Regex Examples
These examples cover everyday developer tasks: validating emails, parsing URLs, matching UUIDs, and checking date formats. Each pattern is a starting point — test with your real data before production use.
Email and URL
Email patterns balance strictness vs false negatives. URL regex should allow schemes and paths your app supports. Use the Regex Generator presets as a baseline.
Identifiers
UUID v4, semver, and kebab-case slugs each have well-known patterns. Prefer allowlists over overly complex regex when security matters.
Example
^[\w.+-]+@[\w.-]+\.[a-zA-Z]{2,}$