Gemini Chat Exporter

Export Gemini conversations as Markdown with accurate formatting and timestamps.

スクリプトをインストールするには、Tampermonkey, GreasemonkeyViolentmonkey のような拡張機能のインストールが必要です。

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

スクリプトをインストールするには、TampermonkeyViolentmonkey のような拡張機能のインストールが必要です。

スクリプトをインストールするには、TampermonkeyUserscripts のような拡張機能のインストールが必要です。

このスクリプトをインストールするには、Tampermonkeyなどの拡張機能をインストールする必要があります。

このスクリプトをインストールするには、ユーザースクリプト管理ツールの拡張機能をインストールする必要があります。

(ユーザースクリプト管理ツールは設定済みなのでインストール!)

このスタイルをインストールするには、Stylusなどの拡張機能をインストールする必要があります。

このスタイルをインストールするには、Stylus などの拡張機能をインストールする必要があります。

このスタイルをインストールするには、Stylus tなどの拡張機能をインストールする必要があります。

このスタイルをインストールするには、ユーザースタイル管理用の拡張機能をインストールする必要があります。

このスタイルをインストールするには、ユーザースタイル管理用の拡張機能をインストールする必要があります。

このスタイルをインストールするには、ユーザースタイル管理用の拡張機能をインストールする必要があります。

(ユーザースタイル管理ツールは設定済みなのでインストール!)

このスクリプトの質問や評価の投稿はこちら通報はこちらへお寄せください
// ==UserScript==
// @name                 Gemini Chat Exporter
// @name:zh-CN           Gemini 对话导出工具
// @description          Export Gemini conversations as Markdown with accurate formatting and timestamps.
// @description:zh-CN    深度优化排版,高保真还原 Gemini 聊天的标题、代码块、表格和公式。
// @namespace            https://github.com/AstridStark25963/gemini-chat-exporter/
// @version              1.2.0
// @author               AstridStark25963
// @license              MIT
// @icon                 data:image/svg+xml;base64,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
// @include              *://gemini.google.com/*
// @run-at               document-idle
// @grant                GM_addStyle
// ==/UserScript==

(function () {
    'use strict';

    GM_addStyle(`
        .gemini-export-circle-btn {
            position: fixed; right: 25px; bottom: 80px; z-index: 999999 !important;
            width: 48px; height: 48px; border-radius: 50%;
            background: #1a73e8; color: #fff; border: none;
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            transition: all 0.2s ease-in-out;
        }
        .gemini-export-circle-btn:hover:not(:disabled) {
            background: #1557b0; transform: scale(1.1);
        }
        .gemini-export-circle-btn:disabled {
            background: #5f6368; cursor: not-allowed; transform: scale(1); opacity: 0.8;
        }
        .gemini-export-icon { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
        
        @keyframes gemini-spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        .gemini-loading-icon {
            animation: gemini-spin 1s linear infinite;
        }
    `);

    const MarkdownParser = {
        parseNode: function(node) {
            if (node.nodeType === 3) return node.nodeValue;
            if (node.nodeType === 1) {
                const text = node.textContent.trim();
                
                if (text === "Export to Sheets" || text === "Export to Google Sheets" || text === "content_copy") return "";

                if (node.classList.contains('generated-image-controls') || node.classList.contains('export-sheets-button-container')) return "";

                if (node.tagName === 'PROCESSING-STATE' || node.classList.contains('extension-processing-state')) return "";

                if (node.tagName === 'SOURCES-LIST' || node.classList.contains('sources-list')) return "";

                if (node.tagName === 'USER-NOTICE' || node.classList.contains('user-notice')) return "";

                if (node.classList.contains('model-thoughts')) {
                    const contentNode = node.querySelector('[data-test-id="thoughts-content"]');
                    if (contentNode) {
                        const thoughtText = this.parseChildren(contentNode).trim();
                        const formatted = thoughtText.split('\n').map(line => `> ${line}`).join('\n');
                        return `> **🤔 Gemini Thinking:**\n>\n${formatted}\n\n`;
                    }
                    return "";
                }

                if (node.tagName === 'YOUTUBE-BLOCK') {
                    const titleEl = node.querySelector('.tool-attribution-title span');
                    const subtitleEl = node.querySelector('.tool-attribution-label');
                    const iframe = node.querySelector('iframe');
                    
                    if (titleEl && iframe) {
                        const title = titleEl.textContent.trim();
                        const subtitle = subtitleEl ? subtitleEl.textContent.trim() : "";
                        const src = iframe.getAttribute('src') || "";
                        const match = src.match(/\/embed\/([^?&]+)/);
                        const videoId = match ? match[1] : "";
                        const url = videoId ? `https://www.youtube.com/watch?v=${videoId}` : "";
                        const titleLink = url ? `[${title}](${url})` : title;

