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Archway
What Archway is
Archway is a diagramming platform for software and system architecture, available on the web, through an API, and as a self-hosted deployment. It scans GitHub repositories to produce multi-system C4 container diagrams, and parses Prisma, Drizzle, or SQL DDL schemas into ERDs without an AI call or quota use. Diagram types include cloud architecture, sequence, ERD, data flow, flowchart, C4 model, and network topology. Exports include Mermaid, PlantUML, D2, Draw.io XML, SVG, PNG, PDF, and Terraform HCL. Teams can edit simultaneously with synchronized changes and attach markdown notes to diagrams. Docker Compose supports deployment on customer infrastructure. A free plan includes five AI generations per month and three diagrams. Pro costs $12 a month; Team is $35 per user per month, and Team Pro is $40 per user per month. AI diagram prompts are sent to Anthropic Claude and are not kept beyond the generation session. Archway runs on SOC 2 Type II-certified infrastructure, but the product itself is not SOC 2 certified.
Who it suits
Archway suits developers and teams who need architecture diagrams, schema ERDs, or repository-derived diagrams. Its API and self-hosting options may fit teams integrating diagram creation or deploying on their own infrastructure.
What it does well
- Creates C4 diagrams from GitHub repositories
- Parses Prisma, Drizzle, and SQL DDL schemas without AI
- Supports seven diagram types
- Exports to Mermaid, PlantUML, D2, and more
- Offers simultaneous editing and markdown notes
What to know first
- Free plan allows three diagrams
- Free plan includes five AI generations per month
- Product itself is not SOC 2 certified
- AI prompts are sent to Anthropic Claude
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| FREE | forever · 5 AI generations / month · 3 diagrams · all 7 diagram types · PNG + SVG export | Free |
| PRO | monthly · 50 AI generations / month · unlimited diagrams · markdown notes and embed codes · all export formats · version history · template library · priority support | $12 a month |
| TEAM | per user · 200 AI generations / user · real-time collaboration · team workspaces · admin controls · template library · everything in Pro | $35 a month |
| TEAM_PRO | per user · 300 AI generations / user · audit logs · advanced permissions · dedicated onboarding · priority support SLA · everything in Team | $40 a month |
| ENTERPRISE | Unlimited AI generations · SAML SSO · self-hosted deployment option · consolidated ACH / wire / PO invoice · custom SLA · dedicated support | On request |
As archdiagram.dev lists them, read 1 Oct 2026. The maker's own page has the final word.
Verdict
Archway combines repository and schema parsing with collaborative diagram editing and several deployment options. Consider the plan limits and AI prompt handling when deciding how to use it.
Facts from Archway's own pages
- AI provider
- AI-generated diagrams send prompts to Anthropic Claude, and prompts are not stored beyond the generation session. · archdiagram.dev, 1 Oct 2026
- API
- The REST API is under /api/v1 and supports session-cookie or Bearer API-key authentication. · archdiagram.dev, 1 Oct 2026
- Authentication integrations
- Archway supports OAuth 2.0 through GitHub and Google. · archdiagram.dev, 1 Oct 2026
- Cloud integrations
- Its icon library covers AWS, Azure, Google Cloud, and Kubernetes, with 1,900+ icons. · archdiagram.dev, 1 Oct 2026
- Collaboration
- It provides simultaneous editing with CRDT-powered sync and markdown notes attached to diagrams. · archdiagram.dev, 1 Oct 2026
- Compliance status
- Archway runs on SOC 2 Type II certified infrastructure but is not itself SOC 2 certified. · archdiagram.dev, 1 Oct 2026
- Data ownership
- Users retain ownership of diagrams, DSL source code, and content created using Archway. · archdiagram.dev, 1 Oct 2026
- Diagram types
- The platform supports cloud architecture, sequence, ERD, data flow, flowchart, C4 model, and network topology diagrams. · archdiagram.dev, 1 Oct 2026
- Encryption
- Connections use TLS 1.3 and MongoDB Atlas data is encrypted at rest with AES-256. · archdiagram.dev, 1 Oct 2026
- Exports
- Archway exports diagrams to Mermaid, PlantUML, D2, Draw.io XML, SVG, and PNG. · archdiagram.dev, 1 Oct 2026
- Repo scanning
- Archway scans a GitHub repository and produces a multi-system C4 container diagram. · archdiagram.dev, 1 Oct 2026
- Schema ERD
- It parses Prisma, Drizzle, or SQL DDL schemas into an ERD in under a second without an AI call or quota cost. · archdiagram.dev, 1 Oct 2026
- Self hosting
- Archway can be deployed on a customer's infrastructure with Docker Compose. · archdiagram.dev, 1 Oct 2026
- Service limit
- The API documentation lists per-minute request limits of 5 for free, 40 for Pro, 100 for Team, 150 for Team Pro, and 500 for Enterprise. · archdiagram.dev, 1 Oct 2026
- Support
- Pro includes priority support, Team Pro includes a priority support SLA, and Enterprise includes dedicated support. · archdiagram.dev, 1 Oct 2026
Where Archway stands on Freedom251
- AI Diagram Generators#2 of 32