Home / Tools / Developer / UUID GeneratordeveloperUUID GeneratorGenerate RFC 4122 version 4 UUIDs locally.How manyGenerateCopyUUIDs8996c090-163a-4e9e-8c53-c52a1374d042Related toolsPassword GeneratorCreate random passwords with Web Crypto. Nothing is stored.Base64 Encoder / DecoderEncode or decode Base64 text without a network round-trip.JSON FormatterPretty-print JSON in the browser. Your data never leaves the page.