Run any Node.js version

Run any Node.js version.

This executes a file, command or REPL using a specific Node.js version.

Unlike nvm run it:

• does not need a separate installation step for each Node version
• works on Windows
• does not require Bash
• is installed as a Node module (as opposed to a Bash installation script downloaded with curl )

This executes a single file or command. To run a specific Node.js version for an entire project or shell session, please use nvm , nvm-windows , n or nvs .

Examples

# Same as `node` but with Node 12
$ nve 12
Welcome to Node.js v12.8.0.
Type ".help" for more information.
> .exit

# Same as `node file.js` but with Node 8
$ nve 8 file.js

# Any Node CLI flag can be used
$ nve 8 --print 'process.version'
v8.16.0

# Run a specific version
$ nve 8.10.0 --version
v8.10.0

# Run the latest Node version
$ nve '*' --version
v12.8.0

# Use a version range
$ nve '<8' --version
v7.10.1

Demo

You can try this library:

• either directly in your browser .
• or by executing the examples files in a terminal.

Install

npm install -g nve

node >=8.12.0 must be globally installed. However the command run by nve can use any Node version.

Usage

nve VERSION [ARGS...]

This is exactly the same as:

node [ARGS...]

But using a specific Node version. Any Node CLI flag can be passed.

VERSION can be any version range such as 12 , 12.6.0 or <12 .

The first time nve is run with a new VERSION , the Node binary is downloaded from nodejs.org under the hood. This initially takes few seconds. However subsequent runs are.

Node.js mirror

The binaries are downloaded from https://nodejs.org/dist . You can specify a mirror website using the environment variable NODE_MIRROR .

NODE_MIRROR="https://npm.taobao.org/mirrors/node" nve VERSION [ARGS...]

Benchmarks

The following benchmarks compare the average time to run nve , nvm run and npx -r node :

nve:           68ms
nvm run:      852ms
npx -r node: 1385ms

See also

• get-node : Download Node.js
• normalize-node-version : Normalize and validate Node.js versions
• all-node-versions : List all available Node.js versions
• fetch-node-website : Fetch releases on nodejs.org

Support

If you found a bug or would like a new feature, don't hesitate to submit an issue on GitHub .

For other questions, feel free to chat with us on Gitter .

Everyone is welcome regardless of personal background. We enforce a Code of conduct in order to promote a positive and inclusive environment.

Contributing

This project was made with :heart: . The simplest way to give back is by starring and sharing it online.

If the documentation is unclear or has a typo, please click on the page's Edit button (pencil icon) and suggest a correction.

If you would like to help us fix a bug or add a new feature, please check our guidelines . Pull requests are welcome!

Thanks go to our wonderful contributors:

ehmicky
:computer: :book: Scott Warren