ChatGPT: button to expand all thoughts [Tampermonkey script]

chatgpt-expand-thoughts.js

// ==UserScript==
// @name         ChatGPT Expand thoughts
// @version      2025-08-11
// @description  useful for expporting chat as html, e.g using SingleFile
// @match        https://chatgpt.com/*
// @icon         https://chatgpt.com/favicon.ico
// @grant        none
// ==/UserScript==

(function () {
    'use strict'

    const $ = s => document.querySelector(s)
    const $$ = s => [...document.querySelectorAll(s)]

    const btn = document.createElement('button')
    btn.textContent = 'Expand thoughts'
    btn.onclick = function () {
        $('button[aria-label="Close sidebar"]')?.click()
        for (let b of $$(`
            article
            span[data-state="closed"]:not(:has(+ .relative.z-0))
            div.relative.w-full.text-start
            button.w-full:not(:disabled)
        `)) {
            b.click()
        }
    }

    function throttle(fn, delay) {
        let pending = false
        return function (...args) {
            if (pending) {
                return
            }
            pending = true
            setTimeout(() => {
                fn.apply(this, args)
                pending = false
            }, delay)
        }
    }

    function ensure() {
        const c = $('nav[aria-label="Chat history"] div.sticky.bottom-0')
        if (c && !c.contains(btn)) {
            c.appendChild(btn)
        }
    }

    ensure = throttle(ensure, 1000)

    new MutationObserver(ensure).observe(
        document.body,
        {
            childList: true,
            subtree: true,
        }
    )

    ensure()
})()