Export ChatGPT to Markdown JS

export-chatgpt-md.js

function h(html) { 
    return html.replace(/<p>/g, '\n\n')
    .replace(/<\/p>/g, '')
    .replace(/<b>/g, '**')
    .replace(/<\/b>/g, '**')
    .replace(/<i>/g, '_')
    .replace(/<\/i>/g, '_')
    .replace(/<code[^>]*>/g, (match) => { 
        const lm = match.match(/class="[^"]*language-([^"]*)"/); 
        return lm ? '\n```' + lm[1] + '\n' : '```'; 
    })
    .replace(/<\/code[^>]*>/g, '```')
    .replace(/<[^>]*>/g, '')
    .replace(/Copy code/g, '')
    .replace(/This content may violate our content policy. If you believe this to be in error, please submit your feedback — your input will aid our research in this area./g, '')
    .trim(); 
} 

(() => { 
    const e = document.querySelectorAll(".text-base");
    let t = "";
    for (const s of e) {
        if (s.querySelector(".whitespace-pre-wrap")) {
            t += `**${s.querySelector('img') ? 'You' : 'ChatGPT'}**: ${h(s.querySelector(".whitespace-pre-wrap").innerHTML)}\n\n`;
        }
    }
    const o = document.createElement("a");
    o.download = "Conversation with ChatGPT.md";
    o.href = URL.createObjectURL(new Blob([t]));
    o.style.display = "none";
    document.body.appendChild(o);
    o.click();
})();