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Semantic Versioning Range Intersection Finder

Developer Tools Versioning calculator range semver
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Semantic Versioning Range Intersection Finder

Find the common version range shared by two semver expressions (supports ^, ~, >=, <=, ||, etc.)

Please enter a valid semver range.
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Please enter a valid semver range.

Frequently Asked Questions

It's the set of versions that satisfy both semver range expressions. For example, >=1.2.0 <2.0.0 and >=1.0.0 <1.3.0 intersect at >=1.2.0 <1.3.0. This tool quickly finds that common ground.

We use the node-semver library (powering npm). This means you can use operators like ^, ~, >, <, =, >=, <=, hyphen ranges (1.0.0 - 1.2.0), X-ranges (1.2.x), and || for unions.

The tool will display a clear warning: "No intersection found". This often happens when one range requires versions above a certain threshold while the other stops below it.

Absolutely. The intersection is calculated directly by the same semver package used by npm. The resulting range string can be safely used in package.json or other node packaging contexts.

Common scenarios: merging dependency constraints from multiple libraries, resolving conflicting peer dependencies, or ensuring a plugin works with specific versions of a host application. It helps pinpoint a safe version window.

The tool expects valid semver range strings. Avoid mixing invalid characters or malformed operators. If you see a validation error, double-check for typos or unsupported syntax. The library handles most edge cases, including pre-release tags.

Need more info? Check the official Semantic Versioning specification or node-semver docs.

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