Dev workflow and DevOps · Comparison
npm vs pnpm vs Yarn vs Bun
All four install packages from the same npm registry and read the same package.json. They differ in speed, disk use, strictness and what else comes bundled with them.
4 options · 8 questions side by side · updated
| Compare | npm | pnpm | Yarn | Bun |
|---|---|---|---|---|
| What it is | The package manager bundled with Node.js | A fast, disk-saving alternative | An alternative first built at Facebook | A JavaScript runtime with a built-in installer |
| Setup | None, it comes with Node.js | Install it, or enable it with Corepack | Install it, or enable it with Corepack | Install Bun |
| Install speed | Slower than the others | Fast | Fast | Very fast |
| Disk use | A full copy in every project | One shared store, linked into projects | Copies, or no node_modules with Plug'n'Play | A global cache shared by projects |
| Strictness | Loose: undeclared imports often work | Strict: only declared packages resolve | Strict in Plug'n'Play mode | Loose for single apps, strict in new workspaces |
| Lockfile | package-lock.json | pnpm-lock.yaml | yarn.lock | bun.lock |
| Monorepos | Workspaces | Workspaces with strong filtering | Workspaces (Yarn introduced them) | Workspaces |
| Watch out for | Heavy node_modules folders | Tools that assume a flat node_modules | Classic v1 and modern Yarn differ a lot | Younger, with occasional compatibility gaps |
How to choose between npm, pnpm, Yarn and Bun
- Pick npm for zero setup and compatibility with every tool; tutorials assume it.
- Pick pnpm for monorepos or many projects on one machine, where its shared store saves time and disk space.
- Pick Yarn when a project already uses it, and Bun when the project runs on Bun or install speed matters most.
- Switching later is usually a small job: delete node_modules and the old lockfile, then install with the new tool.
The options
- npmnpm is the package manager that comes with Node.js: it downloads the open-source libraries a JavaScript project depends on. npx runs a package's command without installing it first.
- pnpmA fast package manager for JavaScript that stores each package once on your machine and links it into projects, saving time and disk space.
- YarnAn alternative to npm, first released by Facebook in 2016, that installs JavaScript packages from the same registry with its own lockfile and extras.
- BunBackend and APIsA JavaScript and TypeScript runtime that also installs packages, bundles code and runs tests, designed as a drop-in replacement for Node.js.
More comparisons
- Git vs GitHubThe two names are often used as if they meant the same thing. Git is the program that records a project's history on your machine; GitHub is a website that hosts Git repositories and adds collaboration on top.
- Docker vs KubernetesThey are partners more than rivals. Docker packages an app into a container and runs it; Kubernetes runs many containers across a fleet of machines and keeps them healthy.
- ESLint vs PrettierThey answer different questions. ESLint asks whether code is likely to be wrong; Prettier decides how it should look. Most JavaScript projects run both.
- Vercel vs Netlify vs Cloudflare PagesAll three build your site from Git, serve it from a global CDN and give every branch a preview link. They differ in which frameworks they favour, how they bill, and what sits around the hosting.
- Serverless vs VPS vs shared hostingThree very different ways to run the server side of a site. They trade off how much you manage, how costs behave as traffic grows, and what kinds of software you can run.
- AWS vs Google Cloud vs AzureThe three big clouds offer similar building blocks under different names. The choice usually comes down to your team's experience, the ecosystem you already use and a few standout services.
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