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pnpm vs npm (and Yarn, Bun): Which in 2026?
Short answer: Pick npm if you want public and private JavaScript package hosting; pick pnpm if you want lightning-fast installs with minimal disk usage. npm has a free plan, paid from $7/month; pnpm is free and open source.
Which to pick
Pick npm if you want…
- Public and private JavaScript package hosting
Pick pnpm if you want…
- Lightning-fast installs with minimal disk usage
- Efficient package installation
- A free, open-source tool
Written by the DevHunt team · updated Nov 15, 2026
The short answer
npm ships with Node.js and installs every package into a flat node_modules in each project. pnpm installs the same packages from the same registry, but stores each version once on disk and links it into projects, with a strict node_modules where code can only import what it declared. Pick pnpm for monorepos, many projects on one machine, faster repeat installs and catching undeclared dependencies. Stay on npm if you want zero extra tooling and your installs are already fast enough. Yarn and Bun are covered below. Facts are as of November 2026.
pnpm vs npm at a glance
| pnpm | npm | Yarn | bun install | |
|---|---|---|---|---|
| Latest version | 12.21.0 | 12.2.2 | 4.18.1 (Classic: 1.22.22) | Bun 1.4.4 |
| Comes with Node.js | No (install via Corepack or npm) | Yes | No | No (part of the Bun runtime) |
| Disk storage | One global content-addressable store, hard-linked into projects | Full copy in every project | Copy per project, or none with Plug'n'Play | Global cache, copied or linked into node_modules |
| node_modules layout | Symlinked, only direct deps at the root (nodeLinker: hoisted for flat) |
Flat, everything hoisted | Plug'n'Play (no node_modules) or node_modules | Flat by default |
| Undeclared ("phantom") deps | Blocked by default | Allowed | Blocked with PnP | Allowed when flat |
| Workspaces / monorepos | Yes, with filtering (--filter) |
Yes (--workspace) |
Yes | Yes |
| Lockfile | pnpm-lock.yaml | package-lock.json | yarn.lock | bun.lock |
| Registry | npm registry | npm registry | npm registry | npm registry |
Sources: pnpm motivation, pnpm docs, npm docs, Yarn docs, bun install docs. Versions are the latest on the npm registry (npm view <pkg> version).
The differences that matter
Disk space. With npm, 100 projects that use the same dependency keep 100 copies of it. pnpm keeps one copy in its store and hard-links (or copy-on-write clones) the files into each project, and when a new version changes one file, only that file is added. On a laptop with dozens of projects, or a CI cache, this is the biggest practical difference.
Install speed. Because files already in the store are linked instead of downloaded and copied, pnpm's repeat installs are fast. It also pipelines work: each package moves from resolving to fetching to linking as soon as it is ready, instead of npm's approach of finishing each stage for every package first.
Strictness. npm hoists every package to the top of node_modules, so your code can require something you never added to package.json and it works until a transitive dependency changes. pnpm puts only your direct dependencies at the root and symlinks the rest into a hidden .pnpm folder, so those imports fail early. That is the most common source of friction when switching, and the reason to switch.
Monorepos. All four support workspaces, but pnpm's --filter (run a command in one package and its dependents) and the shared store make it the usual pick for large JavaScript monorepos. Yarn's modern line competes here with Plug'n'Play and constraints.
Yarn and Bun in one paragraph. Yarn Classic (1.x) is in maintenance; modern Yarn (4.x) is a different tool built around Plug'n'Play, which drops node_modules for a resolution map. bun install is the installer built into the Bun runtime: npm-compatible, very fast, and usable in plain Node projects, with its own bun.lock.
A concrete example
You have a Next.js app, a shared UI package and an API in one repo. With npm: workspaces in package.json and npm install at the root, with every package hoisted into one flat node_modules. With pnpm: list the packages in pnpm-workspace.yaml, run pnpm install, then pnpm --filter web build builds just the app and the packages it depends on. If the API imports a library that only the UI package declared, pnpm fails the import on day one instead of in production after an upgrade. Moving an existing repo over is pnpm import followed by pnpm install.
Which to pick
- Monorepo or many projects on one machine: pnpm.
- Small project, zero extra tooling, CI already fast: npm.
- You want no node_modules at all (Plug'n'Play): modern Yarn.
- You already use the Bun runtime, or want the fastest installs and accept a younger tool: bun install.
