Austial Flow — AI System Design Tool

Describe your system. Get the diagram.

Austial Flow turns plain-English descriptions into accurate system design diagrams — with built-in AI validation, a curated pattern library, and a public gallery.

Get started freeSee what it does

No credit card required · Free plan available

Austial Flow editor — AI chat panel, system diagram canvas, and component library
AI Diagram GenerationDesign ValidationPattern LibraryPublic GalleryPrivate by DefaultReal-time CollaborationCloud ArchitectureMicroservicesEvent-Driven DesignSystem Design ReviewsAI Diagram GenerationDesign ValidationPattern LibraryPublic GalleryPrivate by DefaultReal-time CollaborationCloud ArchitectureMicroservicesEvent-Driven DesignSystem Design Reviews

AI-powered creation

Chat to build.
No drag-and-drop.

Type a prompt — “design a ride-sharing backend with surge pricing” — and Austial Flow generates a complete multi-component architecture. Refine through conversation, swap components, or ask the AI to explain trade-offs.

  • Design validation

    AI reviews for bottlenecks, SPOFs, and missing redundancy.

  • Curated pattern library

    Suggestions grounded in CQRS, saga, strangler fig, and more.

  • Public gallery

    Publish, browse, and rate community designs.

  • Private by default

    Private until you choose to share.

Explore all features

austial flow — chat

Design a scalable URL shortener with Redis caching and PostgreSQL

Generated. Architecture: CDN → API Gateway → App Servers → Redis (L1 cache) → PostgreSQL with read replicas.

Validate for single points of failure

✓ No SPOF found. Recommend Redis Sentinel for HA and a PostgreSQL replica for read scaling.

Built-in validation

AI that reviews your architecture.

Most AI tools hallucinate architecture details. Austial Flow is backed by a structured library of production-proven patterns — so when it suggests a circuit breaker or a CQRS split, it can explain exactly why and when it applies.

SPOF Detection

Spots single points of failure before you ship.

Bottleneck Analysis

Identifies throughput constraints in your design.

Pattern Suggestions

Recommends proven patterns from the knowledge base.

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How it works

Three steps to a diagram.

Describe your system
01

Describe your system

Write a plain-English prompt — components, scale, constraints. No templates needed.

AI generates the diagram
02

AI generates the diagram

Austial Flow maps your description to an accurate multi-component architecture in seconds.

Validate & share
03

Validate & share

Run AI validation to catch issues, then publish to the public gallery or keep it private.

Knowledge base

Patterns that engineers actually use.

Covers cloud-native, microservice, monolith, event-driven, and data-intensive patterns across AWS, GCP, and Azure.

Event-Driven Architecture
CQRS
Circuit Breaker
Saga Pattern
Strangler Fig
API Gateway
Explore the library

Community

Designs shared by engineers.

The public gallery is home to hundreds of architecture diagrams submitted by engineers worldwide. Browse, star, and fork any design.

Netflix-style Video Streaming — system design diagram

Netflix-style Video Streaming

Rahul M. · 247 stars

Real-time Chat with WebSockets — system design diagram

Real-time Chat with WebSockets

Priya S. · 183 stars

Multi-region Database Setup — system design diagram

Multi-region Database Setup

James T. · 319 stars

Browse gallery

Pricing

Simple, transparent pricing.

Free to start. Upgrade when your team needs more.

Free

$0forever
  • 5 diagrams
  • AI validation
  • Public gallery
Get started

Pro

$15/month
  • Unlimited diagrams
  • Private diagrams
  • Priority AI
  • Export SVG/PNG
Start Pro

Team

$49/month
  • Everything in Pro
  • Team workspace
  • SSO
  • Admin controls
Start Team

Need a custom plan? Talk to us.

Get started

Start designing better systems today.

Austial Flow is free to try. No setup, no credit card. Just describe your architecture and see what happens.

Try it freeTalk to us