slugid

Slugid - Compressed UUIDv4

A slugid is a URL-safe base64 encoded UUID version 4 stripped of == padding bringing the total size to 22 characters.

Disclaimer: This is not an officially supported Google product.

Examples of slugids:

• U_sWAEJnR4epXu-TK0FCYA
• -8prq-8rTGqKl2W9SSfyDQ
• ti8C-AKGQsq3rDjSuXe94w
• Fum-zBhASyO50rg3mtQcD

There are two variants of slugids:

• The Slugid.v4() variant, which is a random UUID v4.
• The Slugid.nice() variant, which is a random UUID v4 selected such that the slugid encoding doesn't start with -.

The nice variant is nicer to use in commandline utilities, but it comes at a slight cost in entropy. For more details refer to the original implementation in javascript.

See also

• Slugid for Javascript (npm).
• Slugid for Python (pypi).
• Slugid for golang.