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UUID / ULID / Snowflake Decoder

Extract timestamps, version, and entropy from UUID v7, ULID, and snowflake IDs.

Formatters & Utilities
Privacy: 100% Client-Side. Your data never leaves this browser tab. Processing uses Web APIs and client-side libraries only.

Decode UUID (v1/v7 timestamps), ULID creation time, and Twitter/Discord snowflakes — entirely client-side. Input persists across refresh.

Detected: uuid

Version7
VariantRFC 4122
Canonical018f1a2b-3c4d-7e8f-9a0b-1c2d3e4f5a6b
Timestamp (UUID v7)2024-04-26T11:29:52.205Z
Rand / seq (hex)7e8f9a0b1c2d3e4f5a6b

Unix ms: 1714130992205

What timestamps hide inside IDs?

Modern ID formats often embed creation time: UUID v7 and ULID store Unix milliseconds; snowflakes pack a timestamp plus worker/process bits.

Paste an ID to inspect version/variant (UUID), entropy (ULID), or worker/increment fields (snowflake) without leaving the browser.

How to use this tool

  1. Paste a UUID, 26-character ULID, or numeric snowflake.
  2. Read the decoded fields and ISO timestamp when present.

Frequently asked questions

Which snowflake epoch is used?

Primary fields use the Twitter epoch; a Discord-epoch timestamp is also shown for convenience.

Is my data sent to a server?

UUID / ULID / Snowflake Decoder runs 100% in your browser. Inputs stay on your device and are not logged or stored by stbox servers.