SemVer calculator

SemVer calculator. Parse, compare, and validate semantic version strings. Validate and compare semantic versioning strings instantly with our free online semver calculator.

This essential tool for software developers, devops engineers, and release managers helps you quickly determine version precedence and compatibility according to the official SemVer 2.0.0 specification.

Whether you are managing complex dependencies in NPM, Composer, Cargo, or Maven, our calculator ensures your version ranges and lockfiles are always accurate and predictable.

Simply enter two version strings to see which one is newer and understand how they compare across major, minor, and patch segments.

This premium semantic versioning tool supports full parsing of pre-release tags (like alpha, beta, rc), build metadata, and complex range comparisons, ensuring your software dependency management is precise and error-free.

Manually comparing version strings like '1.2.3-alpha.1' and '1.2.3-beta.2' can be error-prone, but our visual calculator handles the logic for you, making versioning decisions faster and more reliable.

We provide a 100% free, private, and secure way to calculate semantic versions right in your browser without any data leaving your device. Related tools: Continue the workflow with Git cheatsheet, Docker run to Docker compose converter, Chmod calculator.

These related tools help with adjacent conversion, formatting, validation, generation, and cleanup tasks.

How to use this online tool

SemVer calculator is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

SemVer calculator keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use SemVer calculator for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.