Developer Generators

Generate unique identifiers, secure passwords, and test data. All generators run in your browser with cryptographic security.

UUID/GUID Generator

Generate all UUID versions (v1-v7) and Microsoft GUIDs. Perfect for databases and distributed systems.

UUID v4 UUID v7 GUID
All versions

ULID Generator

Create lexicographically sortable identifiers. More compact than UUID and naturally time-ordered.

Time-sortable 26 chars
Crockford's Base32

MongoDB ObjectID

Generate and decode ObjectIDs for MongoDB. Extract document creation timestamps.

MongoDB 12 bytes
With decoder

Password Generator

Create cryptographically secure passwords. Customizable length and character sets.

Secure Customizable
Web Crypto API

Hash Generator

Calculate MD5, SHA1, SHA256, SHA512 hashes. For checksums and integrity verification.

MD5 SHA256 SHA512
All algorithms

Lorem Ipsum Generator

Generate placeholder text for design and development. Words, sentences, or paragraphs.

Words Sentences Paragraphs
Customizable

Professional Generators for Developers

Rich Dev Tools provides a complete set of generators that every developer needs. All tools run entirely in your browser using cryptographically secure algorithms, ensuring the privacy and security of your data.

Why Use Identifier Generators?

Unique identifiers are the foundation of modern distributed systems. They're used as:

  • Database primary keys — UUID and ULID are perfect for distributed databases where auto-increment isn't possible
  • API resource identifiers — secure, unpredictable IDs for public APIs
  • Session and authorization tokens — cryptographically random values for security
  • Event and log identifiers — sortable ULIDs for monitoring systems

Which Identifier Should You Choose?

The choice depends on your requirements:

  • UUID v4 — universal choice for most tasks
  • UUID v7 or ULID — when time-based sorting matters
  • MongoDB ObjectID — specifically for MongoDB

Generator Security

All our generators use the browser's Web Crypto API — the same cryptographically secure random number generator used for TLS/SSL. No data is sent to servers — everything runs locally in your browser.

Quick Links

Benefits

  • 100% browser-based
  • Cryptographically secure
  • No registration
  • Free

Common Questions

They create things like UUIDs, passwords, and hashes — stuff you need for database IDs, API tokens, or test data. All generated client-side using your browser's crypto APIs.

Absolutely. Everything runs in your browser with cryptographically secure randomness. Nothing hits our servers — check the network tab if you're skeptical.

UUID v4 works for most cases. Need time-sorted IDs? Go with ULID or UUID v7. Building on MongoDB? Stick with ObjectID. There's no universal "best" — it depends on your stack.

Yep, up to 100 at once. Useful for seeding test databases or preparing batch inserts.