Automatically suggests guesses in Skribbl.io. Fast, easy, and effective.
// ==UserScript==
// @name Skribbl AutoGuesser
// @name:zh-CN Skribbl 自动猜词器
// @name:zh-TW Skribbl 自動猜詞器
// @name:hi Skribbl स्वतः अनुमान स्क्रिप्ट
// @name:es Skribbl Adivinador Automático
// @namespace http://tampermonkey.net/
// @version 1.14
// @description Automatically suggests guesses in Skribbl.io. Fast, easy, and effective.
// @description:zh-CN 自动在 Skribbl.io 中猜词，快速、简单、有效。
// @description:zh-TW 自動在 Skribbl.io 中猜詞，快速、簡單、有效。
// @description:hi Skribbl.io में शब्दों का अनुमान लगाने वाली तेज़ और आसान स्क्रिप्ट।
// @description:es Adivina palabras automáticamente en Skribbl.io de forma rápida y sencilla.
// @author Zach Kosove
// @supportURL https://github.com/zkisaboss/reorderedwordlist
// @match https://skribbl.io/*
// @icon https://skribbl.io/favicon.png
// @grant GM_setValue
// @grant GM_getValue
// @license MIT
// @compatible chrome
// @compatible firefox
// @compatible opera
// @compatible safari
// @compatible edge
// ==/UserScript==
(function() {
"use strict";
const autoGuessLastWord = true;
function createUI() {
document.body.insertAdjacentHTML('beforeend', `
<div id="bottom-ui">
<div id="settings-shelf" class="section">
<button class="ui-btn" id="remaining-guesses">Remaining Guesses: 0</button>
<button class="ui-btn" id="auto-guess">Auto Guess: OFF</button>
<button class="ui-btn" id="export-answers">Export Answers</button>
<button class="ui-btn ui-btn-secondary" id="get-special">Secret</button>
</div>
<div id="guess-shelf" class="section"></div>
<style>
#bottom-ui {
position: fixed;
bottom: 0;
left: 0;
width: 100%;
background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(200, 200, 255, 0.15));
backdrop-filter: blur(30px) saturate(180%);
-webkit-backdrop-filter: blur(30px) saturate(180%);
border-top-left-radius: 24px;
border-top-right-radius: 24px;
border-top: 1px solid rgba(255, 255, 255, 0.25);
border-left: 1px solid rgba(255, 255, 255, 0.1);
border-right: 1px solid rgba(255, 255, 255, 0.1);
box-shadow: 0 -12px 30px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.5);
display: flex;
flex-direction: column;
z-index: 1000;
overflow: hidden;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
transition: transform 0.15s cubic-bezier(0.4, 0, 1, 1);
}
.hidden { transform: translateY(100%); transition: transform 0.15s; }
.section { display: flex; gap: 12px; padding: 14px 24px; overflow-x: auto; }
.section::-webkit-scrollbar { height: 6px; }
.section::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.2); border-radius: 3px; }
.ui-btn {
flex: 0 0 auto;
font-size: 15px;
font-weight: 500;
padding: 10px 18px;
border: 0.5px solid rgba(255, 255, 255, 0.25);
border-radius: 14px;
background: linear-gradient(135deg, rgba(120, 120, 255, 0.5), rgba(100, 100, 230, 0.35));
color: #ffffff;
cursor: pointer;
box-shadow: 0 0 10px rgba(120, 120, 255, 0.5);
transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
}
.ui-btn:hover { background: linear-gradient(135deg, rgba(140, 140, 255, 0.7), rgba(120, 120, 255, 0.6)); }
.ui-btn:active { transform: scale(0.97); }
.ui-btn-secondary { background: linear-gradient(135deg, rgba(255, 120, 255, 0.5), rgba(200, 100, 230, 0.35)); }
.ui-btn-secondary:hover { background: linear-gradient(135deg, rgba(255, 140, 255, 0.7), rgba(220, 120, 240, 0.6)); }
</style>
</div>
`);
const ui = document.getElementById("bottom-ui");
document.addEventListener("keydown", (e) => {
if (e.key === "ArrowDown") ui.classList.add("hidden");
if (e.key === "ArrowUp") ui.classList.remove("hidden");
});
}
createUI();
const correctAnswers = GM_getValue("correctAnswers", []);
async function fetchWords(url) {
const response = await fetch(url);
if (!response.ok) return [];
const text = await response.text();
return text.split('\n').filter(word => word !== '');
}
async function fetchAndStoreLatestWordlist() {
const words = await fetchWords("https://raw.githubusercontent.com/zkisaboss/reorderedwordlist/main/wordlist_test.txt");
const correctSet = new Set(correctAnswers); // ✅ fast O(1) lookups
words.forEach(word => {
if (!correctSet.has(word)) correctAnswers.push(word);
});
GM_setValue("correctAnswers", correctAnswers);
}
fetchAndStoreLatestWordlist();
let myUsername = '';
function findUsername() {
const target = document.querySelector(".players-list");
if (!target) return;
const observer = new MutationObserver(() => {
