Free online tools
Use calculators, generators, validators, and simple utilities for everyday tasks. Sign in with Google only when you want to save financial simulations.
Available tools
Choose a tool family or open a popular option directly.
Calculators
Simulate financial, labor, and asset scenarios with detailed tools.
Generators
Create QR codes, passwords, and random numbers with simple settings.
Validators
Check documents and common inputs with public rules and instant results.
Math
Solve percentages, proportions, and common everyday calculations.
Dates
Count periods, date differences, and time intervals.
Text
Count, review, and transform text directly in the browser.
Colors
Create palettes, copy color codes, and prepare visual choices in the browser.
Developer
Format, validate, and transform technical data directly in the browser.
Calculators
Simulate financial, labor, and asset scenarios with detailed tools.
Brazil CLT Severance Calculator
Estimate Brazilian CLT severance pay, notice, vacation, 13th salary, FGTS and deductions with a transparent calculation memo.
Rescisao Without FGTS Calculator
Estimate a Brazilian CLT rescisao without FGTS fine or immediate FGTS withdrawal, focused on resignation and dismissal for cause.
Brazil Net Salary Calculator
Estimate Brazilian CLT net salary with INSS, IRRF, dependents, alimony, manual deductions, and a 2026 calculation memory.
Brazil Salary by Days Worked Calculator
Estimate proportional Brazilian salary by paid days in the month, with divisor 30 or calendar days, optional 2026 INSS/IRRF, and calculation memory.
Brazil Hourly Salary Calculator
Calculate a gross hourly value from monthly salary, divisor 220 or weekly hours, and estimate gross pay for worked hours.
Brazil PJ Salary Calculator
Estimate what remains from a Brazilian PJ contract with Simples Nacional, factor R, pro-labore, INSS, IRRF, accounting, and monthly costs.
Brazil IRPF Income Tax Calculator
Estimate Brazilian IRPF payable or refund with annual brackets, legal deductions, simplified discount, and tax already paid.
Brazil FGTS Calculator
Estimate monthly FGTS deposits, fine base, and 40% or 20% scenarios with a transparent calculation memory.
Brazil INSS Contribution Calculator
Estimate the Brazilian employee INSS contribution with the 2026 progressive table, contribution ceiling, and band-by-band memory.
Brazil Vacation Calculator
Estimate Brazilian CLT vacation with the constitutional one-third, abono pecuniario, INSS/IRRF deductions and a transparent calculation memo.
Brazilian 13th Salary Calculator
Estimate gross and net Brazilian 13th salary, proportional avos, first installment, advances, and INSS/IRRF deductions with 2026 tables.
Brazil Seguro-Desemprego Calculator
Estimate the monthly amount, number of payments, and total for Brazilian formal-worker seguro-desemprego using the 2026 MTE table and eligibility warnings.
Loan Calculator
Simulate your loan using SAC or PRICE systems. View the complete amortization schedule with all installments.
Vehicle Financing Simulator
Simulate car or motorcycle financing payments with Price or SAC, down payment, term, monthly rate, and optional costs.
Minha Casa Minha Vida Financing Simulator
Estimate income band, nominal rate, financed amount, and SAC or Price payments for Minha Casa Minha Vida using rules checked in 2026.
Consortium Calculator
Simulate your consortium installments with annual INCC/IPCA correction.
Loan vs Consortium
Compare loan and consortium side by side. See which option leaves more money in your pocket.
Rent vs Buy
Compare whether it's better to buy a financed property or rent and invest the difference.
Online Financial Calculator
Solve n, i, PV, PMT, FV, NPV, and IRR in an educational online financial calculator with shareable links and sign guidance.
IRR Calculator
Calculate the Internal Rate of Return of a series of cash flows.
Brazil CDB Calculator
Estimate gross and net return for a fixed-rate or CDI-linked Brazilian CDB, including regressive IR, IOF and transparent assumptions.
Compound Interest
Calculate the yield of your investments with compound interest over time.
Fixed Income Comparator
Compare fixed income investments (Fixed Rate, CDI, IPCA+, Selic) net of IR/IOF taxes and inflation.
Investment Calculator
Estimate how much an investment may grow, how much to contribute monthly for a target, or how long it may take to reach it.
Generators
Create QR codes, passwords, and random numbers with simple settings.
Password Generator
Create strong passwords with configurable length, letters, numbers, and symbols.
QR Code Generator
Create QR codes for links, text, Wi-Fi, and Pix in the browser.
UUID Generator
Generate UUIDv4 values in the browser, copy one or many identifiers, and choose hyphenated or compact formats.
Random Number Generator
Generate one or more random numbers within a defined range.
Random Name Picker
Paste a list of names and draw one or more winners in the browser without sending the list to the server.
Validators
Check documents and common inputs with public rules and instant results.
CPF Validator
Check whether a CPF has valid check digits.
CNPJ Validator
Check whether a CNPJ has valid check digits.
CPF and CNPJ Formatter
Format CPF and CNPJ with masks, remove punctuation, and copy the result in the browser without validating registration or checking Receita Federal.
Email Validator
Validate email syntax in the browser with clear warnings and no DNS, domain, or mailbox checks.
Credit Card Validator
Check locally whether a card number has a plausible format and valid Luhn check digit without sending or saving the number.
Math
Solve percentages, proportions, and common everyday calculations.
Dates
Count periods, date differences, and time intervals.
Text
Count, review, and transform text directly in the browser.
Character Counter
Count characters, words, lines, paragraphs, and bytes in the browser without sending text to the server.
Uppercase and Lowercase Converter
Convert text to uppercase, lowercase, sentence case, title case, and capitalization in the browser without sending text to the server.
Accent Remover
Remove accents and cedilla from text in the browser while preserving case, punctuation, and line breaks.
Slug Generator
Turn titles and text into clean URL slugs with hyphens, underscores, accent removal, and quick copying in the browser.
Text Compare
Compare two texts in the browser and see added, removed, and modified passages without sending content to the server.
Colors
Create palettes, copy color codes, and prepare visual choices in the browser.
Developer
Format, validate, and transform technical data directly in the browser.
JSON Formatter
Format, validate, and minify JSON in the browser without sending content to the server.
Base64 Converter
Encode and decode Base64 in the browser, with UTF-8 support, Base64URL, and privacy notices.
JWT Decoder
Decode JWT header and payload in the browser, inspect claims, dates, and security warnings without sending the token to the server.
Hash Generator
Generate SHA-256, SHA-512, SHA-1 and MD5 hashes for text in the browser without sending input to the server.
URL Encode Decode
Encode and decode URL components, URIs, and form values in the browser without sending content to the server.
Regex Tester
Test JavaScript regular expressions in the browser, see matches, groups, flags, and errors without sending text to the server.
How our tools work
Simple, fast, and free utilities for common tasks
Choose a tool
Open calculators, generators, validators, math, or dates depending on what you need.
Enter the data
Fill only the required values and see the result immediately.
Share the link
Copy a URL with the tool parameters when you want to repeat or send the scenario.
Why use Calculaderia?
100% Free
The tools are free, with no paid plans or artificial limits.
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Open source
Full transparency: see exactly how the calculations are made
Privacy
Calculations and validations run in your browser; favorites stay protected in your account.
Guides and articles
Learn essential financial concepts