GitHub - linggen/linggen: A local-first memory layer for AI (Cursor, Zed, Claude). Persistent architectural context via semantic search.

Linggen: Stop re-explaining to AI.

The free and local app for your AI’s memory.

Linggen indexes your codebases and tribal knowledge so your AI (Cursor, Zed, Claude, etc.) can actually understand your architecture, cross-project dependencies, and long-term decisions.

Website • VS Code Extension • Documentation

🌀 Why Linggen?

Traditional AI chat is "blind" to anything you haven't manually copy-pasted. Linggen bridges this "context gap" by providing:

🧠 Persistent Memory: Store architectural decisions in .linggen/memory as Markdown. AI recalls them via semantic search.
🌐 Cross-Project Intelligence: Work on Project A while your AI learns design patterns or auth logic from Project B.
📊 System Map (Graph): Visualize file dependencies and "blast radius" before you refactor.
🔒 Local-First & Private: All indexing and vector search (via LanceDB) happens on your machine. Your code and embeddings never leave your side. No accounts required.

🚀 Quick Start (macOS)

Install the CLI in seconds and start indexing:

curl -sSL https://linggen.dev/install-cli.sh | bash
linggen start
linggen index .

Windows & Linux support coming soon.

💬 How to use it with your AI

Once Linggen is running and your project is indexed, simply talk to your MCP-enabled IDE (like Cursor or Zed):

"Call Linggen MCP, find out how project-sender sends out messages, and ingest it."

"Call Linggen MCP, load memory from Project-B, learn its code style and design pattern."

"Load memory from Linggen, find out what is the goal of this piece of code."

📂 The Linggen Ecosystem

linggen: The core engine and CLI runtime.
linggen-vscode: VS Code extension for Graph View and automatic MCP setup.
linggensite: (This Repo) The landing page and documentation site.
linggen-releases: Pre-built binaries and distribution scripts.

📜 License & Support

Linggen is open-source under the MIT License.

100% Free for Individuals: Use it for all your personal and open-source projects.
Local-First: Your code and your "memory" never leave your machine.
Commercial Support: If you are a team (5+ users) or a company using Linggen in a professional environment, we ask that you support the project's development by purchasing a Commercial License.

For more details on future enterprise features (SSO, Team Sync, RBAC), visit our Pricing Page or get in touch via email.

🗺️ Roadmap

Core Engine: Local indexing and semantic search (LanceDB).
MCP Support: Use with Cursor, Zed, and Claude.
Visual System Map: Graph visualization of your codebase.
Team Memory Sync: Share architectural decisions across your team.
Deep Integration: More IDEs and specialized agents.
Windows Support: Bringing the local engine to more platforms.