myUsername = document.querySelector(".me").textContent.replace(" (You)", '')
observer.disconnect();
});
observer.observe(target, { childList: true });
}
findUsername();
function observeDrawingTurn() {
const target = document.querySelector(".words");
if (!target) return;
const observer = new MutationObserver(() => {
target.childNodes.forEach(word => {
const text = word.textContent.toLowerCase();
if (!correctAnswers.includes(text)) {
correctAnswers.push(text);
GM_setValue("correctAnswers", correctAnswers);
}
});
});
observer.observe(target, { childList: true });
}
observeDrawingTurn();
const remainingButton = document.getElementById("remaining-guesses");
const guessShelf = document.getElementById("guess-shelf");
let possibleWords = [];
const input = document.querySelector('#game-chat input[data-translate="placeholder"]');
function renderGuesses(words) {
guessShelf.innerHTML = '';
remainingButton.textContent = `Remaining Guesses: ${possibleWords.length}`;
words.forEach(word => {
const button = Object.assign(document.createElement("button"), {
className: "ui-btn",
textContent: word,
onclick: () => {
input.value = word;
input.closest("form").dispatchEvent(new Event("submit", { bubbles: true, cancelable: true }));
}
});
guessShelf.appendChild(button);
});
};
function generateGuesses() {
if (possibleWords.length === 1 && autoGuessLastWord) {
input.value = possibleWords.shift();
input.closest("form").dispatchEvent(new Event("submit", { bubbles: true, cancelable: true }));
}
const pattern = input.value.toLowerCase().trim();
const words = possibleWords.filter(word => word.startsWith(pattern));
renderGuesses(words);
}
function observeInput() {
input.addEventListener("input", generateGuesses);
input.addEventListener("keydown", ({ key }) => {
if (key === "Enter") {
input.value = guessShelf.firstElementChild?.innerText ?? input.value;
input.closest("form").dispatchEvent(new Event("submit", { bubbles: true, cancelable: true }));
}
});
}
observeInput();
function storeAnswer(word) {
word = word.toLowerCase();
const i = correctAnswers.indexOf(word);
if (i < 0) {
correctAnswers.push(word);
} else {
const j = (i - 1) & ~((i - 1) >> 31); // same as (i == 0 ? i : i - 1)
const tmp = correctAnswers[i];
correctAnswers[i] = correctAnswers[j];
correctAnswers[j] = tmp;
}
GM_setValue("correctAnswers", correctAnswers);
return [];
}
function filterHints(inputWords) {
const hints = Array.from(document.querySelectorAll(".hints .hint"));
const combined = hints.map(hint => hint.textContent === '_' ? "[a-z]" : hint.textContent).join('');
if (hints.every(hint => hint.classList.contains("uncover"))) {
return storeAnswer(combined);
}
const regex = new RegExp(`^${combined}$`, 'i');
return inputWords.filter(word => regex.test(word));
}
function observeHints() {
const target = document.querySelector(".hints .container");
if (!target) return;
const observer = new MutationObserver(() => {
possibleWords = filterHints(possibleWords);
generateGuesses();
});
observer.observe(target, { childList: true, subtree: true });
}
observeHints();
// Levenshtein: O(n⋅m) time, O(n⋅m) space
// https://youtu.be/Dd_NgYVOdLk
/*
function levenshteinDistance(a, b) {
const matrix = [];
for (let i = 0; i <= b.length; i++) matrix[i] = [i];
for (let j = 0; j <= a.length; j++) matrix[0][j] = j;
for (let i = 1; i <= b.length; i++) {
for (let j = 1; j <= a.length; j++) {
matrix[i][j] = Math.min(
matrix[i - 1][j] + 1,
matrix[i][j - 1] + 1,
matrix[i - 1][j - 1] + (b[i - 1] !== a[j - 1])
);
}
}
return matrix[b.length][a.length];
}
*/
// Banded Levenshtein: O(n⋅min(m,2k+1)) time, O(m) space
// https://www.baeldung.com/cs/levenshtein-distance-computation
function levenshteinDistance(a, b, k = 1) {
// Ensure |a| ≤ |b| ⇒ reduce memory via symmetry of d(a,b)
if (a.length > b.length) {
let tmp = a;
a = b;
b = tmp;
}
let m = a.length; // |a|
let n = b.length; // |b|
// If |n − m| > k ⇒ d(a,b) > k (impossible within band)
if (n - m > k) return -1;
// === Prefix/Suffix Trimming ===
let start = 0;
while (start < m && a[start] === b[start]) ++start;
let endA = m - 1, endB = n - 1;
while (endA >= start && a[endA] == b[endB]) --endA, --endB;
m = endA - start + 1;
n = endB - start + 1;
// If m′ = 0 ⇒ d(a,b) = n′ (if ≤ k [implicit])
if (m === 0) return n;
// === Initialization ===
// const D0 = new Uint8Array(m + 1);
// for (let j = 0; j <= m; j++) D0[j] = j; // base cost of inserting j chars
