Quests

The open-source app builder that builds and runs apps on your computer using any LLM.

Features

• 🔗 Bring your own key (BYOK) - OpenAI, Anthropic, Google, OpenRouter, Mistral, Groq, xAI, DeepSeek, Ollama, and 20+ more
• 💻 Desktop app - Apps are built and run locally on your machine
• 🌟 Open source - Apache 2.0 licensed, high quality, and tested
• 🤖 Coding agent - State-of-the-art performance with targeted edits and real-time linting
• 🏗️ Multiple projects - Build and run multiple full-stack applications simultaneously
• 📂 Version control - Built-in versioning with restoration
• 📤 Exportable apps - Full-stack apps that can run anywhere
• 🧬 Evals - Compare outputs from multiple models and apps with built-in and custom prompts
• 📑 Templates - Discover page with open source templates for React, Angular, Astro, Svelte, and more
• 🔌 Custom providers - Support for custom OpenAI-compatible providers and multiple instances of the same provider

Download Quests

Download the desktop app at quests.dev.

All you need is an AI provider API key - everything runs locally on your computer.

Quests supports macOS, Windows, and Linux.

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Contributing

Important

AI Assistance

Quests itself can be used for vibe coding, but the project is not vibe coded.

If you use any AI assistance while contributing, this must be disclosed in your pull request along with the extent of usage (e.g., "code generation" vs "documentation only").

We welcome high-quality contributions.

• No messy or unfinished code
• Use conventional commit messages (e.g. feat: add new feature)
• Run pnpm check-and-test to validate your changes

Monorepo

Quests is organized as a monorepo with the following structure:

• @quests/studio - Electron desktop app for Quests
• @quests/workspace - Core AI agents, workflow logic, and workspace management
• @quests/ai-gateway - Local AI gateway for the coding agent and user-built apps
• @quests/shim-client - Locally injected control plane for user apps

Development Setup

You'll need:

• Node.js ≥ 22.16.0
• pnpm

Then:

# Clone the repository with submodules
git clone --recursive https://github.com/quests-org/quests.git
cd quests

# Install dependencies
pnpm install

# Start the studio in development mode
pnpm dev:studio

License

Quests is licensed under the Apache 2.0 license. See LICENSE for more information.