Predefined character sets to use with nanoid. Used by nanoid-generate.

Install nanoid and dictionary

npm i nanoid nanoid-dictionary

Require a customAlphabet from nanoid and pass a string from the dictionary:

import { customAlphabet } from 'nanoid';
import { lowercase } from 'nanoid-dictionary';

const lowercaseRandomString = customAlphabet(lowercase, 10);

Numbers from 0 to 9

import { numbers } from 'nanoid-dictionary';

Lowercase English hexadecimal lowercase characters: 0123456789abcdef

import { hexadecimalLowercase } from 'nanoid-dictionary';

Uppercase English hexadecimal uppercase characters: 0123456789ABCDEF

import { hexadecimalUppercase } from 'nanoid-dictionary';

Lowercase English letters: abcdefghijklmnopqrstuvwxyz

import { lowercase } from 'nanoid-dictionary';

Uppercase English letters: ABCDEFGHIJKLMNOPQRSTUVWXYZ

import { uppercase } from 'nanoid-dictionary';

Combination of all the lowercase, uppercase characters and numbers from 0 to 9

Does not include any symbols or special characters

import { alphanumeric } from 'nanoid-dictionary';

Numbers and english alphabet without lookalikes: 1, l, I, 0, O, o, u, v, 5, S, s, 2, Z.

Complete set: 346789ABCDEFGHJKLMNPQRTUVWXYabcdefghijkmnpqrtwxyz

import { nolookalikes } from 'nanoid-dictionary';

Same as nolookalikes but with removed vowels and following letters: 3, 4, x, X, V.

This list should protect you from accidentally getting obscene words in generated strings.

Complete set: 6789BCDFGHJKLMNPQRTWbcdfghjkmnpqrtwz

import { nolookalikesSafe } from 'nanoid-dictionary';

All the allowed characters for a cookie value defined in RFC6225.

import { cookieSafe } from 'nanoid-dictionary';

All the characters that actually work in modern browsers. Might not be suitable for servers, use with caution.

import { cookieUnsafe } from 'nanoid-dictionary';