How are pre-release versions like 1.0.0-beta compared to 1.0.0?

Per the semver specification, a pre-release version is considered lower precedence than the same version without a pre-release tag.

Does it validate that the input is actually valid semver?

Yes, it checks the format follows the semantic versioning specification before comparing.

Why does manual version comparison often get this wrong?

Because semver precedence rules for pre-release and build metadata aren't simple numeric or string comparison — they follow specific rules most people don't have memorized.

Does Semver Parser/Comparator upload my files to a server?

No. Semver Parser/Comparator runs entirely in your browser using on-device processing, your files never leave your device.

Semver Parser/Comparator

Parse and compare two semantic version numbers.

Runs in your browser

Version A

Version B

Version A is older than Version B

Follows Semantic Versioning 2.0.0 precedence rules: major.minor.patch, then prerelease tag. Build metadata (after +) doesn't affect comparison.

About this tool

Semantic versioning (major.minor.patch) has specific comparison rules that aren't just simple numeric or alphabetic sorting — pre-release tags and build metadata follow their own precedence rules that are easy to get wrong when comparing manually. This tool parses and compares two semantic version numbers according to the actual semver specification, giving you a reliable comparison instead of a naive string or number comparison.

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