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What is UUID?
Universally Unique Identifier is a 128-bit value formatted as 36 hex characters used to identify resources without central coordination. Version 4 uses randomness for uniqueness.
Related tools
Try these DevStackIO tools for UUID:
UUID GeneratorFree UUID v4/v7 generator with bulk mode and JSON export. Cryptographically random, runs client-side.Open tool →ULID GeneratorGenerate sortable ULIDs (time-ordered IDs). Use when ordering matters; for random UUIDs use uuid-generator, for tokens use token-generator. Input: count option. Returns ULID strings. 100% client-side.Open tool →
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Definitions are written in plain language and sourced from MDN Web Docs, W3C specifications, and RFCs. Related tools run 100% in your browser — no data leaves your device.
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