Short ID Generator
Generate short, URL-friendly unique identifiers for your applications. Short IDs are more compact than UUIDs while still providing excellent uniqueness for most use cases. Customize the length and character set to fit your needs.
Short ID Generator Settings
111,429,157,112,001 possible IDs (collision probability: negligible)
Short IDs are URL-friendly alphanumeric identifiers that exclude ambiguous characters (0, O, l, I) for better readability.
Use cases: URL shorteners, referral codes, order IDs, API keys, and anywhere you need compact, unique identifiers.
FAQ
How do short IDs compare to UUIDs?
Short IDs are more compact and URL-friendly than 36-character UUIDs. A 21-character nanoid-style short ID provides similar collision resistance to UUIDs while being easier to use in URLs and display to users.
What length should I use?
The default 21 characters provides excellent uniqueness for most applications. For smaller datasets, 8-12 characters may suffice. Increase length for applications requiring billions of unique IDs.
Are these IDs URL-safe?
Yes, the default character set uses only URL-safe alphanumeric characters. You can customize the alphabet to exclude ambiguous characters or add special characters as needed.