Alfred UUID & ULID generator workflow

Alfred workflow to generate random UUIDs & ULIDs.

• UUID - Universally Unique IDentifier (e.g. 01827074-6E45-DF55-2C28-533EC18EAD07)
• ULID - Universally unique Lexicographically sortable IDentifier (e.g. 01G9R78VJ5VXAJRA2K7V0RXB87)

Install

npm install --global @hoto/alfred-uuid-ulid-generator

Why use ULIDs vs UUIDs

Example ULID conversion:

ULID:              01G9R78VJ5VXAJRA2K7V0RXB87
ULID as UUID v4:   01827074-6E45-DF55-2C28-533EC18EAD07
ULID as timestamp: 2022-08-06T00:00:54.853Z

ULIDs features:

• Lexicographically sortable (even when converted to UUID v4)
• Compatible with UUIDs 128 format
• Shorter than UUIDs, 26 character string vs 36 characters for UUID
• Encoded using Crockford’s Base32 alphabet (0123456789ABCDEFGHJKMNPQRSTVWXYZ)
  • Excludes I, L, O, and U letters to avoid any unexpected confusion
  • UUID uses hex digits plus hyphens (0-9, A-F)
• The timestamp is accurate to the millisecond

ULID is made up of two base32 encoded numbers, a UNIX timestamp followed by a random number:

01G9R78VJ5      VXAJRA2K7V0RXB87

|----------|    |----------------|
Timestamp          Randomness
48bits             80bits

Develop

Create symlink for rapid workflow testing:

npm install -g

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