Developer tools, fast and private
Everything runs in your browser. Your data never leaves your device.
- Password GeneratorGenerate strong, random passwords online with a cryptographically secure generator. Choose length and characters; nothing leaves your browser.
- Lorem Ipsum GeneratorFree Lorem Ipsum generator: create placeholder text as paragraphs, sentences or words, in plain text or HTML, ready to copy for your layouts.
- CPF Generator & ValidatorGenerate valid CPF numbers for testing and validate any CPF online with the official check digits. Free, fast and private, right in your browser.
- CNPJ Generator & ValidatorGenerate and validate CNPJ numbers online, including the new alphanumeric format. Official check-digit algorithm, free and private in your browser.
- Credit Card Generator & ValidatorGenerate Luhn-valid test credit card numbers and validate card numbers with brand detection (Visa, Mastercard, Amex, Elo). Free, private, for testing.
- Base64 Encode / DecodeEncode and decode Base64 for text and files online, privately in your browser. URL-safe support, size limits and safety checks for malicious files.