Secure Token Generator – Generate Secure Online (Free Tool)
Free online Secure Token Generator tool to generate cryptographically secure tokens for API keys and session identifiers. Create random tokens with customizable format and length.
Example Output
A 256-bit cryptographic token encoded as URL-safe base64 — suitable for session tokens, API keys, password-reset links.
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What is Secure Token Generator?
Generate cryptographically secure tokens for session IDs, API keys, password-reset links, CSRF tokens, or webhook signing secrets. Uses `crypto.getRandomValues()` — the same primitive Node.js, Python, and OpenSSL use for security-critical randomness. Output in hex, base64, or URL-safe base64.
Why use this tool?
- Your data stays private — all processing happens locally in the browser
- No telemetry, no tracking pixels, no third-party scripts
- Open-and-go: bookmark the page once and never look for an alternative
- No upsell to a paid plan: every feature is free forever
- Designed for everyday quick tasks — open the page, get the answer, move on
How to use
- Pick token length (32 / 48 / 64 bytes recommended)
- Choose encoding (hex / base64 / base64url)
- Click Generate — token uses crypto.getRandomValues
- Copy or download for storage
Examples
Password-reset link token
Generate a 32-byte (256-bit) base64url token, store its hash, and email the plaintext as part of the reset URL.
Webhook signing secret
Generate a 48-byte hex token to share with a webhook consumer — use as HMAC-SHA256 key to sign payloads.
API key for a service
A 32-byte base64url token is plenty for an API key — short enough to fit in headers, long enough that brute-force is impossible.
Common use cases
- Session ID generation
- API key creation
- Password-reset / email-verification tokens
- CSRF tokens
- Webhook / HMAC signing secrets
Troubleshooting
- Token contains characters like `+` `/` `=` that break URLs
- Switch to base64url encoding — URL-safe variant uses `-` and `_` instead and omits padding.
- Token is shorter than expected
- Length is in raw bytes; the encoded string is longer (hex = 2x, base64 = ~1.35x). 32 bytes hex = 64 characters; 32 bytes base64 ≈ 43 characters.
- Need to use the same token in multiple systems
- Generate once and copy/distribute. Don't regenerate — random output isn't reproducible by design.
Frequently Asked Questions
Secure tokens use cryptographically strong random number generation, making them impossible to predict. They are suitable for authentication, API keys, and security-sensitive applications.
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