Security ToolsPrivate by design
API Key Generator
Generate cryptographically random API keys in hex or Base64URL format, with an optional prefix like "sk_live" — generated entirely in your browser.
How to use this tool
- 1Choose a key length and format.
- 2Optionally add a prefix.
- 3Click Generate to create a batch of keys, and copy any one.
Frequently asked questions
How is randomness generated?+
Using the browser's cryptographically secure crypto.getRandomValues API, not Math.random, which is appropriate for generating secrets.
Should I store these keys anywhere?+
These are generated locally and not saved by this tool — store them in a secure secrets manager or environment variable in your own systems.
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