Regex Tester & Validator

Parses semantic versioning (SemVer) strings in Go using named capture groups for major, minor, and patch numbers (no leading zeros allowed), an optional hyphenated prerelease label, an optional plus-prefixed build metadata section, and any preceding prefix text. Anchored to end-of-line with multiline mode, it validates versions like 1.2.3, 1.0.0-alpha.1, or 2.0.0+build.123 across multiple lines. Ideal for dependency version validation, release tooling, and parsing version strings from logs or changelogs.