GeneratorsUUID Generator

UUID Generator

Generate RFC-compliant UUIDs. Supports UUID v4 (random, cryptographically secure via Web Crypto API), UUID v7 (time-ordered with millisecond timestamp prefix for sortable IDs), and Nil UUID. Generate up to 100 UUIDs at once.

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Click Generate to create UUIDs

UUID Generator guide

Generate unique identifiers for databases, logs, tests, and distributed systems. Toolfy supports random UUID v4 values, sortable UUID v7 values, and batch generation for practical development workflows.

Key features

Generate cryptographically secure UUID v4 values with Web Crypto
Create time-ordered UUID v7 identifiers for sortable records
Generate multiple UUIDs at once for fixtures and seed data
Copy generated identifiers without manual selection

Common use cases

Create IDs for database seed data and local test fixtures
Generate request IDs, trace IDs, or correlation IDs for debugging
Compare UUID v4 and UUID v7 formats before choosing an ID strategy

Frequently asked questions

What is the difference between UUID v4 and UUID v7?

UUID v4 is random. UUID v7 includes a timestamp component, which makes generated IDs sort more naturally by creation time.

Are the generated UUIDs secure?

UUID v4 generation uses the browser Web Crypto API when available, which is suitable for random identifier generation.

Can I generate UUIDs in bulk?

Yes. The tool can generate multiple UUIDs at once for testing, fixtures, and data import workflows.

Random Token Generator

Generate cryptographically secure random tokens using the Web Crypto API. Choose token length and output format (hex, base64, alphanumeric). Suitable for API keys, session tokens, CSRF tokens, and secret values.

Password Generator

Generate strong, cryptographically random passwords with customizable length, character sets (uppercase, lowercase, digits, symbols), and minimum character requirements. Copy instantly or generate multiple passwords for bulk use.

Demo Data Generator

Generate realistic mock datasets for testing and prototyping. Build a custom schema by picking field types — names, emails, addresses, dates, UUIDs, booleans, and more — then export any number of records as JSON or CSV. Includes ready-made presets for common schemas like User, Product, Order, Employee, and Address.

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from any input text. Useful for verifying file integrity, storing passwords, generating checksums, and debugging authentication systems.