// const D = [D0, new Uint8Array(m + 1)];
// === Allocate one contiguous block ===
const buf = new Uint8Array((m + 1) * 2);
// === Fixed-row views (no dynamic array object overhead) ===
const D0 = buf.subarray(0, m + 1);
for (let j = 0; j <= m; j++) D0[j] = j;
const D1 = buf.subarray(m + 1, (m + 1) * 2);
// === Dynamic Programming ===
let curr, prev;
for (let i = 1; i <= n; i++) {
if (i & 1) { curr = D1; prev = D0; }
else { curr = D0; prev = D1; }
// Band bounds ⇒ j ∈ [i−k, i+k] (clamped to [1,m] for valid indexing)
let lo = i - k; if (lo < 1) lo = 1;
let hi = i + k; if (hi > m) hi = m;
// Left boundary ⇒ D(i, lo−1) = i (cost of deleting i chars)
curr[lo - 1] = i;
let rowMin = k + 1;
const bᵢ = b[start + i - 1];
for (let j = lo; j <= hi; j++) {
const aⱼ = a[start + j - 1];
const cost = (aⱼ == bᵢ) ? 0 : 1;
const val = Math.min(
curr[j - 1] + 1, // insertion
prev[j] + 1, // deletion
prev[j - 1] + cost // substitution
);
curr[j] = val;
if (val < rowMin) rowMin = val;
}
if (rowMin > k) return -1;
}
const distance = ((n & 1) ? D1 : D0)[m];
if (distance > k) return -1;
return distance;
}
let previousWords = [];
function handleChatMessage(messageNode) {
const messageColor = window.getComputedStyle(messageNode).color;
const message = messageNode.textContent;
if (messageColor === "rgb(57, 117, 206)" && message.endsWith("is drawing now!")) {
possibleWords = filterHints(correctAnswers);
}
else if (message.includes(": ")) {
const [username, guess] = message.split(": ");
possibleWords = possibleWords.filter(word => word !== guess);
previousWords = possibleWords;
if (username === myUsername) {
possibleWords = possibleWords.filter(word => levenshteinDistance(word, guess) === -1);
}
}
else if (messageColor === "rgb(226, 203, 0)" && message.endsWith("is close!")) {
const closeWord = message.replace(" is close!", '');
possibleWords = previousWords.filter(word => levenshteinDistance(word, closeWord) === 1);
}
else return;
generateGuesses();
}
function observeChat() {
const target = document.querySelector(".chat-content");
if (!target) return;
const observer = new MutationObserver(() => {
handleChatMessage(target.lastElementChild);
});
observer.observe(target, { childList: true });
}
observeChat();
let autoGuessInterval;
let autoGuessing = false;
function startAutoGuessing() {
if (!autoGuessing) return;
autoGuessInterval = setInterval(() => {
if (possibleWords.length > 0) {
input.value = possibleWords.shift();
input.closest("form").dispatchEvent(new Event("submit", { bubbles: true, cancelable: true }));
}
}, 3500);
}
startAutoGuessing();
const autoGuessButton = document.getElementById("auto-guess");
function toggleAutoGuessing() {
autoGuessing = !autoGuessing;
autoGuessButton.innerHTML = `Auto Guess: ${autoGuessing ? "ON" : "OFF"}`;
if (autoGuessing) {
startAutoGuessing();
} else {
clearInterval(autoGuessInterval);
autoGuessInterval = null;
}
}
autoGuessButton.addEventListener("click", toggleAutoGuessing);
async function exportNewWords() {
const old = await fetchWords("https://raw.githubusercontent.com/zkisaboss/reorderedwordlist/main/wordlist.txt");
const data = correctAnswers.filter(word => !old.includes(word));
const anchor = Object.assign(document.createElement('a'), {
href: URL.createObjectURL(new Blob([data.join('\n').trim()], { type: "text/plain" })),
download: "newWords.txt"
});
document.body.appendChild(anchor);
anchor.click();
anchor.remove();
}
const exportButton = document.getElementById("export-answers");
exportButton.addEventListener("click", exportNewWords);
const secretButton = document.getElementById("get-special");
function runSecret() {
const avatars = document.querySelectorAll(".avatar-container .avatar");
const interval = setInterval(() => {
let allSecretsVisible = true;
avatars.forEach(avatar => {
const secret = avatar.querySelector(".special");
if (getComputedStyle(secret).display === "none") {
avatar.click();
allSecretsVisible = false;
}
});
if (allSecretsVisible) clearInterval(interval);
}, 15);
}
secretButton.addEventListener("click", runSecret);
function observeSecret() {
const target = document.getElementById("home");
if (!target) return;
const observer = new MutationObserver(() => {
secretButton.style.display = target.hasAttribute("style") ? "none" : "inline-block";
});
observer.observe(target, { attributes: true, attributeFilter: ["style"] });
}
observeSecret();
})();