Dyad: A Locally First Open Source Full-Stack AI Application Builder#
Dyad is a locally first, open-source, free full-stack AI application builder, positioned as an "AI Conversational Development Toolbox." Users describe their needs in natural language (e.g., "build a to-do app with login"), and Dyad automatically generates complete front-end (React), back-end (Supabase), and database code, with all code and data retained on local devices.
Technical Breakthroughs#
- Multi-Model Switching: Supports mainstream models like Gemini 2.5 Pro, GPT-4.1, Claude Sonnet, and allows for custom models. Users can bring their own API keys to avoid vendor lock-in.
- Deep Supabase Integration: Seamlessly connects authentication, databases, and server-side functionality, enabling MVP applications to be built in 5 minutes.
- Git-style Version Management: Automatically generates code snapshots with each AI modification, supporting one-click rollback.
Four Core Features Tested#
1. Conversational Full-Stack Development#
Example Input Command
"Build a user login system with Google authentication, storing data in Supabase"
Output Results:
- Automatically generates React front-end login page + back-end Auth logic
- Configures Supabase user table and API interface
- Pitfall Reminder: Complex requirements need to be broken down into multiple commands (e.g., first define the data model, then design the UI)
2. Cross-Platform Localized Operation#
Deployment Options:
- One-click installation for macOS/Windows, offline available
- 100% local data storage, eliminating cloud leak risks
- Tech Stack: TypeScript (96.9%) + React + Supabase, code can be exported to VSCode for further development
3. Multi-Model Hybrid Scheduling#
Recommended Model Types and Scenarios | Cost Advantages |
---|---|
Gemini 2.5 Pro | Long text logic generation, utilizing daily free quota |
Ollama Local Model | Sensitive data processing, zero API costs |
GPT-4.1 | Complex code generation requires a paid key |
Quick Start Guide#
1. Installation and Configuration#
-
Download the installation package (supports macOS/Windows)
Visit the official website https://www.dyad.sh/ to download -
Configure API Key (using Gemini as an example)
- Left sidebar Settings → AI Providers → Google Gemini
- Paste API key → Save
2. Create an Application#
- Click "New App" → Select tech stack (recommended Next.js)
- Enter prompt: "Create a blog system that supports Markdown editing and commenting"
- Wait for AI to generate code → Real-time preview interface
- Click "Export" to deploy to GitHub/Vercel
Competitor Comparison Analysis#
Capability | Dyad | v0/LovableBolt |
---|---|---|
Code Ownership | ✅ 100% Local Open Source | ❌ Cloud Closed Source |
Data Privacy | ✅ No Cloud Transmission | ❌ Data Uploaded to Vendor Servers |
Model Flexibility | ✅ Supports Any API/Local Model | ❌ Locked to a Single Vendor |
Cost | ✅ Core Features Free Forever | ❌ Subscription-Based ($20+/month) |
Deployment Freedom | ✅ Can Export to Any Platform | ❌ Limited to Exclusive Hosting |
Limited Customization | 💡 | ⚠️ |
Advantages Summary#
Privacy control + zero cost + full-stack generation, suitable for small to medium teams and privacy-sensitive scenarios.
Developer Extension Tips#
Performance Tuning Parameter Example Configuration Recommended Values
maxToken
: 2048 — Controls the length of AI-generated codetemperature
: 0.3 — Reduces randomness, enhances code stabilitylocalFallback
: true — Automatically switches to local model during network interruptions
Conclusion: Who Should Pay Attention to Dyad?#
Core Value: ✨ Transforming full-stack development from "writing code" to "stating requirements" — lowering technical barriers through AI dialogue while ensuring data sovereignty.
Applicable Scenarios:
- Entrepreneurs: Zero-code validation of product ideas, saving initial development costs
- Corporate IT Departments: Rapidly building internal tools (e.g., contract review, customer management)
- Educational Institutions: Teaching full-stack development and AI integration practices
- Privacy Advocates: Rejecting the risks of cloud data leaks
GitHub Address#
🔗 https://github.com/dyad-sh/dyad
Official Experience: https://www.dyad.sh