What is npx?

npx is a utility bundled with npm, designed to run npm packages without installing them into the project or system beforehand.

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#What npx does

1. Runs a package directly from the npm registry

• without npm install
• without adding it to node_modules

2. Can run local binary files

• if a package is already installed in node_modules/.bin, npx will find and run it

3. Convenient for one-off commands

• for example, generators, CLI utilities, and scripts

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#Example

In this case, create-react-app is not installed into the project. It is simply downloaded to a temporary directory, run, and removed.

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#When npx is useful

• to run a CLI utility once without cluttering the project with dependencies
• to run local binaries without specifying the full path
• to always run the latest version of a tool

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#Summary

npx is a tool for conveniently running npm packages "on the fly", without needing to install them globally or locally in the project.