Free & Open Source  ·  macOS

Let me
engineer your
next product.

ProtoForge transforms your descriptions into production-ready build packages—working code, schematics, 3D models, and assembly guides—in seconds, fully offline. No latency, no cloud. Tangible output, entirely on your machine.

↓ Download for Mac GitHub →

macOS 12+  ·  Apple Silicon & Intel  ·  Python 3.8+

The Forge

Idea in.
Prototype out.

Prototype a device. Blueprint a vehicle. Architect a habitat. Fabricate furniture. Whatever you engineer, just describe it.

Move & scroll
What you can build

Three modes.
Infinite projects.

01 / Software

Web apps,
APIs,
scripts.

Describe any software project in plain English. Get production-ready code with proper structure, all dependencies wired up, and a live preview inside the app.

Outputs
Complete source code & file tree
HTML / CSS / JavaScript
Python APIs and scripts
Live in-app preview
Editable per-file viewer
02 / Hardware

Circuits,
BOMs,
3D models.

Describe a hardware project. Get everything you need to physically build it — schematics with real pin-to-pin connections, full component lists, and an interactive 3D viewer where you can click each part.

Outputs
Mermaid wiring diagram
Full component BOM
Interactive 3D part viewer
Pin-to-pin connections
Step-by-step assembly guide
03 / Sub-Agents

An AI team
that argues
for you.

Configure a team of specialized AI agents — Planner, Coder, Reviewer, Tester — that discuss, debate, and build your project collaboratively. Watch the live discussion in a collapsible panel.

Outputs
Live agent discussion stream
Collapsible thought threads
Terminal access per agent
Context-aware iterations
15+ provider support
How it works

Three steps.
That's it.

01 —

Describe your idea

Type what you want in plain language. "A line-following robot with obstacle avoidance." "A REST API for tracking inventory." No special prompting skills required — just describe the project.

02 —

Pick your mode

Software, Hardware, or Hybrid. Connect any AI provider — OpenRouter, Together, Anthropic, General Compute, AgentRouter, or your own OpenAI-compatible endpoint. The model dropdown fetches live options from each provider.

03 —

Build the real thing

Working code, schematics, 3D models, and instructions appear in seconds. Preview in-app, copy files, iterate with follow-up prompts — the AI remembers your conversation. No cloud, no account, no data leaving your machine.

Works with 15+ AI providers — bring your own key, or use free tiers
FAQ

Questions.

For free tier: Groq (very generous limits), Together AI, or SiliconFlow. For best quality: Claude Sonnet via Anthropic or AgentRouter, DeepSeek V4, or GPT-5 via OpenAI. Any OpenAI-compatible endpoint works — including your own. The model dropdown auto-fetches the live list when you enter your key.
100% local. ProtoForge is a native macOS app with a Python backend running entirely on your machine. Your API keys go directly to providers. No data, keys, or projects ever touch our servers.
ProtoForge generates pin-to-pin connections with real component part numbers and quantities. Accuracy depends on model quality — Claude or GPT-5 are recommended for complex hardware. Always verify before ordering components or building circuits.
ProtoForge was built by a 13-year-old. Started as a personal project, got real fast. Open-source under MIT license. Contributions and issues welcome on GitHub.
Hardware mode (wiring diagrams, interactive 3D part viewer, BOM, assembly), Sub-agent orchestration (live AI team discussion), Hybrid mode (IoT, robotics), planning loop (question → research → deep thinking), and unlimited prompts. Free tier remains fully functional for software projects.

Start building
right now.

Free download. No account. No cloud. Just build.

↓ Download ProtoForge