Token Generator

Quick presets

Character sets

Uppercase letters A–Z

Numbers 0–9

Lowercase letters a–z

Symbols !@#…

Hex preset active: character pool restricted to 0–9, a–f.

Please select at least one character set.

Length

characters

1128256512

Quantity

tokens

Strength

bits of entropy · character pool

× characters

Cryptographically secure

Uses window.crypto.getRandomValues() — the same standard as password managers and security APIs. No weak Math.random() pseudo-randomness.

Complete privacy

Tokens are generated exclusively in your browser. No network request, no server, no logs. Your generated strings are visible only to you.

Versatile use cases

From API keys to session tokens, secure passwords and PINs — configurable character sets (A–Z, a–z, 0–9, symbols) for every use case.

Frequently asked questions

Everything about secure token generation in the browser

The Token Generator uses the Web Crypto API (window.crypto.getRandomValues()), which produces cryptographically secure pseudo-random numbers. This standard is used by banks, password managers, and security APIs worldwide. The output is unpredictable and suitable for all security-critical applications.

No. All tokens are generated exclusively in your browser — no network request or server upload takes place. The generated strings never leave your browser unless you copy them yourself.

For API keys we recommend at least 32 characters (alphanumeric), ideally 64. A 64-character alphanumeric string provides over 380 bits of entropy — far more than required for practical security (128 bits is considered sufficient). For passwords, 16–20 characters with all character sets enabled is more than adequate.

Entropy measures the randomness of a token. It is calculated as length × log₂(character pool size). From 128 bits, a token is considered cryptographically secure against brute-force attacks. From 256 bits, it is practically uncrackable — even with all the computing power on Earth, an attack would take longer than the age of the universe.

API Key (64 chars, alphanumeric): Ideal for authentication tokens, webhook secrets and session IDs. Password (20 chars, all sets): Maximum password complexity for account passwords. PIN (6 digits): Numeric codes for SMS verification. Hex Token (32 chars, 0-9 + a-f): Compatible with systems that expect hexadecimal tokens.

Generate secure tokens, passwords and API keys

The token generator creates random, high-entropy strings for developers, system administrators and anyone who needs a secure secret in a hurry. Instead of inventing characters yourself or trusting an unknown web service, you generate every token directly in your browser through the cryptographically secure Web Crypto API. Nothing you create ever leaves your device – there is no server upload involved.

Common use cases

API keys and credentials: Create unmistakable keys for REST APIs, webhooks or internal microservices that are practically impossible to guess.
Strong passwords: Generate long passwords with upper- and lowercase letters, digits and symbols for databases, server logins or new user accounts.
Session tokens and salts: Whether you need a random salt, a CSRF token or a one-time reset code, it is ready in seconds at the length you choose.
Wi-Fi and device codes: Create random setup codes, coupon or activation keys that cannot be guessed in a systematic way.

How to create a token

1 Pick a preset or decide yourself which character sets (lowercase, uppercase, numbers, symbols) to include.
2 Set the length and the number of tokens using the sliders.
3 Keep an eye on the entropy meter, which instantly shows how strong your token is.
4 Copy individual tokens with one click or download the whole list as a file.

Why use this generator

Unlike many web services, this tool runs entirely client-side: the random values come from the browser Web Crypto API rather than a weak pseudo-random source. You can see the estimated entropy in bits, generate several tokens at once and use everything without sign-up, waiting time or limits. For security-critical secrets the rule of thumb is simple: generate them fresh, use them only once and store them somewhere safe such as a password manager. Use a separate, sufficiently long token for each service instead of reusing one default value.

Free tools that pair well with this one – right in your browser, no sign-up.

Hash Generator Calculate MD5, SHA-256 & more Bcrypt Generator Hash & verify passwords securely UUID Generator Generate NIL, v1, v3, v4 & v5 UUIDs ULID Generator Time-sortable unique identifiers