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Archflow

archflow.dev

From $5/mo Free plan Web
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Spec score 9.0 #4 of 32 in AI Diagram Generators

What it is

Archflow is a web platform for collaboratively designing software systems with AI. Its assistant can create architecture diagrams, user stories, scope cards, and technical documentation from natural-language input. The visual editor supports UML classes, interfaces, components, databases, and services, with drag-and-drop creation and undo/redo. Teams can edit together using synchronized changes, live cursors, presence indicators, comments, and activity feeds. Kanban boards track user-story status, estimates, and acceptance criteria, and link stories to architecture diagrams. Documentation is created in a Markdown editor with live preview and categories, and can also be AI-generated. The Free plan costs nothing and allows one project and three diagrams per project. Pro costs $5 a month and includes unlimited projects and diagrams, AI-generated content, real-time collaboration, and priority support. Archflow says prompts and selected project context are sent to OpenAI's API, and AI chat history is stored on its servers.

Spec sheet

What it does
Archflow is a SaaS workspace for collaboratively designing software architecture with AI-generated diagrams, user stories, scope cards and technical documentation.Read 15 Oct 2026 · archflow.dev
Purpose
Archflow is a collaborative platform for designing software systems with AI, including architecture diagrams, user stories, scope cards, and technical documentation.Read 10 Oct 2026 · archflow.dev
Intended users
The Free plan is positioned for personal projects and exploring Archflow, while Pro is positioned for teams building software together.Read 10 Oct 2026 · archflow.dev
Integrations
The service lists Stripe for payments, OpenAI for AI, GitHub and Google for authentication, and Resend for email.Read 10 Oct 2026 · archflow.dev
Security
The privacy policy says passwords are bcrypt-hashed, data in transit uses TLS/HTTPS, and production access is restricted to authorised personnel.Read 10 Oct 2026 · archflow.dev
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.Read 10 Oct 2026 · archflow.dev
Support
The Free plan includes email support and Pro includes priority support.Read 10 Oct 2026 · archflow.dev
Age requirement
Users must be at least 18 years old to register and use the service.Read 15 Oct 2026 · archflow.dev
AI assistant
The Flowy assistant creates architecture diagrams, stories, scope cards and technical documents from natural-language descriptions.Read 15 Oct 2026 · archflow.dev
AI coding workflow
Archflow says linked stories, scope, diagrams and documents can be handed to engineers or fed into AI coding tools.Read 15 Oct 2026 · archflow.dev
AI data handling
Prompts and selected project context are sent to the AI provider, while generated outputs and chat history are stored as project data.Read 15 Oct 2026 · archflow.dev
Architecture diagrams
The visual editor supports UML classes, interfaces, components, databases and services with drag-and-drop editing and undo/redo.Read 15 Oct 2026 · archflow.dev
Authentication integrations
Accounts can be registered with email and password or through GitHub and Google OAuth.Read 15 Oct 2026 · archflow.dev
Billing
Paid subscriptions are charged in advance through Stripe and continue until the billing period ends after cancellation.Read 15 Oct 2026 · archflow.dev
Collaboration
Real-time collaboration includes live cursors, presence indicators, synchronized editing, comments, and activity feeds.Read 10 Oct 2026 · archflow.dev
Company listing: executive
Crunchbase names Hong Yoon-jung as CEO of Archflow AI.Read 15 Oct 2026 · crunchbase.com
Company listing: founder and size
LinkedIn lists Archflow by Ground One Inc. as founded in 2022 with 11–50 employees and headquarters in Seoul.Read 15 Oct 2026 · linkedin.com
Company listing: funding
Crunchbase shows one grant funding round associated with the TIPS Program, but the amount is obscured.Read 15 Oct 2026 · crunchbase.com
Company listing: headquarters
Crunchbase places Archflow AI in Seocho, Seoul, South Korea.Read 15 Oct 2026 · crunchbase.com
Company listing: legal name
Crunchbase identifies the Archflow AI company as Ground One Inc., also known as Ground One, with active for-profit status.Read 15 Oct 2026 · crunchbase.com
Company news
LinkedIn reports that Archflow received a K-DATA Award as an excellent 2025 Data Voucher Program case for AI-based building-energy optimization.Read 15 Oct 2026 · linkedin.com
Data retention
Account data is deleted or anonymized within 30 days after deletion, AI history and activity logs may remain up to 12 months, and payment records are retained seven years.Read 15 Oct 2026 · archflow.dev
