# MemBrain - AI 第二大脑 根据 OpenAITools.app 于 2026-11-11 核对的流量数据，MemBrain - AI 第二大脑（chromewebstore.google.com）是一个收录在 AI 知识管理下的 AI 平台，月访问量为 0，月度环比流量变化为 +0（0.0%）。其主要地理市场为全球（— 流量份额），采用免费定价模式。按月流量计算的主要竞争替代方案包括 mymind（22.18万次访问/月），Merlin AI（138.26万次访问/月），Sider（264.47万次访问/月）。 一款开源的 Chrome 侧边栏扩展，让你在浏览网页时与自选的 AI 模型对话。 ## 关键遥测与规格 | 指标 | 数值 | | :--- | :--- | | 工具名称 | MemBrain - AI 第二大脑 | | 标识 | membrain | | Status | active | | Origin | open_source | | Maintenance | active | | 官方域名 | chromewebstore.google.com | | 官网地址 | https://chromewebstore.google.com/detail/membrain/eknbepndjmjchcbbcadobcmdnikkkbdg | | 分类 | AI 知识管理, AI 笔记工具, AI Productivity Tools, AI 助手 | | 定价模式 | 免费 | | 月访问量 | 0 | | 月度环比流量变化 | 0 | | 月度环比增长率 | — | | 主要市场 | 全球 | | 市场份额 | — | | 直接访问量 | 0 | | 自然搜索访问 | 0 | | 社交访问 | 0 | | 推荐访问 | 0 | | 邮件访问 | 0 | | 评价得分 | 3.8 | | 收藏数 | 0 | | 支持平台 | 浏览器扩展 | | 计费平台 | | | 属性 | 功能: 浏览器扩展; 定价: 定价请咨询 | | 标签 | 第二大脑, 知识管理, AI, 笔记记录, 学习, 记忆, 整理归类, 生产力, 个人知识管理（PKM） | ## 概览 MemBrain 是一款把 AI 助手放进浏览器侧边栏的 Chrome 扩展。你不必切换到某个聊天网站，只要打开侧边栏，就能在阅读的页面旁边直接与 AI 模型对话。它定位为面向研究与浏览的轻量级 ## 定价与套餐 Free. MemBrain itself is a free, open-source Chrome extension; costs come from the AI provider API usage you pay for directly with your own API keys. ## 关键功能与能力 - **AI chat in the Chrome side panel:** Open an AI chat alongside the page you are reading, without navigating away or switching tabs. - **Web pages and text as context:** Attach one or more pages, or selected passages, as references so answers draw on your actual source material. - **Bring your own API keys:** Connect directly to providers such as OpenAI, Anthropic, and Google using your own keys, and add more providers that follow supported API formats. - **Reusable prompt templates:** Save prompt templates to run frequent tasks in a single click. - **No intermediary server:** The extension talks straight to model providers and, per the developer, does not collect or store your data, keys, or chat history. ## 主要用例 - **Ask questions against several sources at once (Researchers):** Attach multiple pages as references and question the model about them without copying text into a separate chat window. - **Understand a page instantly (Readers and learners):** Highlight a difficult passage and ask the side panel to explain or summarize it while the article stays on screen. - **Use your own providers and keys (Developers and power users):** Point the extension at whichever AI providers you already pay for, and extend it with new models or prompt templates as needed. ## 优势 - Keeps AI chat in the browser side panel next to your content - Supports multiple AI providers through user-supplied API keys - Open source and, per the developer, operates without a backend server - Custom prompt templates and self-added models add flexibility ## 局限 - No bundled AI credits, so you must set up your own provider API keys - Very small install base, so community support and documentation are limited - Last listed update is v0.4, so the release cadence appears slow ## 常见问题 ### Is MemBrain free to use? The extension is free and open source. You only pay the AI providers whose API keys you connect, billed directly by them