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Regex for strong password validation in JavaScript

Q: What is the regex for strong password validation in JavaScript?

^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).{8,}$ — This pattern uses lookaheads to require at least one lowercase, one uppercase, and one digit across 8+ characters. Test candidate passwords live below.

This pattern uses lookaheads to require at least one lowercase, one uppercase, and one digit across 8+ characters. Test candidate passwords live below.

Working example

/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).{8,}$/

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The pattern and sample strings below are pre-loaded. Edit anything, or describe a variation in plain English and generate your own.

Describe what to match

/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).{8,}$/valid ✓

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Tested live on the JavaScript engine. Other flavors are validated and flagged for differences, not executed.

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