Skip to main content
Castov
Head-to-Head NPM Comparison

npmvsyarn

Detailed package comparison for bundle size, weekly downloads, supply chain security, and license obligations.

Weekly Downloads Leader
npm10.0M/wk
Security Grade Leader
npm100/100
TypeScript Ready
External Types
Specification
npmv12.2.1
yarnv1.22.22
Weekly Downloads10.0MWinner5.3M
Unpacked Size11.85 MB5.09 MB
Security Grade
A+(100/100)
C(65/100)
Lifecycle Scripts Clean (No scripts) Has install scripts
TypeScript SupportCommunity @typesCommunity @types
License TypeArtistic-2.0UNKNOWNBSD-2-ClausePERMISSIVE
Direct Dependencies680
Active Maintainers41
Last ReleaseOct 15, 2026Mar 9, 2024
Install Commandnpm i npmnpm i yarn
Full Security ReportView npm AuditView yarn Audit
Free Castov VS Code Tool

Compare Dependencies Directly in VS Code

Audit supply chain risks, compare lightweight alternative packages, and catch malicious install scripts straight inside your package.json editor.

Download VS Code Extension

More Popular Package Comparisons

react vs vuereact vs angularreact vs sveltevue vs sveltereact vs solid-jspreact vs react

Frequently Asked Questions

Which package is more popular, npm or yarn?
npm is currently more popular with higher weekly downloads (10.0M/week) compared to yarn (5.3M/week).
Which has better supply chain security, npm or yarn?
npm has a security score of 100/100 (Grade A+), while yarn holds 65/100 (Grade C). npm scores higher for supply chain hygiene.
Do npm and yarn provide TypeScript definitions?
npm may require external @types definitions, while yarn may require community @types definitions.
What licenses do npm and yarn use?
npm is published under the Artistic-2.0 license (UNKNOWN), and yarn is licensed under BSD-2-Clause (PERMISSIVE).