- Existing Yarn Classic project: move to pnpm or modern Yarn rather than staying on 1.x.
More: all code tools, DevOps tools and open-source alternatives.
Side by side
- What it is
- npm:npm is a free package manager and registry for JavaScript packages, with paid plans for private packages and team permissions.
- pnpm:pnpm is a fast, disk-space-efficient package manager that works as a drop-in replacement for npm.
- Best for
- npm:Public and private JavaScript package hosting
- pnpm:Lightning-fast installs with minimal disk usage
- Who it’s for
- npm:JavaScript developers and teams who need to publish and manage packages.
- pnpm:JavaScript/Node.js developers and teams managing monorepos.
- Pricing
- npm:Freemium
- pnpm:Open source
- Starting price
- npm:$7/month (Pro)
- pnpm:Free
- Free plan or trial
- npm:Free plan (Free)
- pnpm:Free to use
- Plans
- npm:Free $0 · Pro $7 per month · Teams $7 per user per month
- pnpm:—
- Open source
- npm:Yes, 10,259 GitHub stars
- pnpm:Yes, 37,084 GitHub stars
npm features
- Unlimited public packages. Publish any number of public packages to the npm Registry.
- Private packages. Pro and Teams plans allow unlimited private package publishing.
- Package-based permissions. Control who can access and modify each package.
- Team-based permissions. Teams plan adds granular team management for package access.
- Security warnings. Automatic security alerts are included for all plans.
pnpm features
- Parallel install pipeline. Resolves, fetches and links packages in parallel for instant installs on a warm store.
- Content-addressable store. Keeps a single copy of each file on disk and hard-links it into every project.
- Workspace support. First-class monorepo handling with a single lockfile and filtered task execution.
- Catalogs. Define a dependency version once and reference it across the workspace to avoid version drift.
- Strict dependency isolation. Only declared dependencies appear in node_modules, preventing silent imports.
- Build script security. Install scripts run only for approved packages, reducing supply-chain attack surface.
- Patch dependencies. Apply persistent patches to packages without waiting for upstream fixes.
- Node.js runtime management. Pin and install specific Node.js versions per project without external tools.
npm vs pnpm FAQ
Is pnpm faster than npm?+
Usually, yes, especially on repeat installs. pnpm keeps every package version once in a global content-addressable store and hard-links (or copy-on-write clones) files into each project, so packages already in the store are not downloaded or copied again. It also runs resolving, fetching and linking per package in parallel instead of finishing each stage for all packages first.
Can I switch from npm to pnpm in an existing project?+
Yes. Run `pnpm import` to turn package-lock.json into pnpm-lock.yaml, delete node_modules, then `pnpm install`. Scripts in package.json work unchanged. If something breaks, it is usually a package that imports a dependency it never declared; npm's flat node_modules hid that. Add the missing dependency, or set `nodeLinker: hoisted` to get an npm-style layout.
Does pnpm work with the npm registry?+
Yes. pnpm, npm, Yarn and Bun all install from the same npm registry and read the same package.json. Only the lockfile and the node_modules layout differ, so you can publish with any of them.
What about Yarn?+
Yarn comes in two lines. Yarn Classic (1.x, latest 1.22.22 on npm) is in maintenance. Modern Yarn (4.x as of November 2026) adds Plug'n'Play, which removes node_modules entirely, plus workspaces and constraints. Choose it if you want PnP; otherwise pnpm gives similar monorepo features with a node_modules layout most tools expect.
Should I use bun install instead?+
If you already run Bun, yes: `bun install` is a very fast npm-compatible installer that reads package.json and works with the npm registry. It also works in plain Node projects. The trade-off is a younger tool, so check that your CI images and any tools that parse lockfiles support bun.lock.
What is the difference between npm and pnpm?+
pnpm is a faster, disk-space-efficient alternative package manager.
Should I use npm or pnpm?+
Pick npm if you want public and private JavaScript package hosting. Pick pnpm if you want lightning-fast installs with minimal disk usage, efficient package installation or a free, open-source tool.
Is npm or pnpm free?+
npm has a free plan; paid plans start at $7/month (Pro). pnpm is free and open source.
Which is cheaper, npm or pnpm?+
pnpm is free, so it costs less. npm starts at $7/month (Pro).
Is npm or pnpm open source?+
Yes, both are open source: npm (npm/cli on GitHub) and pnpm (pnpm/pnpm on GitHub, MIT license).
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.