Generator tools for developers

Cryptographically secure UUIDs, Lorem Ipsum placeholder text, strong passwords, and QR codes — straight from your browser.

// 4tools in this category

uuid generator

v4, v7, nanoid, custom

lorem ipsumnew

paragraphs, sentences, words, lists

password generatornew

configurable length, charset, entropy score

qr codenew

generate svg and png qr codes in-browser

// about

Generator tools create structured output from nothing — or from a few parameters. Every generator here uses your browser's cryptographic random number generator (crypto.getRandomValues) for results that are both unpredictable and instant. From UUIDs that serve as unique identifiers in distributed systems to QR codes generated entirely in JavaScript without any external library.

// common use cases

Generate a batch of UUID v4s for a new database migration or seeding script
Create Lorem Ipsum paragraphs for a UI mockup or design prototype
Generate a strong password with specific length and character set requirements
Create a QR code linking to your website, vCard, or Wi-Fi credentials

// faq

Are generated UUIDs truly unique?

UUID v4 generates 122 bits of cryptographic randomness via the WebCrypto API. The probability of a collision in 1 billion generated UUIDs is approximately 1 in 10^18 — effectively zero for any practical use.

How secure are the generated passwords?

Passwords are generated using crypto.getRandomValues() — the same CSPRNG browsers use for TLS. The entropy score shows theoretical bits of randomness; 64+ bits is suitable for most accounts, 80+ for critical ones.

Can the QR code generator handle long URLs?

The generator supports versions 1–10, which handle up to 174 bytes at the lowest error correction level. For longer input, use a URL shortener first to keep the QR code scannable.