Validate and generate fake UK national insurance numbers (NINO)

Usage no npm install needed!

<script type="module">
  import fakeNino from 'https://cdn.skypack.dev/fake-nino';



This is a clone of fng-nino-tools just in node.js

A small library providing the ability to validate a UK national insurance number, and generate a fake national insurance number for testing your application.


  npm install fake-nino -g


  // Generate random NINO
  var nino = require('fake-nino');

  // Validate NINO
  if ( nino.validate('EC 55 50 80 A') ) {
  } else {


If you find a bug or are willing to add some enhancement, pull requests are very welcome.

Release History

  • 0.0.1 Initial release


This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.