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Generate random UUIDs (v4) and other versions in bulk instantly.
Pro includes batch UUID generation, v1/v4/v5 support, and API access for automated workflows.
A UUID (Universally Unique Identifier) is a 128-bit identifier that is practically unique. Version 4 UUIDs are randomly generated and have the format xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx.
While not mathematically guaranteed, the probability of generating a duplicate UUID v4 is astronomically small - you would need to generate about 2.71 quintillion UUIDs to have a 50% chance of a collision.
UUID Generator is part of BriskTool's collection of free online tools. All processing runs entirely in your browser for maximum privacy and speed.