Question 1

What is a Snowflake ID?

Accepted Answer

A Snowflake ID is a 64-bit unique identifier invented at Twitter. It packs a 41-bit millisecond timestamp, a 10-bit machine/worker ID and a 12-bit sequence into a single integer, so IDs are sortable, time-ordered and generated without a central coordinator.

Question 2

Which services use Snowflake IDs?

Accepted Answer

Twitter, Discord, Instagram and many distributed databases use Snowflake-style IDs. Discord uses the same 41+10+12 layout as Twitter with epoch 1420070400000 (2015-01-01). Instagram uses a 41+13+10 variant.

Question 3

Can this tool decode any Snowflake ID?

Accepted Answer

Yes. Paste any Twitter or Discord ID and the decoder will reveal the embedded timestamp, worker ID and sequence. You can switch the epoch to match the service that issued the ID.