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.
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.
For Version 4 UUIDs, the tool utilizes the browser's cryptographic API to generate 122 bits of true randomness. The mathematical probability of generating a duplicate is so infinitesimally small that it is functionally impossible.
Yes, the batch generation feature allows you to define a specific quantity, minting thousands of unique identifiers instantly, which is ideal for populating database seed files.
While Version 4 (Random) is the default due to modern best practices, the engine can be toggled to generate Version 1 (MAC address and timestamp-based) or Version 5 (Namespace name-based) strings.
By default, the output includes standard 8-4-4-4-12 hyphenation. However, the interface allows you to strip hyphens instantly if your specific database schema requires a raw 32-character hex string.
Absolutely. Because the generation utilizes standard Web Crypto protocols rather than predictable math fallbacks, the resulting strings are cryptographically secure and production-ready.
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