Yarn

Health v2 · maintenance only

Adoption not part of the score

8101 stars · 1321 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Yarn is a fast, reliable, and secure package manager for JavaScript projects that also acts as a project manager, with features like workspaces, offline caching, deterministic lockfiles, and Plug'n'Play installs. The 1.x line is frozen for maintenance; active development happens in the yarnpkg/berry repository (Yarn 2+).

Use cases

• install javascript dependencies fast and deterministically
• manage a monorepo with workspaces
• make builds reproducible with a lockfile
• install packages offline or with zero-installs
• migrate from npm to a faster package manager
• verify package integrity with checksums
• choose between node_modules, pnpm-style symlinks, or PnP installs

When to choose

• you need deterministic, reproducible installs across machines and CI
• you manage monorepos with workspaces
• you want offline caching, zero-installs, or plugin extensibility
• you want a package manager that reimplements all commands for full control

When to avoid

• you are starting a new project on Yarn 1.x Classic, which is frozen - use Yarn 4+ (berry) instead
• your team is standardized on npm or pnpm and has no need for Yarn-specific features
• you rely on tooling that only supports node_modules layouts and cannot handle PnP

Facets

cli-tool · maturity active

package-manager cli developer-tools dependency-audit developer-tools web-development cli cross-platform javascript npm-registry lockfile workspaces monorepo plugnplay zero-install offline-cache command-line nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="yarnpkg/berry")