Diagram editor
The visual editor supports UML classes, interfaces, components, databases, and services, with drag-and-drop creation and undo/redo history.Read 10 Oct 2026 · archflow.dev
Documentation
Technical documentation uses a Markdown editor with live preview and categories, and can be generated with AI.Read 10 Oct 2026 · archflow.dev
Documentation depth
The product advertises Markdown documentation with categories, live preview and AI generation, but no separate public developer documentation was found.Read 15 Oct 2026 · archflow.dev
Eligibility
The terms say users must be at least 18 years old to use the service.Read 10 Oct 2026 · archflow.dev
Free tier limits
The Free plan is described for personal projects and exploration and is limited to one project and three diagrams per project.Read 10 Oct 2026 · archflow.dev
Licence
Archflow's terms state that its software, branding, documentation and underlying technology are company property protected by intellectual-property law.Read 15 Oct 2026 · archflow.dev
Limit: security guarantee
Archflow states that no electronic transmission or storage method is completely secure and it cannot guarantee absolute security.Read 15 Oct 2026 · archflow.dev
Linked workflow
Stories, scope cards and diagram nodes have bidirectional links so requirements can be traced to architecture decisions.Read 15 Oct 2026 · archflow.dev
Privacy compliance
The privacy policy says processing follows the UK GDPR and UK Data Protection Act 2018, with stated rights of access, deletion, portability and objection.Read 15 Oct 2026 · archflow.dev
Public API and SDKs
The reviewed Archflow pages do not describe a public API, SDK, webhook system or developer package.Read 15 Oct 2026 · archflow.dev
Real-time collaboration
Teams can edit together with live cursors, presence indicators, synchronized changes, comments and activity feeds.Read 15 Oct 2026 · archflow.dev
Refund limit
The terms say partial-period refunds are not provided except where legally required.Read 15 Oct 2026 · archflow.dev
Scope management
Scope cards can be prioritized, sized for effort, assigned to owners and moved from proposed to done in board or grid views.Read 15 Oct 2026 · archflow.dev
Search
The Pro tier includes global full-text search across project entities.Read 15 Oct 2026 · archflow.dev
Security controls
The privacy policy lists bcrypt password hashing, TLS/HTTPS, secure HTTP-only cookies, authentication rate limiting, Helmet security headers and restricted production access.Read 15 Oct 2026 · archflow.dev
Self-hosting
The reviewed product pages describe Archflow as a hosted SaaS service and provide no self-hosting or on-premises deployment option.Read 15 Oct 2026 · archflow.dev
Service integrations
The terms identify Stripe for payments, OpenAI and Anthropic for AI processing, Resend for email, and GitHub or Google for authentication.Read 15 Oct 2026 · archflow.dev
Technical documentation
Documentation uses a Markdown editor with live preview and categories, and documents can be generated with AI.Read 15 Oct 2026 · archflow.dev
Termination limit
Archflow reserves the right to suspend or terminate accounts with or without notice for listed reasons including inactivity, abuse or non-payment.Read 15 Oct 2026 · archflow.dev
User stories
User stories use a Kanban board with drag-and-drop status changes, estimates, acceptance criteria and links to diagram elements.Read 15 Oct 2026 · archflow.dev

Plans and prices

Free Free $0/forever 1 project · 3 diagrams per project · user-story Kanban board · basic UML diagram editor · email support Read 15 Oct 2026 · archflow.dev
Pro $5 a month $5/per month unlimited projects and diagrams · Flowy AI assistant · AI-generated stories, scope and documentation · scope boards · documentation editor · real-time collaboration · comments, mentions and activity feed · global search · priority support Read 15 Oct 2026 · archflow.dev

Every Archflow plan and price →

Strong points and limits

Strong points

  • AI creates diagrams, stories, scope cards, and documentation.
  • Diagram editor supports UML elements and drag-and-drop.
  • Live collaboration includes comments and synchronized editing.
  • Pro costs $5 a month.

Limits

  • Free plan allows one project only.
  • Free plan limits each project to three diagrams.
  • AI prompts and selected context go to OpenAI's API.

Who it suits

The Free plan is positioned for personal projects and exploring the platform. Pro is aimed at teams building software together.

Verdict

Archflow brings diagrams, user stories, and technical documentation into a collaborative web workspace. The free tier is tightly limited, so teams needing more projects or diagrams would need Pro.

Where Specifiction places it

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