Secret Key Generator
Generate random bytes with the browser cryptographic API and display them as a hexadecimal key-sized string.
How to use Secret Key Generator
- Choose Key size: 128, 192 or 256 bits.
- Click Run tool to generate the value.
- Copy the value only into an appropriate secure application configuration; do not publish it.
A practical example
Options: {
"bits": "256"
}
Example output:
3e0639e9cc389202a109eda9cdd7e6f5423a954b15f0167390554fa72dc3c305Limitations and common mistakes
Generation does not create an API credential at a provider or store the value in a secrets manager. Keep real generated secrets out of screenshots, logs, public files and URLs.
Questions about Secret Key Generator
Does this register a credential with a service?
No. This tool generates random data. Provider-issued API keys must be obtained from that provider.
Can I recover a previously generated value?
Do not rely on recovery from this tool. Store a real credential through your own appropriate secure workflow.
How long is the hexadecimal output?
There are two hexadecimal characters per random byte; a 256-bit value is 32 bytes and produces 64 hexadecimal characters.
Supported input and output
Key size: 128, 192 or 256 bits.
Hexadecimal text: 32, 48 or 64 characters for the selected bit size.