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

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.

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.

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."

• 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.

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.

• 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.

MIT © 2025 Linggen