semver
Semantic version parser for Node.js and JavaScript projects.
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is semver?
Semver is a semantic versioning library that provides tools to parse, validate, compare, and manipulate version strings. It's essential for managing software versions in development workflows.
Key differentiator
“Semver is the de facto standard for parsing and validating semver-compliant version strings, deeply integrated into Node.js ecosystems.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
While the primary language is JavaScript, official support for other languages like Python or Java is lacking.
Integrating semver into projects that are not primarily in JavaScript can require additional configuration and third-party libraries.
The official documentation is concise but often does not provide enough context or detailed usage scenarios for complex operations.
When dealing with a large number of version ranges, the performance can degrade significantly due to inefficient range checking algorithms.
Fit analysis
Who is it for?
✓ Best for
JavaScript and TypeScript developers who need to manage and validate semver-compliant version strings
Projects that require precise control over dependency versions in package.json files
✕ Not a fit for
Applications requiring complex versioning schemes beyond semantic versioning
Teams preferring a graphical user interface for managing software versions
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Integrations
Next step
Get Started with semver
Step-by-step setup guide with code examples and common gotchas.