ULID & NanoID Generator
Generate batches of modern unique IDs — sortable ULIDs or URL-safe NanoIDs
Examples
Generate 10 ULIDs for database rows
import { ulid } from "ulid"
const ids = Array.from({ length: 10 }, () => ulid())
// '01HXYZ4K8P0000000000000000' ← sortable by creation timeULIDs are 26 characters, lexicographically sortable, and safe to use as primary keys in databases that support string IDs.
NanoID with custom alphabet for readable tokens
import { customAlphabet } from "nanoid"
const nanoid = customAlphabet('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ', 12)
const token = nanoid() // e.g. 'A3K9FZ2MQ8RT'A custom alphabet of uppercase letters and digits produces human-readable tokens free of ambiguous characters, perfect for invite codes or short IDs.
Details
ULID (Universally Unique Lexicographically Sortable Identifier) encodes a 48-bit millisecond timestamp plus 80 random bits into 26 Crockford base32 characters. Unlike UUID v4, ULIDs sort chronologically by default, making them ideal for database primary keys. NanoID is a tiny, secure, URL-friendly unique string ID library. Its default 21-character output uses an alphabet of 64 URL-safe characters and provides a collision probability comparable to UUID v4. Both run entirely in your browser — no data leaves your device.
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