Archflow

Web· paid plans from $5/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Archflow is ranked #8 of 32 in AI diagram generators on Freedom251. It runs on Web. There is a free plan. A free trial is offered. Paid plans start at $5/mo.

Archflow plans and pricing

All plans

Free Free $0/forever 1 project · 3 diagrams per project · User stories with Kanban board · Basic diagram editor with UML nodes · Email support archflow.dev · 10 Oct 2026

Pro $5/mo $5/per month Unlimited projects & diagrams · AI design assistant (Flowy) · AI-generated stories, scope & docs · Real-time collaboration · Priority support archflow.dev · 10 Oct 2026

Compared on AI diagram generators

Free plan: Yes
Real-time collaboration: Yes
Platform: web

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The record

Purpose: Archflow is a collaborative platform for designing software systems with AI, including architecture diagrams, user stories, scope cards, and technical documentation.
AI assistant: Its built-in AI assistant generates architecture diagrams, user stories, scope cards, and technical documentation from natural language.
Diagram editor: The visual editor supports UML classes, interfaces, components, databases, and services, with drag-and-drop creation and undo/redo history.
Collaboration: Real-time collaboration includes live cursors, presence indicators, synchronized editing, comments, and activity feeds.
User stories: Kanban boards support status tracking, estimates, acceptance criteria, and direct links to architecture diagrams.
Documentation: Technical documentation uses a Markdown editor with live preview and categories, and can be generated with AI.
Integrations: The service lists Stripe for payments, OpenAI for AI, GitHub and Google for authentication, and Resend for email.
Privacy: The privacy policy says Archflow processes data under UK GDPR and the Data Protection Act 2018, and does not sell, rent, or trade personal data.
Security: The privacy policy says passwords are bcrypt-hashed, data in transit uses TLS/HTTPS, and production access is restricted to authorised personnel.
AI data handling: The privacy policy says AI prompts and selected project context are transmitted to OpenAI's API, and AI chat history is stored on Archflow servers.
Support: The Free plan includes email support and Pro includes priority support.
Free tier limits: The Free plan is described for personal projects and exploration and is limited to one project and three diagrams per project.
Intended users: The Free plan is positioned for personal projects and exploring Archflow, while Pro is positioned for teams building software together.
Eligibility: The terms say users must be at least 18 years old to use the service.
Price from: $5/mo

Where it ranks on Freedom251

Best AI Diagram Generators in 2026#8 of 32

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Sources

archflow.dev· checked 10 Oct 2026
archflow.dev/terms· checked 10 Oct 2026
archflow.dev/privacy· checked 10 Oct 2026