Random Base64 String
Generate a random 32-byte Base64-encoded string instantly — mock tokens and keys for development and testing. Free, client-side Base64 generator.
🔒 100% Client-Side Processing
Your data is processed entirely in your browser and never transmitted to any server.
Common Use Cases
Mock secrets in examples
Fill config samples and documentation with realistic-looking Base64 keys that were never real.
Parser test payloads
Generate valid Base64 of known byte length for decoder and validation tests.
Frequently Asked Questions
- What exactly is generated?
- 32 random bytes encoded to a 44-character Base64 string (with padding). The format matches what you would see from key-generation commands like openssl rand -base64 32. Want plain hex instead of Base64? Use the Random Hex String Generator.
- What is a random Base64 string useful for?
- Placeholder session tokens, mock signing secrets in config file examples, test data for Base64 parsers, and realistic-looking credentials for documentation that must never contain real ones.
- Is my data private when I use this tool?
- Yes. This tool runs entirely in your browser using client-side JavaScript — nothing you type is transmitted to, logged by, or stored on any server. You can safely process confidential text, tokens, or code.