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581 Stars 21 Forks Apache License 2.0 190 Commits 9 Opened issues


ğŸŽ–safely* install packages with npm or yarn by auditing them as part of your install process

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safely* install packages with npm/yarn by auditing them as part of your install process

npm npm codecov Build Status Known Vulnerabilities Security Responsible Disclosure



Media coverage about npq: - Tao Bojlén's A web of trust for npm - Zander's favorite list of command line tools - Ran Bar Zik's npq review to install safe modules - ostechnix's How To Safely Install Packages Using Npm Or Yarn On Linux - debricked's How to evaluate the security of your NPM Package dependencies - JavaScript January advent calendar's post on Open Source From Heaven, Modules From Hell - Liran Tal's Malicious Modules — what you need to know when installing npm packages


Once npq is installed, you can safely* install packages:

npq install express

will perform the following steps to sanity check that the package is safe by employing syntactic heuristics and querying a CVE database:
  • Consult the database of publicly disclosed vulnerabilities to check if a security vulnerability exists for this package and its version.
  • Package age on npm
  • Package download count as a popularity metric
  • Package has a README file
  • Package has a LICENSE file
  • Package has pre/post install scripts

If npq is prompted to continue with the install, it simply hands over the actual package install job to the package manager (npm by default).

safely* - there's no guaranteed safety; a malicious or vulnerable package could still exist that has no security vulnerabilities publicly disclosed and passes npq's checks.


npm install -g npq

Note: we recommend installing with

rather than
. That way,
can automatically install shell aliases for you.


Install packages with npq:

npq install express

Embed in your day to day


is a pre-step to ensure that the npm package you're installing is safe, you can safely embed it in your day-to-day
usage so there's no need to remember to run
alias npm='npq-hero'

Offload to package managers

If you're using

, or generally want to explicitly tell npq which package manager to use you can specify an environment variable:

Example: create an alias with yarn as the package manager:

alias yarn="NPQ_PKG_MGR=yarn npq-hero"


by default will offload all commands and their arguments to the
package manager after it finished its due-diligence for the respective packages.


| Marshall Name | Description | Notes | --- | --- | --- | age | Will show a warning for a package if its age on npm is less than 22 days | Checks a package creation date, not a specific version | downloads | Will show a warning for a package if its download count in the last month is less than 20 | readme | Will show a warning if a package has no README or it has been detected as a security placeholder package by npm staff | scripts | Will show a warning if a package has a pre/post install script which could potentially be malicious | snyk | Will show a warning if a package has been found with vulnerabilities in snyk's database | For snyk to work you need to either have the

npm package installed with a valid api token, or make the token available in the SNYK_TOKEN environment variable, and npq will use it | license | Will show a warning if a package has been found without a license field | Checks the latest version for a license

Disabling Marshalls

To disable a marshall altogether, set an environment variable using with the marshall's shortname.

Example, to disable snyk:

MARSHALL_DISABLE_SNYK=1 npq install express

Using with TravisCI

An example of using lockfile-lint with a

configuration as part of your build:
language: node_js
  - npx lockfile-lint --path package-lock.json --validate-https --allowed-hosts npm
  - yarn install
  - yarn run test


  1. Can I use NPQ without having npm or yarn?
  2. NPQ will audit a package for possible security issues, but it isn't a replacement for npm or yarn. When you choose to continue installing the package, it will offload the installation process to your choice of either npm or yarn.
  3. How is NPQ different from npm audit?
  4. npm install
    will install a module even if it has vulnerabilities; NPQ will display the issues detected, and prompt the user for confirmation on whether to proceed installing it.
  5. NPQ will run synthethic checks, called marshalls, on the characteristics of a module, such as whether the module you are going to install has a
    script which can be potentially harmful for your system and prompt you whether to install it. Whereas
    npm audit
    will not perform any such checks, and only consults a vulnerability database for known security issues.
  6. npm audit
    is closer in functionality to what snyk does, rather than what NPQ does.
  7. Do I require a snyk API key in order to use NPQ?
  8. It's not required. If NPQ is unable to detect a snyk API key for the user running NPQ, then it will skip the database vulnerabilities check. We do, however, greatly encourage you to use snyk, and connect it with NPQ for broader security.


Please consult the CONTRIBUTING for guidelines on contributing to this project


Liran Tal [email protected]

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