Sqids (formerly Hashids) · Generate Short IDs from Numbers
sqids.org
What Jamie wrote
I've never thought much about how the random codes associated with YouTube videos work. This library makes it easy to create unique tokens, sqids, from integers.
Link shortening, generating unique event IDs for logging, generating IDs for products/objects on a website (like YouTube does for videos), generating short IDs for text messages, confirmation codes in emails, etc.
Could be handy.