                        return `\n> ▶️ **YouTube**\n>\n> - **${titleLink}**\n>   ${subtitle}\n>\n`;
                    }
                }

                if (node.tagName === 'ACTION-CARD') {
                    const serviceNameEl = node.querySelector('.tool-display-name');
                    
                    if (serviceNameEl) {
                        const serviceName = serviceNameEl.textContent.trim();
                        let emoji = "📱";
                        let baseUrlTemplate = "";

                        if (serviceName === "YouTube Music") {
                            emoji = "🎵";
                            baseUrlTemplate = "https://music.youtube.com/search?q=";
                        } else if (serviceName === "Google Keep") {
                            emoji = "💡";
                            baseUrlTemplate = "https://keep.google.com/#search/text/";
                        } else if (serviceName === "Google Tasks") {
                            emoji = "✅";
                            baseUrlTemplate = "tasks";
                        } else if (serviceName === "Google Calendar") {
                            emoji = "📅";
                            baseUrlTemplate = "calendar";
                        }

                        let mdString = `\n> ${emoji} **${serviceName}**\n> \n`;
                        
                        const actions = node.querySelectorAll('action');
                        actions.forEach(action => {
                            const titleEl = action.querySelector('.primary-text');
                            
                            if (titleEl) {
                                const title = this.parseChildren(titleEl).trim();
                                
                                let searchUrl = "";
                                if (baseUrlTemplate === "tasks") {
                                    searchUrl = "https://tasks.google.com/";
                                } else if (baseUrlTemplate === "calendar") {
                                    searchUrl = "https://calendar.google.com/";
                                } else if (baseUrlTemplate) {
                                    searchUrl = baseUrlTemplate + encodeURIComponent(title);
                                }

                                const titleLink = searchUrl ? `[${title}](${searchUrl})` : title;
                                mdString += `> - **${titleLink}**\n`;
                                
                                const detailNodes = action.querySelectorAll('.secondary-text, .location, .notes');
                                detailNodes.forEach(detailEl => {
                                    const detailText = this.parseChildren(detailEl).trim();
                                    if (detailText) {
                                        mdString += `>   ${detailText}\n`;
                                    }
                                });
                            }
                        });
                        
                        mdString += `\n`;
                        return mdString;
                    }
                }

                const mathTex = node.getAttribute('data-math');
                if (mathTex) {
                    const isBlock = node.classList.contains('math-display') || node.tagName === 'DIV'; 
                    return isBlock ? `\n$$\n${mathTex}\n$$\n` : `$${mathTex}$`;
                }
                
                if (node.tagName === 'ANNOTATION' && node.getAttribute("encoding") === "application/x-tex") {
                     return `$${node.textContent.trim()}$`;
                }
            }

            switch (node.nodeName) {
                case "H1": case "H2": case "H3":
                    const level = node.nodeName.substring(1);
                    const hText = this.parseChildren(node).trim();
                    if (!hText || hText === "Gemini said" || hText === "You said") return "";
                    return `\n${"#".repeat(parseInt(level) + 2)} ${hText}\n`;
                
                case "P": return `\n${this.parseChildren(node).trim()}\n`;
                case "STRONG": case "B": return `**${this.parseChildren(node).trim()}**`;
                case "EM": case "I": return `*${this.parseChildren(node).trim()}*`;
                
                case "A":
                    const href = node.getAttribute("href");
                    const linkText = this.parseChildren(node).trim();
                    if (!href || href.startsWith('javascript:') || href === "#") return linkText;
                    return `[${linkText}](${href})`;
                
                case "CODE":
                    return node.closest('pre') ? node.textContent : `\`${node.textContent}\``;
                
                case "CODE-BLOCK":
                    const langSpan = node.querySelector('span');
                    const lang = langSpan ? langSpan.textContent.trim() : "";
                    const codeContent = node.querySelector('pre')?.textContent || "";
                    return `\n\`\`\`${lang}\n${codeContent.trim()}\n\`\`\`\n`;
                case "PRE":
                    if (node.closest('code-block')) return "";
                    return `\n\`\`\`\n${node.textContent.trim()}\n\`\`\`\n`;
                
                case "UL": return `\n${this.parseChildren(node)}\n`;
                case "OL":
                    let olText = "\n";
                    Array.from(node.children).forEach((li, i) => {
                        if(li.nodeName === "LI") olText += `${i+1}. ${this.parseChildren(li).trim()}\n`;
                    });
                    return olText;
                case "LI": return `- ${this.parseChildren(node).trim()}\n`;
                case "BLOCKQUOTE": return `\n> ${node.textContent.trim()}\n`;
                
                case "TABLE": return `\n${this.parseTable(node)}\n`;
                
                case "BR": return "\n";
                case "SCRIPT": case "STYLE": return "";
                case "MAT-ICON": return "";
                
