Generators
Generate random values, UUIDs, passwords, and more. — 16 tools available.
Generator tools create random or algorithmically derived values on demand. UUIDs are the industry-standard identifier for databases, microservices, and distributed systems — UUID v4 uses 122 bits of cryptographic randomness, making collisions astronomically unlikely. The Password Generator creates strong, configurable passwords using the Web Crypto API, while the Password Strength Checker uses Dropbox's zxcvbn algorithm to evaluate how long a password would take to crack under realistic attack scenarios. Random number generators and dice rollers serve games, simulations, statistical sampling, and lottery-style picks. Nickname generators produce unique usernames for games, communities, and test accounts. Lorem Ipsum generators create placeholder text for design mockups and wireframes. All generators on UtilDaily that require security-grade randomness use the browser's Web Crypto API (crypto.getRandomValues()) — the same entropy source used by TLS and SSH. No seed values, passwords, or generated outputs are ever transmitted to a server.
16 Generators Tools
UUID v4 Generator
Generate random UUIDs (v4) in bulk with one click.
Random Wheel Spinner
Spin the wheel to pick random winners from your list. Three modes, CSV import, history tracking.
Random Number & Dice
Generate random numbers, flip a coin, or roll dice — all in one place.
Random List Picker
Paste a list of items and pick random winners instantly. Perfect for raffles and giveaways.
Nickname Generator
Generate random nicknames, gamer tags, and fantasy names instantly.
Favicon Generator
Create favicons from images, text, or emoji. Generate multiple sizes with live preview.
Word Cloud Generator
Generate beautiful word clouds from text with customizable colors, sizes, and layouts.
QR Code Generator
Generate QR codes from URLs, text, or email. Download as PNG.
Password Generator
Generate secure passwords with crypto.getRandomValues(). Length slider, character sets, entropy strength meter.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences, or words.
Password Strength Checker
Check how strong your password is with realistic crack-time estimates and improvement suggestions.
Random String Generator
Generate random strings with custom length and character sets.
Barcode Generator
Generate Code 128 barcodes from any text and download as SVG. No sign-up required.
Random Number Generator
Generate cryptographically random numbers in any range — dice, lottery, statistics, or any custom min/max.
Random Word Generator
Generate random English words filtered by type (noun/verb/adjective/adverb), length, and starting letter.
Username Generator
Generate creative usernames for gaming, social media, or professional profiles in 5 styles.
Frequently Asked Questions
Are the generated values truly random?
Tools that require cryptographic randomness (UUIDs, passwords) use the browser's Web Crypto API (crypto.getRandomValues()), which provides cryptographically secure pseudo-random numbers sourced from the operating system's entropy pool. This is the same randomness source used by TLS, SSH, and other security-critical applications. Tools for casual use (dice rollers, name generators) may use Math.random(), which is sufficient for non-security purposes.
What is a UUID and why should I use one?
A UUID (Universally Unique Identifier) is a 128-bit identifier standardized in RFC 4122. UUIDs can be generated independently on any machine without coordination, making them ideal for distributed systems, database primary keys, API resource IDs, and session tokens. UUID v4 (random) is the most common version — the probability of collision is astronomically low.
How long should a generated password be?
NIST recommends a minimum of 8 characters, but modern guidance suggests at least 12-16 characters for strong security. Longer passwords with a mix of uppercase, lowercase, digits, and symbols are exponentially harder to crack. A 16-character random password with mixed character types would take billions of years to brute-force with current hardware.