64-bit Secret Generator
Generate secure 64-bit secrets online using cryptographically secure random values. Choose hex, Base64, Base64URL, or unsigned 64-bit decimal output — ideal for API secrets, session tokens, and test credentials.
Privacy & security: Your generated secrets and hashes are processed locally in your browser whenever possible and are not stored on our servers.
Generates 64-bit (8 bytes) cryptographically secure random data.
Your generated secrets and hashes are processed locally in your browser whenever possible and are not stored on our servers.
Overview
Generate secure 64-bit secrets online using cryptographically secure random values. Choose hex, Base64, Base64URL, or unsigned 64-bit decimal output — ideal for API secrets, session tokens, and test credentials.
Benefits
- Cryptographically secure random bytes via Web Crypto
- Multiple output formats in one click
- Runs instantly in your browser
- No signup and no data stored on servers
Use Cases
- API secrets and webhook signing keys
- Session tokens and CSRF nonces
- Encryption salts for development
- Authentication and test environments
Users Also Use
How to Use
- Select an output format: hex, Base64, Base64URL, or decimal (64-bit only).
- Click Generate Secret to create 8 random bytes.
- Copy the value and store it in your secrets manager or .env file.
FAQ
- What is a 64-bit secret?
- A 64-bit secret is 8 bytes (64 bits) of cryptographically secure random data, often used for tokens, salts, and identifiers.
- Is this tool secure?
- Yes. Values use crypto.getRandomValues() in your browser. Nothing is sent to or stored on our servers.
- Are generated secrets stored?
- No. Generation is 100% local in your browser.
About 64-bit Secret Generator
Our free 64-bit secret generator helps developers and DevOps teams create high-entropy secrets for staging and production-style configs. Unlike pseudo-random scripts, this tool uses the browser Web Crypto API for stronger randomness. Use hex for HMAC keys, Base64 for env variables, or decimal when you need an unsigned 64-bit integer representation.