percentage calculations: value, share, increase and discount.
Rule of Three
Direct or inverse proportion solved with the full steps.
Compound Interest
Project an investment with monthly contributions and an interest rate.
BMI Calculator
Body mass index with classification range.
Selling Price
Set the ideal price from cost, margin or markup, taxes and commissions.
Break-even Point
How many units to sell to cover fixed and variable costs.
Simple Payback
Investment recovery time, with a discounted version over time.
NPV and IRR
Net present value and internal rate of return of a cash flow.
Price and SAC Loans
Simulate installments, interest and outstanding balance in Price and SAC systems.
Loan Comparator
Compare up to 4 scenarios of rate, term and down payment side by side with a balance chart.
Opportunity Cost
How much you give up by choosing one investment over another.
Equivalent Rate
Convert daily, monthly, semiannual and annual rates via compound interest.
Text Counter
Words, characters, sentences, paragraphs and reading time.
Case Converter
UPPERCASE, lowercase, Title, snake_case, kebab and camelCase.
Clean Text
Remove accents, extra spaces, empty lines and duplicates.
Lorem Ipsum
Generate placeholder paragraphs, sentences or words.
JSON Formatter
Validate, indent or minify JSON with clear error messages.
Base64
Encode and decode text in Base64 both ways.
URL Encoder
Encode and decode URLs and query parameters.
UUID Generator
Generate UUID v4 identifiers in batches to copy.
Hash Generator
SHA-1, SHA-256 and SHA-512 hashes computed in the browser.
Browse by category
Everyday
Utilities for daily tasks: passwords, QR codes, documents, dates and time tracking.
6 tools
Converters
Convert units, temperatures and colors between formats with instant precision.
4 tools
Finance
Selling price, payback, IRR and NPV, Price and SAC loans, scenario comparison, opportunity cost and equivalent rates.
8 tools
Math
Percentages, rule of three, compound interest and BMI calculated instantly.
4 tools
Text
Analyze, transform and generate text: counting, casing, accents and Lorem Ipsum.
4 tools
Development
JSON, Base64, URL, UUID, hash and number bases for technical work.
5 tools