Deploy and Host Next AI Draw.io on Railway

Next AI Draw.io is a Next.js app that combines the draw.io editor with an AI chat: describe a diagram (architecture, flowchart, sequence) and the model draws and edits it for you.

About Hosting Next AI Draw.io

This template runs the official ghcr.io/dayuanjiang/next-ai-draw-io:latest image with no server-side AI key, so it costs you nothing to host. On first visit open Settings in the chat panel, choose a provider (OpenAI, Anthropic, Google, OpenRouter and many more) and paste your own API key; it stays in your browser. To serve a key from the server instead, add AI_PROVIDER, AI_MODEL and the provider's key variable (see env.example in the repo) and also set ACCESS_CODE_LIST so strangers cannot spend it.

Common Use Cases

Draw cloud architecture diagrams from a text description
Turn notes into flowcharts and sequence diagrams
Edit existing draw.io diagrams with natural language

Dependencies for Next AI Draw.io Hosting

One stateless service; an API key from any supported AI provider

Deployment Dependencies

Why Deploy Next AI Draw.io on Railway?

Railway gives you a public HTTPS URL and automatic restarts with no server to maintain. Open the URL, add your key in Settings and start drawing.