About Random Tokens
Random tokens are strings of characters used for authentication, authorization, and security purposes. They should be cryptographically random and unpredictable.
Common uses for tokens
- API Keys: Authentication tokens for API access
- Session Tokens: Identify user sessions
- CSRF Tokens: Protect against cross-site request forgery
- Password Reset Tokens: Secure password reset links
- OAuth Tokens: Authorization tokens for OAuth flows
- JWT Secret Keys: Secret keys for signing JWTs
Token security best practices
- Use sufficient length (32+ characters recommended)
- Generate tokens using cryptographically secure random number generators
- Store tokens securely (hashed if storing in database)
- Set appropriate expiration times
- Use HTTPS for token transmission
- Rotate tokens regularly for sensitive applications
Frequently Asked Questions
What token length should I use?
For most purposes, 32 characters is sufficient. For highly sensitive applications, use 64 or more characters.
Which character set should I choose?
Alphanumeric is usually best. Use URL-safe for tokens in URLs. Use hex for tokens that need to be compact.
Are these tokens cryptographically secure?
Yes, this tool uses the Web Crypto API which provides cryptographically secure random number generation.
Should I store tokens in plaintext?
No. Hash tokens before storing them in a database, similar to passwords. Only compare the hash when validating tokens.
How long should tokens be valid?
Depends on the use case. Session tokens: hours to days. Password reset tokens: minutes to hours. API keys: can be permanent but should be revocable.