SemVer Comparator & Range Checker
SemVer Comparator & Range Checker: Parses and compares SemVer 2.0.0 values, including prerelease precedence, checks standard range expressions, and calculates version increments. Processing runs locally in your browser.
About this semver comparator & range checker
Parses and compares SemVer 2.0.0 values, including prerelease precedence, checks standard range expressions, and calculates version increments. Processing runs locally in your browser Transforms and validates developer data structures locally, preventing confidential payload exposure during data wrangling.
Syntax parsing & data transformation logic
Reads JSON versions and operation, then uses the bundled SemVer library to compare versions, test a version against a range, or increment a selected release segment. Returns JSON for compare/range and a version string for increments.
Worked conversion & output example
Scenario: An npm package maintainer determines the next semantic release version after a backwards-compatible feature addition.
Sample input:
Processing: Validate the SemVer 2.0.0 version, increment minor, and reset patch to zero.
Illustrative output:
Syntax constraints & input size limits
Uses the semver library and its range syntax. Invalid JSON falls back to defaults; input defaults can compare 0.0.0 to 0.0.0, so provide explicit versions when results matter.
Data conversions and formatting in SemVer Comparator & Range Checker reflect standard structured syntax. Verify parsed outputs against your target runtime before deployment.
Local client execution boundary
Data parsing and transformations in SemVer Comparator & Range Checker execute in the local browser tab without remote data transmission.
Data format specifications & language standards
Data interchange formats and language grammar specifications:
- Standard Browser Web API / Algorithm Implementation (No single external RFC/ISO standard)
SemVer Comparator & Range Checker verification · Audit standards
How to use it
- Enter JSON with versions and operation: compare, range or a next-* increment.
- Validate SemVer 2.0 versions, then compare, test a range or increment the chosen release part.
- Read JSON comparison/range result or the next version string.
Frequently asked questions
Which SemVer operations does the calculator implement?+
It accepts JSON with compare, range or satisfies, and next-major, next-minor, next-patch, premajor, preminor, prepatch, or prerelease operations. Input versions must pass the bundled semver validator.
What is the verified next-minor result?+
The browser converts {"a":"1.2.3","operation":"next-minor"} to 1.3.0. This is a returned version string, not an assessment of compatibility for a particular package.
How does range checking report a result?+
For range-style operations it validates both the version and range syntax, then returns JSON containing the normalized version, supplied range, and one boolean satisfies result.
Which version formats are rejected or not inferred?+
It does not repair incomplete versions, infer a release type from commits, publish tags, inspect package manifests, or decide whether an API change is breaking. Invalid SemVer input produces an error.