UUID Generator vs Password Generator
Both tools are 100% free, browser-based, and require no signup. Here is how they differ so you can pick the right one for your task.
UUID Generator
Free UUID generator. Generate version 1, 4, and 7 UUIDs in bulk — individually or as a JSON / newline list. Runs 100% in your browser. No signup, no server.
Use UUID Gen →Password Generator
Generate strong, cryptographically secure passwords instantly. Choose length up to 64 chars, character types — up to 10 at once. Never sent anywhere. Free, no signup.
Use Password Gen →Feature Comparison
| Feature | UUID Gen | Password Gen |
|---|---|---|
| UUID v4 — cryptographically random, RFC 4122 compliant | ✓ | — |
| UUID v1 — timestamp-based with random node | ✓ | — |
| UUID v7 — sortable timestamp + random (draft RFC) | ✓ | — |
| Bulk generation — 1 to 100 UUIDs at once | ✓ | — |
| Copy individually, as a newline list, or JSON array | ✓ | — |
| Uppercase / lowercase toggle | ✓ | — |
| Runs entirely in your browser — nothing is sent to a server | ✓ | — |
| Cryptographically random (crypto.getRandomValues) | — | ✓ |
| Adjustable length: 4 to 64 characters | — | ✓ |
| Toggle uppercase, lowercase, numbers, symbols | — | ✓ |
| Generate up to 10 passwords at once | — | ✓ |
| Password strength meter with entropy score | — | ✓ |
| 100% browser-based — passwords never leave your device | — | ✓ |
| 100% free — no signup, no watermarks | ✓ | ✓ |
| Browser-based — files never uploaded | ✓ | ✓ |
When to Use Each Tool
- →Select v4 (random), v1 (timestamp), or v7 (sortable timestamp + random) from the version selector. v4 is the right choice for most use cases.
- →Use the quantity slider or input to generate between 1 and 100 UUIDs at once.
- →Toggle between lowercase (default) and UPPERCASE output to match your project's coding conventions.
- →Drag the length slider to choose a password length between 4 and 64 characters. 16+ characters is recommended.
- →Toggle uppercase letters, lowercase letters, numbers, and special symbols to include.
- →Use the count selector to generate 1 to 10 independent passwords at once.
Frequently Asked Questions
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. They are formatted as 32 hexadecimal digits separated by hyphens, e.g. 550e8400-e29b-41d4-a716-446655440000. Also called a GUID (Globally Unique Identifier) in Microsoft contexts.
UUID v1 encodes the current timestamp and a node identifier (MAC address or random bytes), making it time-sortable but potentially leaking timing information. UUID v4 is entirely random — the most widely used version for general-purpose unique IDs. UUID v7 (a newer draft standard) combines a millisecond-precision Unix timestamp with random bits, making it both random and naturally time-sortable — ideal for database primary keys.
Yes. We use the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers — the same standard used by security software. This is far more secure than Math.random().
Yes. Our generator runs entirely in your browser. Your passwords are never sent to any server, never logged, and never stored. You can disconnect from the internet and it still works.
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