Random NanoID Generator

If your priority is short IDs that are easy to paste into URLs and logs but still offer strong collision resistance, NanoID is a great fit. NanoID is designed for JavaScript and produces URL-friendly IDs using a safe alphabet like A-Za-z0-9_-, which packs lots of randomness into fewer characters.

Why NanoID is popular

• Short by default: NanoID’s default length is 21 characters, chosen to reach collision resistance comparable to UUID v4 while being much shorter.
• Strong randomness: It uses Node’s crypto and the browser Web Crypto API, avoiding Math.random() for secure usage.
• Customizable: You can tune length, and even define a custom alphabet to match your product’s constraints (e.g., lowercase-only slugs, hex IDs, no ambiguous characters).

JavaScript / TypeScript examples

Basic usage:

import { nanoid } from "nanoid";

const id: string = nanoid();      // e.g. "V1StGXR8_Z5jdHi6B-myT"
const short: string = nanoid(10); // shorter => higher collision risk

console.log({ id, short });

Custom alphabet + size (great for “slug IDs”):

import { customAlphabet } from "nanoid";

// hex-ish IDs, 10 chars
const makeHexId = customAlphabet("1234567890abcdef", 10);

const orderId: string = makeHexId(); // e.g. "4f90d13a42"
console.log(orderId);

When NanoID is the best choice

• Public URLs (invite links, short resources, share links)
• Client-generated IDs (optimistic UI, offline drafts)
• Distributed systems where shortness matters (logs, analytics events)

Need a compact random number generator or random generator for URLs? This NanoID tool serves as a configurable random object generator, creating URL-safe, unique strings. It beats a generic google random number generator or random nr tool by offering cryptographically strong, collision-resistant identifiers customizable to your needs.