What is a token generator?
A token generator is a security tool that creates random, unique strings (tokens) used for authentication, authorization, and identification. Our advanced token generator uses cryptographically secure algorithms (CSPRNG) to produce tokens suitable for API keys, passwords, session IDs, encryption keys, and more.
Is this token generator free to use?
Yes, completely free! No registration, no hidden fees, unlimited usage. Generate as many secure tokens as you need.
How secure are the generated tokens?
Extremely secure. We use the browser's Web Crypto API (`crypto.getRandomValues()`), which is a cryptographically secure pseudo-random number generator (CSPRNG). This means tokens are unpredictable and suitable for production environments, including sensitive applications like banking and authentication.
Do you store or log generated tokens?
Absolutely not. All token generation happens 100% locally in your browser. We never transmit, store, or log any tokens. You can verify this by checking your browser's network tab or using the tool offline.
Can I use these tokens for production applications?
Yes! Our tokens use cryptographically secure random generation, making them suitable for production API authentication, database encryption, user session tokens, payment gateway secrets, and OAuth credentials.
How do I generate an API key?
1. Click the 'API Key' preset button. 2. Adjust length (32-64 characters recommended). 3. Add a custom prefix like `sk_live_`. 4. Click 'Copy' to use your token.
What is the recommended token length?
Minimum for security: 32 characters. Recommended for APIs: 32-64 characters. High-security applications: 64-128 characters. Encryption keys: 64 characters (256-bit hex) or 32 characters (128-bit hex).
Can I generate multiple tokens at once?
Yes! Use the Quantity slider to generate 1-50 unique tokens in a single click. Each token is completely unique.
How do I create a JWT token?
While this tool generates the random secret for JWT signing, you'll need a JWT library to create actual JWT tokens. Use our tool to generate a secure 256-bit hex secret, then use it with libraries like jsonwebtoken (Node.js) or PyJWT (Python).
What does 'Exclude Ambiguous Characters' do?
It removes characters that look similar (like `0` and `O`, `1` and `l`, `I` and `l`). This is helpful when printing tokens for manual entry or creating WiFi passwords.
How do I add a prefix or suffix?
Expand the 'Formatting' section. Enter your desired prefix (e.g., `sk_test_`) in the Prefix field and suffix if needed. Generate your token - it will include your custom text.
What's a 256-bit hex token?
A 256-bit hexadecimal token is a 64-character string using only 0-9 and a-f characters. It provides 256 bits of entropy (2^256 possible combinations) and is commonly used for encryption keys (AES-256) and HMAC secrets.
When should I use a PIN vs. password?
PIN: Use for numeric-only codes (ATM, phone locks, 2FA codes). Password: Use for account security requiring high strength (min 16 chars with letters, numbers, symbols).
How do I create a serial number format like XXXX-XXXX-XXXX?
Select 'Serial No.' preset or 'Custom'. Set length to 12. In Grouping, enter '4'. In Separator, enter '-'. Result: A3K9-M2P7-Q4L8-X5J3.
What's the difference between 128-bit and 256-bit hex?
128-bit (32 chars) provides ~3.4×10^38 combinations. 256-bit (64 chars) provides ~1.1×10^77 combinations. Both are considered unbreakable, but 256-bit is military-grade standard.
Can these tokens be hacked or predicted?
No. Using CSPRNG makes prediction mathematically impossible. A 32-character hex token has 2^128 possible combinations - it would take billions of years to brute force.
Should I rotate my API keys regularly?
Yes! Rotate production keys every 90 days, test keys every 180 days, and immediately if exposed. Keep 2 active keys during rotation to prevent downtime.
Where should I store generated tokens?
Safe: Environment variables (.env), Secret managers (AWS Secrets Manager, Vault), Password managers. Never: Source code, Public Git repos, client-side code.
Can I use this for password generation?
Absolutely! Click 'Password' preset for a 16-character password with uppercase, lowercase, numbers, and symbols (~95 bits entropy).
Are tokens generated offline?
Yes! This tool works completely offline. You can disconnect from the internet and it will still generate secure tokens, proving no data is sent to servers.
What algorithm do you use?
We use the browser's Web Crypto API (`window.crypto.getRandomValues()`), which accesses the operating system's cryptographically secure random number generator (CSPRNG).
What character sets are available?
Uppercase (A-Z), Lowercase (a-z), Numbers (0-9), Symbols (!@#$%...), and Hexadecimal (0-9, a-f).
What's the maximum token length?
You can generate tokens up to 512 characters long. Most secure use cases require 32-64 characters.
Can I integrate this into my application?
This is a browser tool. For apps, use native crypto libraries: `crypto` (Node.js), `secrets` (Python), `random_bytes` (PHP), or `SecureRandom` (Java).
Does this work on mobile devices?
Yes, the tool is fully responsive and works on iOS, Android, and tablets.
Token Generator vs. Password Manager?
Token Generator creates the secure string. Password Manager stores it. Use our generator to create strong passwords, then store them in your manager.
How is this different from other token generators?
Ours offers advanced formatting (prefixes, grouping), bulk generation, 100% privacy (no server), and professional presets like JWT secrets and serial numbers.
Can I use this instead of other API key generators?
Yes, it provides the same security as AWS/GitHub generators but with more customization and no account required.
