Free Online Generator Tools
Tools for generating various types of data
Generate the test data, identifiers, and assets you need for building and QA. These free generators produce version 4 UUIDs, cryptographically strong passwords and passphrases, MD5/SHA hashes, lorem ipsum placeholder text, structured fake datasets, Luhn-valid test card numbers, and scannable QR codes — all in your browser, with no sign-up.
UUID Generator
Generate random UUIDs and ULIDs
Password Generator
Generate secure random passwords and passphrases
Lorem Ipsum Generator
Generate lorem ipsum placeholder text
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text
Test Credit Card Generator
Generate Luhn-valid fake credit card numbers for software testing
Test Data Generator
Generate structured test data in JSON, CSV, or SQL format
QR Code Generator
Generate a QR code from a URL or text
HMAC Generator
Compute keyed HMAC digests (SHA-1, SHA-256, SHA-384, SHA-512) from a message and secret key