SemVer Explainer

Semantic Versioning (SemVer) defines how software versions convey meaning — major, minor, and patch updates. This tool helps decode version ranges like ^1.2.3 or ~0.5.0.

Enter a version constraint:

Semantic Versioning follows the format: MAJOR.MINOR.PATCH. Each part signals the type of change:

MAJOR incompatible API changes
MINOR backward-compatible feature additions
PATCH backward-compatible bug fixes

This SemVer Explainer helps you parse and understand version strings like 1.2.3 or 2.0.0-alpha.1+build.42. Use the interactive controls to bump versions, compare two versions, and quickly test how common range operators (`^`, `~`, `&gte;=`, `&lte;`) behave.

Semantic Versioning (SemVer) is the standard for version numbers in the JavaScript ecosystem and many other ecosystems. It provides a predictable contract for breaking changes (major), new features (minor), and bug fixes (patch).