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GalaxyBrain

GalaxyBrain

An information operating system powered by local files

0upvotes
Launched April 20, 2026
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About GalaxyBrain

GalaxyBrain is a powerful local-first knowledge management system designed for users who need a highly interconnected and customizable workspace. It combines the flexibility of a programming environment with the familiarity of a document editor, allowing users to create pages with variables, formulas, and live references that stay synchronized automatically. All data is stored as structured JSON files on the user's machine, ensuring privacy and control. Its built-in HTTP API and MCP tool enable seamless integration with AI models like Claude Code or Codex, making it ideal for developers, researchers, and productivity enthusiasts who want to build custom workflows without relying on cloud-based solutions. Unlike traditional note-taking apps, GalaxyBrain emphasizes a programmable, interconnected approach to managing information, making it suitable for complex projects and knowledge systems.

Screenshots

GalaxyBrain screenshot 1
GalaxyBrain screenshot 2

Pros

  • ✓Local-first storage ensures data privacy and control
  • ✓Supports live references and automatic synchronization between pages
  • ✓Built-in API and MCP tools enable custom integrations with AI models
  • ✓Flexible environment combining programming and document editing
  • ✓No account required, simplifying setup and use

Cons

  • ✗Steep learning curve for users unfamiliar with programming concepts
  • ✗Requires manual setup and local storage management
  • ✗Limited community support compared to mainstream tools

Use Cases

1Creating interconnected project documentation and wikis
2Building custom AI-powered workflows for research or content creation
3Managing complex data relationships within personal or team knowledge bases
4Developing programmable templates and formulas for automation
5Integrating local AI models for in-depth analysis or generation
6Maintaining private, structured data for specialized applications

Pricing

Likely operates as a freemium model with free access for core features. Advanced functionalities, API access, or integrations may require paid plans or licenses. Exact pricing details are not publicly specified but are probably subscription-based or one-time purchase.

Quick Info

Category🤖 AI Assistants
Upvotes0
Comments1
Launched4/20/2026

Topics

Productivity

Alternatives

•Notion
•Obsidian
•Roam Research
•TiddlyWiki
•Logseq

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