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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)
6bf170b1-672c-498e-8f22-a0bb70162f80
Uppercase
6BF170B1-672C-498E-8F22-A0BB70162F80
No Hyphens
6bf170b1672c498e8f22a0bb70162f80
With Braces
{6bf170b1-672c-498e-8f22-a0bb70162f80}
URN
urn:uuid:6bf170b1-672c-498e-8f22-a0bb70162f80
Base64
a/FwsWcsSY6PIqC7cBYvgA==
Base62 (short)
3hGw59IAYgbyvcklDtV408
Integer (BigInt)
143481024777083761981224917751490293632
Version
v4
Variant
RFC 4122 (standard)

UUID v4 Structure (128 bits)

Bytes 0–3 (time_low)

01101011 11110001 01110000 10110001

Bytes 4–5 (time_mid)

01100111 00101100

Bytes 6–7 (version + time_hi)

01001001 10001110

Bytes 8–9 (variant + clock_seq)

10001111 00100010

Bytes 10–15 (node)

10100000 10111011 01110000 00010110 00101111 10000000

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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