Built for clarity in a complex world.
Modern software architecture is complex. Microservices, event-driven patterns, and cloud-native infrastructure make it harder than ever to keep a mental model of your system.
We built Nautilus to solve this. It's not just a drawing tool—it's a thinking tool. With AI assistance, smart templates, and a semantic understanding of your components, Nautilus helps you communicate your technical vision clearly.
From Prompt to Diagram
Describe your system in plain English, and watch Nautilus generate a complete, editable architecture diagram instantly.
Everything you need to design better.
Powerful features wrapped in a minimal, distraction-free interface.
AI Generation
Turn text prompts into complete architecture diagrams instantly using OpenAI, Claude, or Gemini.
Smart Templates
Production-ready patterns for Netflix, Uber, WhatsApp, and more at your fingertips.
Fluid Editing
A high-performance canvas engine that feels native. Group, align, and connect with ease.
Developer First
Export to JSON, integrate with your workflow, and customize via open-source code.
Share & Export
Generate high-quality PNGs for your technical documentation or share live views.
Open Source
Free forever. No hidden fees. Built by the community, for the community.