Blueprint — AI System Diagram Generator
FREE · LIVEDescribe an app in one plain sentence — "a URL shortener with rate limiting and click analytics" — and Blueprint designs the real architecture (services, gateways, databases, queues, third-party APIs) and draws it as a clean, tiered system diagram. Export it as PNG, SVG, or Mermaid, or edit the JSON and redraw. It's the difference between asking a chatbot and getting an actual, reusable diagram: the AI fills a strict schema, and a deterministic engine does the layout, the icons, and the polish. Here's the build log that made it.
Runs for $0: the AI designs the graph on GLM's free model, your browser renders it. No sign-up, no watermark-removal upsell, no catch. Free tier is 40 diagrams/day — add your own free GLM key for unlimited.
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// Runs on GLM's free model + your browser. If you outgrow the free tiers and want unlimited, the GLM Coding Plan is the cheapest paid path I've found — that's my referral link (costs you nothing extra; it helps fund the compute behind these builds).