Greasy Fork is available in English.
it will disable Google SafeSearch automatically
// ==UserScript==
// @name Disable Google SafeSearch automatically
// @namespace Disable Google SafeSearch automatically
// @author Rishabh
// @include https://www.google.*/search*
// @include https://www.google.*/imgres*
// @run-at document-start
// @description it will disable Google SafeSearch automatically
// @version 1.02
// @grant none
// ==/UserScript==
var url = window.location.href;
var safe = "&safe=off";
if(url.indexOf(safe) == -1){
url += safe;
window.location = url;
}