Free online tools

Check length and obvious patterns with a limited local password-strength indicator.

Estimate unpaid stipend and the cash equivalent of remaining internship recess under the applicable Brazilian internship rules.

Estimate Brazilian CLT severance pay, notice, vacation, 13th salary, FGTS and deductions with a transparent calculation memo.

Estimate a Brazilian CLT rescisao without FGTS fine or immediate FGTS withdrawal, focused on resignation and dismissal for cause.

Estimate Brazilian CLT net salary with INSS, IRRF, dependents, alimony, manual deductions, and a 2026 calculation memory.

Estimate Brazilian monthly INSS and IRRF payroll deductions with 2026 tables, bases, bands, and calculation memory.

Estimate proportional Brazilian salary by paid days in the month, with divisor 30 or calendar days, optional 2026 INSS/IRRF, and calculation memory.

Estimate the gross RGPS maternity benefit by category, with calculation basis and standard-period projection.

Calculate a gross hourly value from monthly salary, divisor 220 or weekly hours, and estimate gross pay for worked hours.

Estimate what remains from a Brazilian PJ contract with Simples Nacional, factor R, pro-labore, INSS, IRRF, accounting, and monthly costs.

Estimate Brazilian IRPF payable or refund with annual brackets, legal deductions, simplified discount, and tax already paid.

Check ordinary urban age-retirement requirements and a conditional benefit estimate using 2026 values.

Estimate late-payment penalty, Selic interest, and total for a Brazilian INSS/GPS contribution from a user-supplied original amount.

Simulate charges on one overdue Brazilian FGTS deposit using explicit correction and period assumptions.

Estimate monthly FGTS deposits, fine base, and 40% or 20% scenarios with a transparent calculation memory.

Estimate the Brazilian employee INSS contribution with the 2026 progressive table, contribution ceiling, and band-by-band memory.

Estimate Brazilian CLT vacation with the constitutional one-third, abono pecuniario, INSS/IRRF deductions and a transparent calculation memo.

Estimate gross and net Brazilian 13th salary, proportional avos, first installment, advances, and INSS/IRRF deductions with 2026 tables.

Estimate the monthly amount, number of payments, and total for Brazilian formal-worker seguro-desemprego using the 2026 MTE table and eligibility warnings.

Simulate your loan using SAC or PRICE systems. View the complete amortization schedule with all installments.

Estimate annual Brazilian vehicle tax using your taxable value and rate, with an upfront discount and illustrative installments.

Estimate the monthly payment, interest and total repayment of a fixed-payment loan.

Simulate car or motorcycle financing payments with Price or SAC, down payment, term, monthly rate, and optional costs.

Estimate income band, nominal rate, financed amount, and SAC or Price payments for Minha Casa Minha Vida using rules checked in 2026.

Simulate your consortium installments with annual INCC/IPCA correction.

Compare loan and consortium side by side. See which option leaves more money in your pocket.

Compare whether it's better to buy a financed property or rent and invest the difference.

Compare financing a home now with renting, saving, and investing until you can pay the cash price.

Enter a BRL purchase amount and month to correct it with official Brazilian IGP-M data through the latest available month. This is not a market appraisal.

Solve n, i, PV, PMT, FV, NPV, and IRR in an educational online financial calculator with shareable links and sign guidance.

Calculate the Internal Rate of Return of a series of cash flows.

Estimate gross and net return for a fixed-rate or CDI-linked Brazilian CDB, including regressive IR, IOF and transparent assumptions.

Estimate a Brazilian CDI-linked investment at 100%, 110%, or another CDI percentage with an official Central Bank snapshot, IR, IOF, and transparent assumptions.

Calculate the yield of your investments with compound interest over time.

Compare fixed income investments (Fixed Rate, CDI, IPCA+, Selic) net of IR/IOF taxes and inflation.

Estimate how much an investment may grow, how much to contribute monthly for a target, or how long it may take to reach it.

Create strong passwords with configurable length, letters, numbers, and symbols.

Generate random tokens in the browser with Web Crypto, choose bytes and format, and copy only when you decide to.

Create QR codes for links, text, Wi-Fi, and Pix in the browser.

Create a WhatsApp link with a phone number and optional message in your browser. Copy the result without saving your data in Calculaderia.

Generate sample names, choose the quantity, and copy the list for tests, stories, and prototypes.

Generate Lorem Ipsum by words, sentences, or paragraphs and copy it into your layouts.

Generate numeric or alphanumeric examples with check digits to test systems in your browser.

Generate Brazilian CPF strings with consistent check digits for isolated software tests, with or without punctuation.

Generate UUIDv4 values in the browser, copy one or many identifiers, and choose hyphenated or compact formats.

Generate one or more random numbers within a defined range.

Paste a list of names and draw one or more winners in the browser without sending the list to the server.

Check whether a CPF has valid check digits.

Check whether a CNPJ has valid check digits.

Format CPF and CNPJ with masks, remove punctuation, and copy the result in the browser without validating registration or checking Receita Federal.

Check PIS, PASEP, NIS, or NIT check digits locally in the browser without querying official Brazilian systems.

Check Brazilian IE format and check digits by state in your browser. See rule coverage without looking up registration status.

Check the format and check digit of Brazil's vehicle registration identifier locally, without an official lookup.

Check the structure and check digits of a Brazilian CNH national registration number using compared public conventions, without an official lookup.

Check in the browser whether a Brazilian voter registration number has a compatible UF code and check digits, without querying electoral status.

Validate email syntax in the browser with clear warnings and no DNS, domain, or mailbox checks.

Validate and format phone numbers in the browser, with Brazil and E.164 modes, without carrier or WhatsApp lookup or saved data.

Check the format of a Brazilian CEP, copy 00000-000, and see clear warnings without external database lookup.

Check the format and check digits of Brazilian boleto payment lines and numeric barcodes in your browser. This does not confirm authenticity.

Check locally whether a card number has a plausible format and valid Luhn check digit without sending or saving the number.

Check locally whether a Brazilian plate matches the Mercosul/PIV or old format, with conversion notes and no official lookup.

Calculate percentages, increases, discounts, and changes quickly.

Solve direct proportions with a simple rule-of-three calculator.

Count days between two dates and see the difference in weeks and approximate months.

Convert Unix timestamp to date and date to timestamp, with UTC, local time, seconds, and milliseconds.

Count characters, words, lines, paragraphs, and bytes in the browser without sending text to the server.

Convert text to uppercase, lowercase, sentence case, title case, and capitalization in the browser without sending text to the server.

Remove accents and cedilla from text in the browser while preserving case, punctuation, and line breaks.

Turn titles and text into clean URL slugs with hyphens, underscores, accent removal, and quick copying in the browser.

Compare two texts in the browser and see added, removed, and modified passages without sending content to the server.

Create color palettes from a base color, then copy HEX, RGB, HSL, and CSS variables directly in the browser.

Format, validate, and minify JSON in the browser without sending content to the server.

Convert CSV to JSON and JSON to CSV in the browser with delimiter, headers, preview, and privacy controls.

Encode and decode Base64 in the browser, with UTF-8 support, Base64URL, and privacy notices.

Decode JWT header and payload in the browser, inspect claims, dates, and security warnings without sending the token to the server.

Generate SHA-256, SHA-512, SHA-1 and MD5 hashes for text in the browser without sending input to the server.

Encode and decode URL components, URIs, and form values in the browser without sending content to the server.

Test JavaScript regular expressions in the browser, see matches, groups, flags, and errors without sending text to the server.