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Tool location: /dev/uuid-generator
Generate UUIDs (Universally Unique Identifiers), also known as GUIDs. UUIDs are 128-bit identifiers used to uniquely identify information in computer systems. They are essential for database records, session tokens, and distributed systems.
Choose the UUID version to generate:
Choose how many UUIDs you need to generate. You can generate multiple UUIDs at once for batch operations.
Click the Generate button to create new UUIDs. Each generation produces completely unique identifiers.
Copy individual UUIDs or all generated UUIDs at once. Use them in your database, code, or configuration files.
Support for UUID v4 (random) and other versions.
Generate multiple UUIDs simultaneously.
Standard format with or without hyphens.
Uppercase or lowercase output.
UUID v1 contains your MAC address - avoid if privacy is a concern.
Do not use sequential patterns - always generate new random UUIDs.
While collisions are unlikely, implement handling for edge cases in critical systems.
A: UUID (Universally Unique Identifier) and GUID (Globally Unique Identifier) are the same thing. UUID is the standard term, while GUID is Microsoft terminology. They follow the same specification.
A: Practically, no. UUID v4 has 122 random bits, making collisions virtually impossible. You would need to generate billions of UUIDs per second for thousands of years to have a 50% chance of collision.
A: UUID v4 is recommended for most cases due to its simplicity and randomness. Use UUID v7 if you need time-sortable identifiers. Avoid UUID v1 in public-facing systems due to MAC address exposure.
A: While UUIDs are unique, they are not designed for security. For passwords, use a dedicated password generator with configurable complexity. UUIDs are predictable in their format.