Tools
Jump straight into the most-used generators.
Brazilian Tools
(12)Brazilian Person Generator
Fake Brazilian people with CPF, RG, phone and address.
Brazilian Company Generator
Fake Brazilian companies with CNPJ and address.
CPF Generator
Generate valid-format, fictional CPF numbers.
CNPJ Generator
Generate valid-format, fictional CNPJ numbers.
Alphanumeric CNPJ Generator (2026)
Generate fictional CNPJs in Brazil's new 2026 alphanumeric format.
PIS/PASEP Generator
Generate valid-format, fictional PIS/PASEP numbers.
CNH Generator
Generate valid-format, fictional CNH numbers.
RG Generator (SSP-SP)
Generate valid-format São Paulo RG numbers.
Voter ID Generator
Generate valid-format voter registrations.
RENAVAM Generator
Generate valid-format RENAVAM numbers.
Inscrição Estadual Generator
Generate a valid-format state tax registration per UF.
Brazilian Checkout Payload
Full BR checkout payload: customer, billing, shipping, cart.
Validators
(9)CPF Validator
Check whether a CPF has valid check digits.
CNPJ Validator
Validate numeric and 2026 alphanumeric CNPJs.
Credit Card Validator
Check a card number with the Luhn algorithm.
PIS/PASEP Validator
Check a PIS/PASEP check digit locally.
CNH Validator
Validate a CNH registration number.
RG Validator (SSP-SP)
Validate a São Paulo RG check digit.
Voter ID Validator
Validate a Brazilian voter registration.
RENAVAM Validator
Validate a RENAVAM check digit.
Inscrição Estadual Validator
Validate a state tax registration for any UF.
US & Global Tools
(3)Commerce & Mock Data
(6)Product Generator
Fake products with SKU, price, stock and category.
Ecommerce Order Generator
Fake orders with items, totals, taxes and status.
Credit Card Generator
Generate Luhn-valid test card numbers by brand.
Cart Generator
Fake shopping carts with line items.
Invoice Mock Generator
Fake invoices with line items and totals.
Subscription Mock Generator
Fake subscriptions with plan and billing cycle.
Dev Utilities
(9)UUID Generator
Generate UUID v4 identifiers in bulk.
JSON Formatter
Pretty-print or minify JSON instantly.
JWT Decoder
Decode JWT header and payload locally.
Timestamp Converter
Convert between Unix time and ISO dates.
Base64 Encode / Decode
Encode and decode Base64 text.
Slug Generator
Turn text into URL-safe slugs.
URL Encode / Decode
Percent-encode and decode URLs.
JSON to TypeScript
Turn JSON into a TypeScript interface.
JSON to Zod
Turn JSON into a Zod schema.
AI Tools
(6)Mock from JSON Schema
Generate mock data that matches a JSON Schema.
Prompt Builder
Compose structured prompts from parts.
JSON Schema Generator
Infer a JSON Schema from a sample.
RAG Chunk Helper
Split text into overlapping chunks.
Token Counter
Estimate token counts for prompts.
Mock LLM Response
Fake chat-completion responses for tests.