patch-package vs pnpm
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
Lets you fix npm dependencies in place and keep those fixes in version control.
Open source · MIT
A fast Node.js package manager that saves disk space by sharing installed packages.
The short answer
Choose patch-package if you need…
- Teams running a Node.js app who need a quick fix to a dependency before the upstream project publishes one
- Developers on npm 5 or later, or yarn v1, who want patches applied on every install
- Projects that want to avoid forking a dependency just to change one file
Choose pnpm if you need…
- Developers working in Node.js projects who want faster installs and less disk use
- Teams maintaining monorepos with multiple packages in one repository
- Projects that need strict dependency declarations to avoid accidental imports
- Developers who want a lockfile for reproducible installs
Side-by-side
| patch-package | pnpm | |
|---|---|---|
| Type | Dev tool | Dev tool |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 11.2k | 37k |
| Setup difficulty | Beginner | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | TypeScript | Rust |
| Last code update | 13 months ago | 4 days ago |
What each one is
patch-package
patch-package is a Node.js tool that lets you edit a file inside a dependency in node_modules, then saves the change as a .patch file. You commit that file to your project, and it is re-applied automatically when npm or yarn installs packages, so your team gets the same fix without waiting for the upstream maintainer to release one.
pnpm
pnpm is a package manager for JavaScript and Node.js projects, the tool that downloads and installs the libraries a project depends on. According to its README, it is fast and disk-efficient because files inside node_modules are linked from a single content-addressable store rather than copied for each project. It also aims to be strict, so a package can only access dependencies listed in its own package.json, and it uses a lockfile (pnpm-lock.yaml) so installs are repeatable.
Best for
patch-package
- Teams running a Node.js app who need a quick fix to a dependency before the upstream project publishes one
- Developers on npm 5 or later, or yarn v1, who want patches applied on every install
- Projects that want to avoid forking a dependency just to change one file
pnpm
- Developers working in Node.js projects who want faster installs and less disk use
- Teams maintaining monorepos with multiple packages in one repository
- Projects that need strict dependency declarations to avoid accidental imports
- Developers who want a lockfile for reproducible installs
Strengths
patch-package
- Fixes can be applied immediately without waiting for a dependency release
- Patch files are plain text diffs stored in the repo, so they are easy to review in git
- Applies automatically through a postinstall script with npm or yarn v1
pnpm
- The README claims up to 2x faster installs than alternatives, with a linked benchmark
- Shares package files from one store across projects, reducing disk usage
- Strict dependency access and a lockfile help keep projects predictable
Not ideal for
patch-package
- Projects on yarn v2+ or pnpm, which the README says have native patching support (yarn patch, pnpm patch), so patch-package is not needed there
- Deployments that install production-only dependencies, unless you follow the dev-only patch steps, because patches to devDependencies may be skipped or throw errors
- Anyone wanting a permanent replacement for contributing a fix upstream; the README presents it as a band-aid
pnpm
- People who need a stable, fully proven tool for critical production use without checking the README's note about the experimental Rust port (pacquet) is not the default CLI, so this is a caveat only if you plan to try it
- Non-developers with no need to install JavaScript libraries
- Projects that depend on behaviour specific to npm or Yarn, since switching package managers can require changes; the README points to a feature comparison page for details
Trade-offs
patch-package
- The README describes it as a band-aid, and patches can fail if the patched dependency changes, requiring manual rework
- Needs extra setup for Heroku, Docker, and CI caching, as the README details
- Dev-only and transitive dependency cases add complexity
pnpm
- Speed and disk claims come from the project's own README; verify on your own projects
- Strict dependency rules can break projects that rely on undeclared packages
- The Rust port (pacquet) is described as experimental
Getting started
patch-package
Add the postinstall script to package.json (edit file)
"postinstall": "patch-package"Install with npm
npm i patch-packageFrequently asked questions
What is the difference between patch-package and pnpm?
patch-package: Lets you fix npm dependencies in place and keep those fixes in version control. pnpm: A fast Node.js package manager that saves disk space by sharing installed packages. patch-package suits teams running a node.js app who need a quick fix to a dependency before the upstream project publishes one, while pnpm suits developers working in node.js projects who want faster installs and less disk use.
Are patch-package and pnpm free?
patch-package: Free and open source. pnpm: Free and open source.
Is patch-package or pnpm more popular?
pnpm has more GitHub stars (37k) than patch-package (11.2k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to patch-package and pnpm?
Other options people compare them with include Poetry, Composer, Madge, delta, Parcel.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.