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Counter - a 12 bit long counter of a self-increasing sequence.It can take up to 32 unique values (including 0) Machine Id - a 5 bit long machine identifier.Datacenter Id - a 5 bit long datacenter identifier.Timestamp - a 42 bit long number of milliseconds elapsed since 1 January 1970 00:00:00 UTC.
#Uuid generator version 4 api 64 bits#
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Flake IDs are 64-bits, half the size of a UUID.Nano ID was ported to many programming languages.įlakeId is a distributed ID generation algorithm based on Twitter Snowflake. So ID size was reduced from 36 to 21 symbols. It uses a larger alphabet than UUID ( A-Za-z0-9_-). It uses Xorshift128+ RNG and can use any cryptographically strong RNG. nanoidĪ tiny, secure, URL-friendly, unique string ID generator ( based on nanoid ). It also provides translators to convert back and forth from RFC compliant UUIDs to the shorter formats. Generate and translate standard UUIDs into shorter - or just different - formats and back ( based on short-uuid ). Version 3 use Md5 for hash and version 5 use Sha1. Port from node-uuid and using built-in Xorshift128+ for random generator. Support for 1, 3, 4 and 5 versions of UUID. Cross-platform generation of UUID based on RFC-4122.