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Welcome to TatsuCode

TatsuCode is an AI-powered coding assistant for your desktop. It combines access to 200+ AI models with a native desktop experience — no installation required, just download and run.

Why TatsuCode?

Use Your Existing AI Subscriptions

Already using GitHub Copilot, ChatGPT Plus/Pro, or Gemini Advanced? Use them in TatsuCode with no extra TatsuCode fee. Connect via OAuth and use your existing subscription access.

200+ Models, One Interface

Access Claude, GPT-4, Gemini, Llama, DeepSeek, and hundreds more through OpenRouter. Switch models mid-conversation. Pick the right model for the job.

Truly Portable

Zero installation. No admin rights. No dependencies. Download, extract, run. Works from a USB drive, a locked-down corporate laptop, or any folder on your machine.

Privacy-First Design

  • Zero telemetry — No data collection, no analytics
  • Private DevBrowser — Built-in browser that doesn't share cookies or credentials with your desktop browser
  • Local storage — Your API keys and settings stay on your machine

Free to Use

TatsuCode is free. Bring your own API key, or connect your existing AI subscription.

What Can TatsuCode Do?

TatsuCode is an agentic coding assistant. It doesn't just answer questions — it takes action:

CapabilityExamples
Read & AnalyzeUnderstand entire codebases, analyze architecture, find issues
Write & EditCreate files, make targeted edits, refactor code
Office DocumentsRead, write, and edit DOCX/XLSX/PPTX/CSV workflows
Run CommandsExecute builds, run tests, manage git
Search the WebFind documentation, research solutions, fetch pages
YouTube AnalysisExtract transcripts or analyze video content for implementation details
Automate BrowsersTest web apps, take screenshots, inspect elements
Undo MistakesFull file history with revert to any previous state

Quick Example

> Analyze this React component for potential issues and fix them

TatsuCode: I'll analyze the component...

[Reads UserProfile.tsx]

Found 3 issues:
1. Missing error handling in useEffect
2. Memory leak - no cleanup function
3. Form inputs missing accessibility labels

[Shows diff of proposed fixes]

Applied all fixes. Running tests...

All 23 tests passed ✓

Standards-Friendly Workflows

TatsuCode supports both project rules and reusable skills using industry-standard formats:

That means your team can define shared behavior once and keep it consistent across sessions.

Getting Started

Getting started takes about 30 seconds:

  1. Download — Get the Windows executable
  2. Run — Double-click to launch (no install)
  3. Connect — Add an API key or connect your AI subscription
  4. Code — Start asking questions and giving tasks

/connect      # Set up your AI access
/models       # Choose a model
/skills       # Load a specialized workflow skill

Then just type naturally:

> Explain what this project does
> Find all functions that handle authentication
> Add input validation to the login form

Key Differentiators

FeatureTatsuCodeOthers
Use existing AI subscriptions✓ GitHub Copilot, ChatGPT, GeminiUsually API-only
Portable executable✓ No install, no adminRequires installation
Private DevBrowser✓ Isolated, no credential leaksUses system browser
Windows native✓ Native experienceOften cross-platform compromises
200+ models✓ One interfaceUsually locked to one provider

Next Steps

Getting Help

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Enjoying TatsuCode?

TatsuCode is free to use. If it's helped your workflow, consider supporting its development.

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