API Key Generator
Generate secure API keys with configurable length, prefixes, separators, and character sets.
API Key Generator tool
Uses secure browser randomness. Press Ctrl/Cmd + Enter to generate.
| Metric | Value |
|---|
Privacy: generation runs locally in your browser. No API keys are stored or transmitted.
Choose the random length, optional prefix, and character sets. The tool uses crypto.getRandomValues() to generate secure random characters locally in your browser.
Examples
- pk_live_ + 32 random chars → typical public/private key style prefix
- sk_test_ + grouped output → easier visual scanning during development
- 64-char key with letters and numbers → higher entropy output
FAQ
- What is an API key?
An API key is a generated credential string commonly used to identify or authenticate requests made to an API.
- Is this generator secure?
Yes. It uses the browser’s cryptographically secure randomness API, crypto.getRandomValues(), and runs locally in your browser.
- Can I customize the format?
Yes. You can choose length, character sets, optional prefix, count, and grouping separators.
- Are generated keys stored?
No. Nothing is stored or transmitted by this page.