Zalgo Word Corruptor

Replaces random words on a webpage with deranged Zalgo text

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Zalgo Word Corruptor
// @namespace    http://scream.from/the.void
// @version      1.0
// @description  Replaces random words on a webpage with deranged Zalgo text
// @match        *://*/*
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  'use strict';

  // Number of words to corrupt per page load (or set to a percentage)
  const NUM_WORDS_TO_ZALGO = 30;

  // Generate Zalgo text
  function zalgo(text) {
    const zalgo_up = [
      '\u030d', '\u030e', '\u0304', '\u0305',
      '\u033f', '\u0311', '\u0306', '\u0310',
      '\u0352', '\u0357', '\u0351', '\u0307',
      '\u0308', '\u030a', '\u0342', '\u0343',
      '\u0344', '\u034a', '\u034b', '\u034c',
      '\u0303', '\u0302', '\u030c', '\u0350',
      '\u0300', '\u0301', '\u030b', '\u030f',
      '\u0312', '\u0313', '\u0314', '\u033d',
      '\u0309', '\u0363', '\u0364', '\u0365',
      '\u0366', '\u0367', '\u0368', '\u0369',
      '\u036a', '\u036b', '\u036c', '\u036d',
      '\u036e', '\u036f', '\u033e', '\u035b',
      '\u0346', '\u031a'
    ];

    return text.split('').map(char => {
      let result = char;
      const count = Math.floor(Math.random() * 6) + 1;
      for (let i = 0; i < count; i++) {
        result += zalgo_up[Math.floor(Math.random() * zalgo_up.length)];
      }
      return result;
    }).join('');
  }

  // Text walker
  const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, null, false);
  let textNodes = [];
  let node;
  while ((node = walker.nextNode())) {
    if (node.nodeValue.trim().length > 0) {
      textNodes.push(node);
    }
  }

  // Shuffle utility
  function shuffle(array) {
    for (let i = array.length - 1; i > 0; i--) {
      const j = Math.floor(Math.random() * (i + 1));
      [array[i], array[j]] = [array[j], array[i]];
    }
  }

  shuffle(textNodes);

  let replaced = 0;
  for (const textNode of textNodes) {
    const words = textNode.nodeValue.split(/\b/);
    let changed = false;
    for (let i = 0; i < words.length; i++) {
      if (/^\w+$/.test(words[i]) && Math.random() < 0.2) { // ~20% chance per word
        words[i] = zalgo(words[i]);
        replaced++;
        changed = true;
        if (replaced >= NUM_WORDS_TO_ZALGO) break;
      }
    }
    if (changed) {
      const newNode = document.createTextNode(words.join(''));
      textNode.parentNode.replaceChild(newNode, textNode);
    }
    if (replaced >= NUM_WORDS_TO_ZALGO) break;
  }
})();