Semver Calculator

Compare, increment, and satisfy semver ranges locally

Compare semver versions, bump major/minor/patch, and test range satisfaction — npm-style, fully client-side.

Also known as: semver comparator · version comparator · bump version · semver range checker

100% In-Browser & Private — your data never leaves this device
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How to use the Semver Calculator

  1. Enter two versions to compare, or a version plus a semver range.
  2. Use Bump to increment major, minor, or patch.
  3. Copy comparison results or the next version string.

FAQ

Are pre-release tags supported?
Yes — versions like 1.2.3-beta.1 follow standard semver ordering rules.
Does this publish packages?
No — it only calculates locally. Use your CI or npm to publish.
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