Reddit - Auto Expand Hidden Comments in 2026

This userscript was created by an AI. It will most likely never be updated, so consider it 'as is.'

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 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         Reddit - Auto Expand Hidden Comments in 2026
// @version      1.0.5
// @description  This userscript was created by an AI. It will most likely never be updated, so consider it 'as is.'
// @author       makewebsitesbetter
// @namespace    userscripts
// @icon         https://i.postimg.cc/3NMLffrh/greenbox.png
// @match        *://*.reddit.com/*
// @run-at       document-idle
// @license      MIT
// ==/UserScript==


(function() {
    'use strict';

    function expandComments() {
        const comments = document.querySelectorAll('shreddit-comment[collapsed]');
        comments.forEach(comment => {
            // Set action row height to 32px during loading
            const actionRow = comment.querySelector('shreddit-comment-action-row');
            if (actionRow) {
                actionRow.style.maxHeight = '32px';
                actionRow.style.height = '32px';
            }
            // Remove collapsed attribute to expand the comment
            comment.removeAttribute('collapsed');
        });
    }

    // Observe DOM changes to capture new comments dynamically
    const observer = new MutationObserver((mutations) => {
        mutations.forEach(mutation => {
            if (mutation.addedNodes.length > 0) {
                expandComments();
            }
        });
    });

    // Start observing the document body
    observer.observe(document.body, { childList: true, subtree: true });

    // Initial run to expand comments on page load
    window.addEventListener('load', () => {
        setTimeout(expandComments, 5000); // 5-second delay to allow all elements to load
    });
})();