UUID Generator
Generate random UUID v4, NanoID, or ULID identifiers. Bulk generate up to 1000. Copy to clipboard instantly.
About these formats
128-bit random identifier in 8-4-4-4-12 hex format. 2^122 possible values. The internet standard for unique IDs in databases, APIs, and distributed systems.
21-character URL-safe string using A-Za-z0-9_-. Smaller than UUID with similar collision resistance (~126 bits entropy). Popular in frontend apps and short URLs.
26-character Crockford Base32 string. First 10 chars encode millisecond timestamp (lexicographically sortable). Last 16 are random. Great for time-ordered database keys.
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Frequently Asked Questions
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