Generate UUIDs, fake data, test cards, and random numbers.
4 free tools — 100% client-side, no uploads
Generate universally unique identifiers (UUIDs) instantly.
Generate secure random numbers within a custom range.
Generate mock user data for database seeding and testing.
Generate dummy credit card numbers for testing checkouts.
Generate UUIDs, fake data, test cards, and random numbers. All tools run entirely in your browser using client-side JavaScript. Your data never leaves your device — no server uploads, no tracking, no accounts required. Bookmark this page to access all 4 tools instantly.