Bruin Notes
Utilities
Only for Mac
Free
Mac
Your AI-powered second brain. Bruin lets AI agents build and maintain your personal knowledge base — ingest articles into cross-linked wiki pages, search.
Bruin Notes is a personal knowledge management app built for AI collaboration. Connect any AI agent via the Model Context Protocol (MCP) and let it read, write, and organize your notes — while you stay in control through a built-in
review workflow.
KEY FEATURES
Rich Markdown Editor
Slash commands, syntax-highlighted code blocks, tables, task lists, images, and wiki-links. Auto-save keeps your work safe.
Knowledge Graph
Visualize how your notes connect. An interactive force-directed graph reveals relationships through wiki-links and backlinks. Zoom, pan, filter by depth, and color-code by tag.
AI Agent Integration (MCP)
60 tools via the Model Context Protocol. Any AI agent — Claude, Gemini, or your own models — can create notes, search your knowledge base, manage tasks, and run workflows. No vendor lock-in.
Human-in-the-Loop Review
Agents write drafts. You review and publish. The three-state lifecycle (Draft → Review → Published) ensures you always have the final say.
Semantic Search
Find notes by meaning, not just keywords. On-device embeddings power semantic search alongside full-text search with boolean filters, tag filtering, and date ranges. No API key required.
iCloud Sync
Notes sync as Markdown files via iCloud Drive across all your Macs. Conflict resolution uses SHA-256 hashing with automatic merge.
Workspaces
Organize notes into separate workspaces for different projects. Scope AI agents to specific workspaces for controlled, audited access.
Task Management
Create tasks with priorities and due dates, link them to notes, and assign them to AI agents for automated follow-through.
Workflow Automation
Build reusable multi-step workflow templates and execute them on demand — daily standups, research summaries, and more.
Webhooks
Subscribe to note events with HMAC-SHA256 signed webhooks. Full delivery logs and automatic retry included.
6 Beautiful Themes
Dark Graphite, Red Graphite, Charcoal, High Contrast, Solarized Light, and Solarized Dark.
Daily Notes & Templates
Start from templates for journals, meetings, or custom formats. Automatic daily note creation keeps your routine on track.
Privacy First
All data stored locally in SQLite. Embeddings run on-device. iCloud sync is optional. No telemetry, no tracking, no third-party analytics.
WHAT MAKES BRUIN DIFFERENT
Most note apps treat AI as an afterthought — a chatbot bolted onto a text editor. Bruin is built differently. Every feature is accessible to AI agents through a standardized protocol. Your assistant can search your knowledge graph,
create tasks, trigger workflows, and draft notes — all while you keep final control through the review pipeline.
Built with Tauri 2 (Rust + React) for native performance and a small footprint.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's New in Bruin 1.2.0
Wiki Knowledge Base — Build your personal knowledge base with AI. Ingest articles, let AI decompose them into
cross-linked wiki pages, and run health checks to keep your knowledge graph clean. Inspired by Andrej Karpathy's
LLM Wiki pattern.
Smarter Search — New multi-level search scores title matches higher than content, understands tag context, and
shows confidence levels for results. Works instantly with no setup required.
Native MCP Server — The MCP server is now built directly into the app. No more Node.js dependency — just use bruin
--mcp to connect with Claude Code. 66 tools, 7 prompts, zero external dependencies.
More Tools — 37 new MCP tools: batch operations, templates, webhooks, workflows, import/export, and knowledge graph
traversal.
Bruin 1.2.0 更新
Wiki 知识库 — 用 AI 构建个人知识库。投入文章，AI 自动拆解为互相链接的 Wiki
页面，还能健康检查找出孤岛页和缺失链接。灵感来自 Karpathy 的 LLM Wiki 方法。
更智能的搜索 — 全新多级评分搜索：标题匹配权重最高，标签次之，内容最低。返回置信度等级，无需任何配置。
原生 MCP 服务器 — MCP 服务器已内置于 App 中，不再需要安装 Node.js。用 bruin --mcp 即可连接 Claude Code。66
个工具、7 个提示词，零外部依赖。
更多工具 — 新增 37 个 MCP 工具：批量操作、模板、Webhook、工作流、导入导出、知识图谱遍历。
The developer, 陈华 张, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 陈华 张
- Size
- 19 MB
- Category
- Utilities
- Compatibility
Requires macOS 11.0 or later.
- Mac
Requires macOS 11.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Copyright 2026 Bruin. All rights reserved.