API Key Generator

What is a API Key Generator?

An API key is a unique identifier used to authenticate requests to an API. Secure API keys must be generated using cryptographically strong random number generation to ensure they cannot be guessed or predicted. PureFormatter uses the browser's crypto.getRandomValues API to generate keys in multiple formats: hexadecimal (like many database IDs), Base64URL (compact and URL-safe), UUID v4 (universally unique identifier), and prefixed format (like Stripe's sk_live_ keys) for easy identification.

How to Use PureFormatter

1. Select the desired format (Hex, Base64, UUID, or prefixed).
2. Adjust the byte length for hex and Base64 formats.
3. For prefixed format, set your desired prefix (e.g. sk, pk, api).
4. Choose how many keys to generate.
5. Click ⚡ Generate to create the keys instantly.
6. Copy individual keys or use Copy All.

Frequently Asked Questions