Semver Range Checker

Overview

• Checks whether a version (e.g. 1.2.4) satisfies a given semver range (e.g. ^1.2.3).
• Useful for checking whether a dependency version specifier in package.json is compatible with a version you have on hand.
• Supports ^ (caret), ~ (tilde), comparators (>=, <, etc.), x-ranges (1.x), hyphen ranges (1.0.0 - 2.0.0), and OR conditions (||).

Usage

1. Enter the version you want to check (e.g. 1.2.4) into the "Version" field.
2. Enter a semver range (e.g. ^1.2.3) into the "Range" field.
3. Click the "Check" button to see whether the version satisfies the range, along with the normalized range.

Example

Version: 1.2.4 / Range: ^1.2.3

Satisfies the range. (Normalized range: >=1.2.3 <2.0.0-0)

Use Cases

• Checking whether a range specifier in package.json's dependencies (such as ^1.2.3) is satisfied by a version you have
• Checking, before upgrading a library, whether a new version falls within an existing range specifier
• Checking what range ^, ~, or an x-range like 1.x actually covers, via the normalized range display

FAQ

Notes

• The version must be entered in proper semver format (major.minor.patch, e.g. 1.2.3). A shorthand like "1.2" is treated as an invalid version.
• Range checking uses the node-semver library (the official npm package), so the result matches what npm itself would determine from package.json.