npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2025 – Pkg Stats / Ryan Hefner

npmvet

v0.2.1

Published

A simple CLI tool for vetting npm package versions

Downloads

1,625

Readme

Build status

NPM Vet is a simple CLI tool to help vet your npm package versions. NPM Vet can be used locally, or as a CI build-step to prevent builds passing with mismatched package versions. To read more about NPM Vet, visit the Hark website.

Installation

$ npm install npmvet -g

Usage

Usage: npmvet [options]

Options:

  -h, --help                 output usage information
  -V, --version              output the version number
  -p, --package <package>    package.json file location (Default: .)
  -m, --modules <modules>    node_modules folder location (Default: .)
  -r, --renderer <renderer>  Renderer to use (Default: inlinetable)
  -s, --strict               Using the CI renderer, fail build if any packages unlocked (Default: false, flag)

Strict Mode

If you're using the CI renderer (see below) the -s flag will enable strict mode. In which builds will fail if versions are unlocked, not just unmatching.

Renderers

Renderers are used to dictate how to output the data NPM Vet collects. The default is inlinetable.

Inline Table

$ npmvet -r inlinetable

The default renderer, inlinetable will print a table inline with your current process. You can use this locally to visualise package differences.

CI

$ npmvet -r ci

To prevent your CI builds passing with mismatched package versions, use the CI renderer. If any package version mismatches are found, the build will fail:

Or if there are no mismatching package versions, your build will continue (and hopefully pass!):

Blessed

The blessed renderer will render a table inside a screen, that has be exited by the user to escape.

$ npmvet -r blessed

JSON

The JSON renderer will print a JSON array with match information for each package.

$ npmvet -r json
[
  {
    "name": "blessed",
    "packageVersion": "0.1.81",
    "installedVersion": "0.1.81",
    "matches": true,
    "locked": false
  },
  {
    "name": "chalk",
    "packageVersion": "1.1.3",
    "installedVersion": "1.1.3",
    "matches": true,
    "locked": false
  },
  {
    "name": "jest",
    "packageVersion": "18.1.0",
    "installedVersion": "18.1.0",
    "matches": true,
    "locked": false
  }
]

Contributing

For information regarding contributing to this project, please read the Contributing document.

License

MIT License