Yarn
A JavaScript package manager built for reproducible and stable development environments
- Also known as
- yarn
What is Yarn?
Yarn is a modern package manager for JavaScript projects that prioritizes deterministic installations and includes built-in support for monorepos. It provides a complete solution for managing both dependencies and project structure with a focus on reliability and security.
Yarn pricing
We don't have Yarn's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Yarn does
The capabilities that matter for package registries, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Role
- Package manager client
- Ecosystem / language
- JavaScript
- Deployment
- CLI-local
- Package formats supported
- Many formats
- Private / scoped packages
- ✓
- Upstream proxy / caching
- -
- Lockfile / deterministic installs
- ✓
- Workspaces / monorepo
- ✓
- Content-addressable store
- -
- Supply-chain integrity
- ✓
- Vulnerability / licence scanning
- ✓
- Openness
- Open-source
- Pricing model
- Free / OSS
Platform & deployment
Independently observed- CLI
- macOS
- Linux
- Windows
- Self-hosted
Integrations (3)
Independently observed- GitHub•
- Git•
- npm•
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Yarn FAQ
Common questions about Yarn, answered from independent, dated evidence.
What is Yarn?
Yarn is a package manager that functions as both a package and project manager, supporting everything from simple projects to industry monorepos for open source developers and enterprise users. It is indexed under Package Registries.
Source: https://yarnpkg.com
Is Yarn free to use?
Yarn is open source, so it can be self-hosted and used at no licence cost. It is released under the BSD-2-Clause licence. Pricing changes often, so verify at source before relying on it.
Source: https://yarnpkg.com
What platforms does Yarn support?
Yarn supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://yarnpkg.com
Can Yarn be self-hosted?
Yes. Yarn can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://yarnpkg.com
Is Yarn open source?
Yes. Yarn is published under the BSD-2-Clause licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Source: https://github.com/yarnpkg/berry
Yarn alternatives
Other package registries we track, ranked by the same independent score.
- BunJavaScript runtime that consolidates package management, testing, and bundling into a single command-line toolmedium · 56%
- pnpmA package manager built for speed and minimal disk usagemedium · 65%
- VerdaccioA self-hosted registry for managing private and public Node.js packageshigh · 77%
- RubyGemsA package management tool and public repository for discovering, installing, and publishing Ruby libraries and packageslow · 31%
- uvA fast Python dependency and project managermedium · 63%
- pipA public source of Python software packages that developers can search for, download, and contribute tomedium · 65%
Compare Yarn
Side by side against other package registries, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Yarn, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package downloads | 91 | 0.15 | 13.5 | ✓ |
| Capabilities | 75 | 0.09 | 6.5 | ✓ |
| Release cadence | 89 | 0.07 | 6.0 | ✓ |
| Dependent projects | 69 | 0.07 | 4.7 | ✓ |
| Development activity | 40 | 0.11 | 4.3 | ✓ |
| Security score | 34 | 0.08 | 2.8 | ✓ |
| Stars | 74 | 0.03 | 2.0 | ✓ |
| Integrations | 17 | 0.05 | 0.9 | ✓ |
| Security posture | 0 | 0.18 | 0.0 | - |
| Developer Q&A activity | 0 | 0.05 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 18 | mediumsource · 2026-08-01 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 5 items | mediumsource · 2026-09-10 · 68% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Role: manager_client · Ecosystem: js · Deployment: cli_local · Workspaces: Yes · Open source: oss · Pricing model: free | mediumsource · 2026-10-15 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 3 | mediumsource · 2026-09-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | TypeScript | highsource · 2026-10-15 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | BSD-2-Clause | highsource · 2026-10-15 · 99% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-01 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Scorecard | 3.4 | highsource · 2026-10-15 · 90% |
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=%40yarnpkg%2Fparsers&per_page=100 · Last 12m: 0 | highsource · 2026-08-26 · 90% |
| Trust center | https://yarnpkg.com/features/security | mediumsource · 2026-10-15 · 60% |
Is Yarn the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Yarn against the rest of the package registries we index, using the same dated evidence weighted your way.
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