Nuclear Pumpkin Mayhem


    4.0.0 • Public • Published

    ip-filter npm version License Libera Manifesto

    Validates given IPs (IPv4 and IPv6) using micromatch - glob patterns, RegExp, string or array of globs. If match returns the IP, otherwise null.

    Please consider following this project's author, Charlike Mike Reagent, and the project to show your ❤️ and support.

    Code style CircleCI linux build CodeCov coverage status Renovate App Status Make A Pull Request Time Since Last Commit

    If you have any how-to kind of questions, please read the Contributing Guide and Code of Conduct documents. For bugs reports and feature requests, please create an issue or ping @tunnckoCore at Twitter.

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    Project is semantically versioned & automatically released from GitHub Actions with Lerna.

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    Topic Contact
    Any legal or licensing questions, like private or commerical use tunnckocore_legal
    For any critical problems and security reports tunnckocore_security
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    For any questions about Open Source, partnerships and sponsoring tunnckocore_opensource

    Table of Contents

    (TOC generated by verb using markdown-toc)


    This project requires Node.js >=10.13 (see Support & Release Policy). Install it using yarn or npm.
    We highly recommend to use Yarn when you think to contribute to this project.

    $ yarn add ip-filter


    Generated using jest-runner-docs.


    Filter ip against glob patterns, using micromatch under the hood, so options are passed to it.


    function(ip, patterns, options)


    • ip {string} - Accepts only valid IPs by default
    • patterns {string|array} - Basically everything that micromatch's second argument can accept.
    • options {object} - Pass strict: false if want to validate non-ip values, options are also passed to micromatch.
    • returns {string} - a string or null If not match returns null, otherwise the passed ip as string.


    import ipFilter from 'ip-filter';
    console.log(ipFilter('', '123.??.34.8*')); // => ''
    console.log(ipFilter('', '123.??.34.8*')); // => null
    console.log(ipFilter('', ['123.*.34.*', '*.222.33.*'])); // => ''
    // should notice the difference
    console.log(ipFilter('', ['123.*.34.*', '!123.222.**']));
    // => null
    console.log(ipFilter('', ['123.*.34.*', '!123.222.*']));
    // => ''


    import ipFilter from 'ip-filter';
    // NON-STRICT mode
    const res = ipFilter('x-koaip', ['*-koaip', '!foo-koa*'], { strict: false });
    console.log(res); // => 'x-koaip'
    const res = ipFilter('', ['*-koa.*', '!foo-koa.*'], { strict: false });
    console.log(res); // => ''

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    See Also

    Some of these projects are used here or were inspiration for this one, others are just related. So, thanks for your existance!

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    Guides and Community

    Please read the Contributing Guide and Code of Conduct documents for advices.

    For bug reports and feature requests, please join our community forum and open a thread there with prefixing the title of the thread with the name of the project if there's no separate channel for it.

    Consider reading the Support and Release Policy guide if you are interested in what are the supported Node.js versions and how we proceed. In short, we support latest two even-numbered Node.js release lines.

    Support the project

    Become a Partner or Sponsor? 💵 Check the OpenSource Commision (tier). 🎉 You can get your company logo, link & name on this file. It's also rendered on package's page in and sites too! 🚀

    Not financial support? Okey! Pull requests, stars and all kind of contributions are always welcome.


    This project follows the all-contributors specification. Contributions of any kind are welcome!

    Thanks goes to these wonderful people (emoji key), consider showing your support to them:

    Charlike Mike Reagent

    🚇 💻 📖 🤔 🚧 ⚠️

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    Copyright (c) 2015-present, Charlike Mike Reagent <> & contributors.
    Released under the MPL-2.0 License.


    npm i ip-filter

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