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。
这是编辑给出的评估，满分 5 分，不是用户打分的平均值。 本页的各方观点由 AI 根据产品信息归纳，不是真实用户的评价。
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）。
能自己填 API Key 太香了，完全不用买第三方会员。
侧边栏偶尔会卡加载，开源项目凑合用。
代码开源，隐私放心。
配置 API 稍微有点繁琐。
以下短评基于实时网页探查、定价机制与同类产品基准由 AI 综合模拟生成，旨在呈现不同使用场景下的常见槽点与亮点，非实名真实用户评价。
Open an AI chat alongside the page you are reading, without navigating away or switching tabs.
Attach one or more pages, or selected passages, as references so answers draw on your actual source material.
Connect directly to providers such as OpenAI, Anthropic, and Google using your own keys, and add more providers that follow supported API formats.
Save prompt templates to run frequent tasks in a single click.
The extension talks straight to model providers and, per the developer, does not collect or store your data, keys, or chat history.
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
Attach multiple pages as references and question the model about them without copying text into a separate chat window.
Highlight a difficult passage and ask the side panel to explain or summarize it while the article stays on screen.
Point the extension at whichever AI providers you already pay for, and extend it with new models or prompt templates as needed.
同一分类下同类 AI 工具的流量并排对比
| 排名 | AI 工具 | 月访问量 | 月度环比增长 | 直接流量占比 | 定价 | 头对头 |
|---|---|---|---|---|---|---|
| ● | MemBrain - AI 第二大脑 | 0 | — | — | 免费 | 当前产品 |
| 1 | mymind | 22.18万 | -1% | 75% 直接流量 | 免费试用，付费 | 对比 mymind |
| 2 | Merlin AI | 138.26万 | +13.1% | 50% 直接流量 | 免费增值 | 对比 Merlin AI |
| 3 | Sider | 264.47万 | -10.6% | 64% 直接流量 | 免费增值 | 对比 Sider |
| 4 | Monica | 451.28万 | -11.3% | 55% 直接流量 | 免费增值 | 对比 Monica |
| 5 | Synaptic AI | 1429 | -14.1% | 30% 直接流量 | 免费 | 对比 Synaptic AI |
| 6 | Chippy | 2987 | +29.6% | 42% 直接流量 | 免费增值 | 对比 Chippy |
专项更强Synaptic AI is a Chrome extension and web dashboard that acts as an AI second brain: it summarizes any web page or YouTube video, saves the result as a searchable note, and lets you chat with everything you have stored.
专项更强Synaptic AI is a Chrome extension and web dashboard that acts as an AI second brain: it summarizes any web page or YouTube video, saves the result as a searchable note, and lets you chat with everything you have stored.
最好的 AI 前端。
划重点、公开学习，打造属于你的 AI 分身
AI Toolbox (formerly ChatGPT Toolbox) is a browser extension that adds folders, global search, a prompt library and one-click exports to the AI chatbots you already use.
AI Toolbox (formerly ChatGPT Toolbox) is a browser extension that adds folders, global search, a prompt library and one-click exports to the AI chatbots you already use.
Kome is a browser extension that combines an AI summarizer, a bookmark manager and AI writing shortcuts in one sidebar. Summarize articles, YouTube videos, PDFs and webpages in a click, save anything you find, then turn your saved library into emails, tweets and blog drafts.
Kome is a browser extension that combines an AI summarizer, a bookmark manager and AI writing shortcuts in one sidebar. Summarize articles, YouTube videos, PDFs and webpages in a click, save anything you find, then turn your saved library into emails, tweets and blog drafts.
