Generate RFC 4122 compliant Universally Unique Identifiers instantly in your browser.
Generate robust, universally unique identifiers (v4).
The UUID Generator instantly creates random version 4 UUIDs that you can use as primary keys in your database, random tokens, or unique identifiers across distributed systems. You can generate up to 10,000 UUIDs at a time.
UUID stands for Universally Unique Identifier. It is a 128-bit number used to identify information in computer systems. The standard representation is 32 hexadecimal digits separated by hyphens (e.g., 123e4567-e89b-12d3-a456-426614174000).
Yes. This tool uses the industry-standard uuid v4 library, which relies on cryptographic pseudo-random number generators.
The probability of generating two identical v4 UUIDs is practically zero. You would need to generate 1 billion UUIDs per second for 85 years to reach a 50% chance of a single collision.
Runs instantly on your local device.
No files are ever stored or uploaded.
Works perfectly on any screen size.
Delivers professional-grade output.
Use it on Chrome, Safari, or Edge.
Unlimited usage with no hidden fees.
Get results in seconds with our streamlined, browser-native process.
Choose your required UUID variant, typically defaulting to the industry-standard Version 4.
Determine if you need a single localized key or a bulk array of thousands of identifiers.
Toggle the inclusion of hyphens or uppercase formatting based on your strict schema rules.
Copy the single string or export the batch array directly to your clipboard or a text file.
Designed to save time, protect your privacy, and deliver professional-grade results every time.
Guarantees structural integrity and version bits align perfectly with established IETF identifier standards.
Leverages the underlying operating system's hardware entropy to ensure absolute maximum randomness.
Instantly loops the generation sequence to provide massive arrays of keys for extensive testing architectures.
Operates 100% locally, eliminating server latency and allowing for rapid identifier generation without an internet connection.
See how different professionals leverage this tool in their daily workflows.
Generate massive lists of non-colliding primary keys to populate local development databases prior to testing.
Mint identifiers for microservice payloads ensuring traceability across complex event-driven architectures.
Utilize high-entropy strings to assign unique, unguessable session states for web application users.
Assign temporary unique IDs to frontend React or Vue components before they are persisted to a backend.
Why thousands choose our platform over traditional software.
Everything you need to know about this tool.
Practically nothing in modern usage. GUID (Globally Unique Identifier) is simply Microsoft's historical terminology for the exact same RFC 4122 UUID standard utilized across the rest of the software industry.
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