                default: return this.parseChildren(node);
            }
        },
        parseChildren: function(node) {
            let res = "";
            node.childNodes.forEach(child => res += this.parseNode(child));
            return res;
        },
        parseTable: function(table) {
            let md = "";
            const rows = Array.from(table.querySelectorAll("tr"));
            rows.forEach((tr, i) => {
                const cells = Array.from(tr.querySelectorAll("th, td")).map(c => {
                    let cellContent = this.parseChildren(c).trim();
                    return cellContent.replace(/\|/g, "\\|").replace(/\n/g, "<br>"); 
                });
                
                md += `| ${cells.join(" | ")} |\n`;
                if (i === 0) md += `| ${cells.map(() => "---").join(" | ")} |\n`;
            });
            return md;
        }
    };

    const Manager = {
        getChatTitle: function() {
            const titleEl = document.querySelector('[data-test-id="conversation-title"]');
            return titleEl?.textContent.trim() || "Gemini Chat";
        },

        getFileName: function(title) {
            const now = new Date();
            const ts = `${now.getFullYear()}${String(now.getMonth()+1).padStart(2,'0')}${String(now.getDate()).padStart(2,'0')}_${String(now.getHours()).padStart(2,'0')}${String(now.getMinutes()).padStart(2,'0')}${String(now.getSeconds()).padStart(2,'0')}`;
            return `${title.replace(/[\/\\?%*:|"<>]/g, '_')}_${ts}.md`;
        },

        getScroller: function() {
            const msg = document.querySelector('user-query-content');
            if (msg) {
                let el = msg.parentElement;
                while (el && el.tagName !== 'BODY') {
                    const style = window.getComputedStyle(el);
                    if (style.overflowY === 'auto' || style.overflowY === 'scroll') return el;
                    el = el.parentElement;
                }
            }
            return document.documentElement;
        },

        autoScrollToTop: async function() {
            const scroller = this.getScroller();
            if (!scroller) return;
            
            return new Promise((resolve) => {
                let lastHeight = scroller.scrollHeight;
                let stableCount = 0;
                const maxStableCount = 10;
                const checkInterval = 200;

                const timer = setInterval(() => {
                    scroller.scrollTop = 0;
                    const currentHeight = scroller.scrollHeight;

                    if (currentHeight > lastHeight) {
                        lastHeight = currentHeight;
                        stableCount = 0;
                    } else {
                        stableCount++;
                    }

                    if (stableCount >= maxStableCount) {
                        clearInterval(timer);
                        resolve();
                    }
                }, checkInterval);
            });
        },

        run: async function() {
            const btn = document.getElementById("gemini-export-final");
            const originalIcon = `<svg class="gemini-export-icon" viewBox="0 0 24 24"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M7 10l5 5 5-5M12 15V3"/></svg>`;
            
            btn.disabled = true;
            btn.innerHTML = `<svg class="gemini-export-icon gemini-loading-icon" viewBox="0 0 24 24"><path d="M12 2v4m0 12v4M4.93 4.93l2.83 2.83m8.48 8.48l2.83 2.83M2 12h4m12 0h4M4.93 19.07l2.83-2.83m8.48-8.48l2.83-2.83"/></svg>`;
            
            try {
                await this.autoScrollToTop();

                const queries = document.querySelectorAll("user-query-content");
                const responses = document.querySelectorAll("model-response");
                
                if (!queries.length) {
                    alert("Didn't find any conversations to export. Please make sure you're on a conversation page and try again.");
                    return;
                }

                const chatTitle = this.getChatTitle();
                let output = `# ${chatTitle}\n\n---\n\n`;

                for (let i = 0; i < queries.length; i++) {
                    const q = MarkdownParser.parseChildren(queries[i]).replace(/You said/g, "").trim();
                    output += `## 👤 User\n${q}\n\n`;

                    if (responses[i]) {
                        const a = MarkdownParser.parseChildren(responses[i]).replace(/Gemini said/g, "").trim();
                        output += `## 🤖 Gemini\n${a}\n\n---\n\n`;
                    }
                }

                const blob = new Blob([output], { type: "text/markdown" });
                const a = document.createElement("a");
                a.href = URL.createObjectURL(blob);
                a.download = this.getFileName(chatTitle);
                a.click();

            } catch (e) {
                console.error("Export failed:", e);
                alert("Export failed. Please check the console for more details.");
            } finally {
                btn.disabled = false;
                btn.innerHTML = originalIcon;
            }
        }
    };

    function init() {
        if (document.getElementById("gemini-export-final")) return;
        const btn = document.createElement("button");
        btn.id = "gemini-export-final";
        btn.className = "gemini-export-circle-btn";
        btn.innerHTML = `<svg class="gemini-export-icon" viewBox="0 0 24 24"><path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M7 10l5 5 5-5M12 15V3"/></svg>`;
        btn.onclick = () => Manager.run();
        document.documentElement.appendChild(btn);
    }

    if (window.trustedTypes && !window.trustedTypes.defaultPolicy) {
        window.trustedTypes.createPolicy('default', { createHTML: (s) => s });
    }
    setInterval(init, 2000);
})();