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UUID Formats Converter

Convert UUIDs between standard, braces, URN, no-hyphens, Base64, and integer formats

UUID Format Converter

Generate or paste a UUID to see all formats

All Formats

Standard (lowercase)
0d5c3860-1ca5-4be4-961f-a5d4ebf01a5f
Uppercase
0D5C3860-1CA5-4BE4-961F-A5D4EBF01A5F
No Hyphens
0d5c38601ca54be4961fa5d4ebf01a5f
With Braces
{0d5c3860-1ca5-4be4-961f-a5d4ebf01a5f}
URN
urn:uuid:0d5c3860-1ca5-4be4-961f-a5d4ebf01a5f
Base64
DVw4YBylS+SWH6XU6/AaXw==
Base62 (short)
pd2N0zad6S56gOzNVq1RB
Integer (BigInt)
17758798685895927781889934403390413407
Version
v4
Variant
RFC 4122 (standard)

UUID v4 Structure (128 bits)

Bytes 0–3 (time_low)

00001101 01011100 00111000 01100000

Bytes 4–5 (time_mid)

00011100 10100101

Bytes 6–7 (version + time_hi)

01001011 11100100

Bytes 8–9 (variant + clock_seq)

10010110 00011111

Bytes 10–15 (node)

10100101 11010100 11101011 11110000 00011010 01011111

Bits 48–51 (byte 6, high nibble): Version = 4

Bits 64–65 (byte 8, high bits): Variant = 10xx (RFC 4122)

• Remaining 122 bits are cryptographically random (v4)

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UUID Formats Converter — Free Online Tool | FreeTool