Identifiersflags: g

Semantic Version (SemVer)

Match semantic version strings like 1.2.3, 1.2.3-beta.1, or 1.2.3+build.42.

Try it in RegexPro →

Available in

JSSupported

JavaScript / ECMAScript

Browser-native RegExp. Default if you don't pick.

PYSupported

Python (re)

CPython stdlib `re`. Unicode-aware `\w` and `\d` by default.

GOSupported

Go (RE2)

Linear-time matching. No backreferences or lookarounds.

Pattern

regexengine-agnostic
(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(?:-[\w.]+)?(?:\+[\w.]+)?   (flags: g)

Raw source: (?:0|[1-9]\d*)\.(?:0|[1-9]\d*)\.(?:0|[1-9]\d*)(?:-[\w.]+)?(?:\+[\w.]+)?

How it works

Three numeric components (no leading zeros) separated by dots. Optional pre-release label after - and optional build metadata after + per the SemVer 2.0.0 spec.

Examples

Input

1.0.0

Matches

  • 1.0.0

Input

2.3.1-beta.1

Matches

  • 2.3.1-beta.1

Input

1.0.0+build.42

Matches

  • 1.0.0+build.42

Common use cases

  • •Package version validation
  • •Changelog parsing
  • •Dependency version extraction
  • •CI/CD pipeline version tagging

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