according to your own usage. ### Do I need my own API key? Yes. MemBrain works with API keys you provide for providers such as OpenAI, Anthropic, or Google, and it communicates with those services directly. ### Can I use MemBrain with web pages I am reading? Yes. You can attach one or more web pages or selected text passages as references so the model answers using that context. ### Does MemBrain store my data? According to the developer, the extension has no intermediary server and does not collect, store, or share personal information, browsing history, API keys, or chat history. OpenAI is not the developer of this extension. ### MemBrain - AI 第二大脑的月流量和增长趋势如何？ MemBrain - AI 第二大脑目前每月获得 0 访问量，月度环比流量变化为 +0（增长率 0.0%）。其主要来源市场是全球（— 份额），包括每月 0 次直接访问和每月 0 次自然搜索访问。 ### MemBrain - AI 第二大脑免费吗？它的定价模式是什么？ MemBrain - AI 第二大脑采用免费定价模式。Free. MemBrain itself is a free, open-source Chrome extension; costs come from the AI provider API usage you pay for directly with your own API keys. 支持的计费和结账平台包括：未列出。 ### 2026 年 MemBrain - AI 第二大脑的最佳替代方案有哪些？ 基于 OpenAITools.app 的分类流量和功能契合度，MemBrain - AI 第二大脑的前五个替代方案是：1. mymind（22.18万次访问/月）; 2. Merlin AI（138.26万次访问/月）; 3. Sider（264.47万次访问/月）; 4. Monica（451.28万次访问/月）; 5. Synaptic AI（1429 次访问/月）。 ### MemBrain - AI 第二大脑支持哪些平台和核心 AI 能力？ MemBrain - AI 第二大脑被归类在 AI 知识管理, AI 笔记工具, AI Productivity Tools, AI 助手下，支持以下平台：浏览器扩展，其核心能力标签包括：第二大脑, 知识管理, AI, 笔记记录, 学习, 记忆。 ## 替代工具 | 工具名称 | 月访问量 | 定价模式 | 对比 | | :--- | :--- | :--- | :--- | | [mymind](https://openaitools.app/zh/tool/mymind) | 221,816 | 免费试用，付费 | [对比](https://openaitools.app/zh/compare/membrain-vs-mymind) | | [Merlin AI](https://openaitools.app/zh/tool/merlin-ai) | 1,382,634 | 免费增值 | [对比](https://openaitools.app/zh/compare/membrain-vs-merlin-ai) | | [Sider](https://openaitools.app/zh/tool/sider) | 2,644,740 | 免费增值 | [对比](https://openaitools.app/zh/compare/membrain-vs-sider) | | [Monica](https://openaitools.app/zh/tool/monica-ai) | 4,512,775 | 免费增值 | [对比](https://openaitools.app/zh/compare/membrain-vs-monica-ai) | | [Synaptic AI](https://openaitools.app/zh/tool/synaptic-ai) | 1,429 | 免费 | [对比](https://openaitools.app/zh/compare/membrain-vs-synaptic-ai) | | [Chippy](https://openaitools.app/zh/tool/chippy) | 2,987 | 免费增值 | [对比](https://openaitools.app/zh/compare/chippy-vs-membrain) | | [Typing Mind](https://openaitools.app/zh/tool/typing-mind) | 533,103 | 付费 | [对比](https://openaitools.app/zh/compare/membrain-vs-typing-mind) | | [Glasp](https://openaitools.app/zh/tool/glasp) | 889,564 | 免费增值 | [对比](https://openaitools.app/zh/compare/glasp-vs-membrain) | | [AI Toolbox](https://openaitools.app/zh/tool/chatgpt-toolbox) | 290,140 | 免费增值 | [对比](https://openaitools.app/zh/compare/chatgpt-toolbox-vs-membrain) | | [Kome AI](https://openaitools.app/zh/tool/kome-ai) | 174,910 | 免费增值 | [对比](https://openaitools.app/zh/compare/kome-ai-vs-membrain) | | [Mem.ai](https://openaitools.app/zh/tool/mem-ai) | 137,457 | 免费增值，付费 | [对比](https://openaitools.app/zh/compare/mem-ai-vs-membrain) | | [Tactiq](https://openaitools.app/zh/tool/tactiq) | 6,521,542 | 免费增值 | [对比](https://openaitools.app/zh/compare/membrain-vs-tactiq) | --- 来源：https://openaitools.app/zh/tool/membrain