🪪Short ID Generator

Generate short, unique IDs suitable for URLs, tokens, and identifiers.

Length: 12

Count: 5

About Short ID Generator

Generate compact, URL-safe unique identifiers using customisable character sets and lengths. Ideal as NanoID-style alternatives to UUIDs when shorter identifiers are needed in URLs, database keys, share links, or API tokens. Configure length, alphabet, and batch size.

How to Use Short ID Generator

1
Set ID length
Choose the number of characters for each generated ID — 8, 12, 21, or a custom value.
2
Choose character set
Select alphanumeric, URL-safe, or numeric-only alphabet.
3
Generate and copy
Click Generate to produce one or more IDs and copy them to the clipboard.

Common Use Cases

Generating short share link tokens for URL shorteners
Creating compact database record identifiers
Producing session tokens for web applications
Building human-readable but unique IDs for public-facing URLs

Frequently Asked Questions

How unique are short IDs compared to UUIDs?

Short IDs are statistically unique within their probability space — a 21-character alphanumeric ID has approximately 2^126 possible values, similar to UUID v4. Shorter lengths reduce collision resistance, so match length to your use case's scale.

What character set is used by default?

The default alphabet is URL-safe: A-Z, a-z, 0-9, plus underscore and hyphen. You can restrict to alphanumeric only or define a custom alphabet.