Test LLMs Side-by-Side

The Shotgun Prompt

Send one prompt to GPT-4, Claude 3, and Gemini simultaneously. Stop copy-pasting between browser tabs.

Local-First Privacy

Your API keys and prompt history are stored in a local SQLite database. Nothing touches our servers.

Branching History

Treat prompts like code. Fork your iterations, switch between versions, and never lose a winning prompt again.

Version Control for Your Prompts.

Never lose a good prompt again. Fork your prompts, iterate safely, and seamlessly switch between past versions. A complete timeline of your prompt evolution.

Developer-Grade Debugging.

Don't settle for a chat interface. Inspect raw API responses, latency stats, and token usage for every single request.

Your Keys. Your Vault.

Your API keys never leave your device. All data is stored locally in SQLite. Zero telemetry. Zero middleman.

Under the Hood

We chose Electron to ship everywhere, but we stripped the bloat to respect your RAM.

Native Web Components

Built directly on top of native browser APIs and standard Web Components.

Local-First Design

Your data lives in a standard SQLite file on your disk. Backup, sync, or delete it whenever you want.

{
  "runtime": "Electron",
  "security": "Context Isolated",
  "frontend": "Vanilla JS + Web Components",
  "database": "SQLite3 (Local-only)",
  "telemetry": false,
  "idle_memory": "~240MB"
}