This script is an easy way to try out and view Wikiwand which displays a clean and modernized version of Wikipedia.
// ==UserScript==
// @name Wikipedia 2 Wikiwand
// @version 2.0
// @run-at document-start
// @description This script is an easy way to try out and view Wikiwand which displays a clean and modernized version of Wikipedia.
// @run-at document-start
// @include https://*.wikipedia.*/*
// @include http://*.wikipedia.*/*
// @exclude http://en.wikipedia.org/wiki/*?oldformat=true
// @exclude https://en.wikipedia.org/wiki/*?oldformat=true
// @author drhouse
// @grant none
// @namespace https://greasyfork.org/users/10118
// ==/UserScript==
var url = document.URL;
var parseA = /^https?:\/\/(\w+)\.wikipedia\.org\/wiki\/([^\?#]+)(\?[^#]+)?(#.+)?/;
var parseB = /^https?:\/\/\w+\.wikipedia\.org\/([\w-]+)\/([^\?#]+)(\?[^#]+)?(#.+)?/;
if (parseA.test(url)) {
window.location.replace(url.replace(parseA, 'https://www.wikiwand.com/$1/$2$4'));
} else if (parseB.test(url)) {
window.location.replace(url.replace(parseB, 'https://www.wikiwand.com/$1/$2$4'));
}