Diagrams.so
Diagrams.so turns written descriptions into editable architecture diagrams in Draw.io format.
What Diagrams.so is
Diagrams.so turns written descriptions into editable architecture diagrams in Draw.io format. It can create flowcharts, sequence diagrams, entity relationship diagrams and cloud infrastructure diagrams, using official AWS, Azure, Google Cloud Platform and Kubernetes icon libraries alongside network, database, security and general-purpose shapes. Opinionated Mode can propose missing components, while architecture warnings flag risks such as single-availability-zone deployments or publicly exposed resources. Users can export diagrams as .drawio XML, PNG or SVG; .drawio files also open in Draw.io, Confluence, VS Code and Notion. The service provides a REST API, MCP server, and Python and TypeScript SDKs, with Claude, Cursor and VS Code listed as MCP clients. Free users can import .drawio files, but their diagrams are public and appear in the community gallery. The Free plan has five credits, requires a BYO LLM key and watermarks exports. Pro costs $10/mo (annual) and Power costs $16.67/mo (annual); private diagrams are available on both paid plans.
Good
- Creates several architecture diagram types from descriptions
- Includes official major cloud and Kubernetes icon libraries
- Can suggest missing components and flag architecture risks
- Supports diagram imports and version history
Watch out
- Free-plan diagrams are public
- Free exports include a watermark
- Free plan requires a BYO LLM key
- Very large diagrams may take longer to generate or open
Who it suits
It suits cloud architects, DevOps engineers and technical teams who want to create or revise architecture diagrams from text. Teams that need private diagrams or clean exports will need Pro or Power.
Verdict
Diagrams.so combines text-driven diagram creation with architecture warnings, imports and developer integrations. Check the free plan’s public-gallery and watermark limits before using it for private work or clean exports.
Plans and prices
From Diagrams.so's own pricing page, checked 7 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 5 credits · BYO LLM key · watermarked exports · free .drawio imports |
| Pro | $10 a year | 75 credits / month · private diagrams · clean exports without watermark · one-click Fix all issues · when billed annually; or $15/mo billed monthly |
| Power | $16.67 a year | 250 credits / month · image, PDF and DOCX to diagram · priority generation queue · priority support · when billed annually; or $25/mo billed monthly |
The facts
Each one read from Diagrams.so's own pages, with the date it was checked.
What it does
- Architecture assistance
- Opinionated Mode suggests missing components, while non-blocking architecture warnings flag risks such as single-AZ deployments and publicly exposed resources.checked 7 Oct 2001
- Cloud icon libraries
- It supports official AWS, Azure, Google Cloud Platform and Kubernetes icon libraries, plus network, database, security and general-purpose shapes.checked 7 Oct 2001
- Compliance
- Diagrams.so says it follows SOC 2-aligned security practices but is not currently certified against SOC 2, HIPAA or PCI-DSS.checked 7 Oct 2001
- Data residency
- The maker says all data is stored in AWS US regions and EU data residency options are on its roadmap.checked 7 Oct 2001
- Diagram types
- It generates flowcharts, sequence diagrams, ERDs and cloud infrastructure diagrams.checked 7 Oct 2001
- Formats and compatibility
- Diagrams export as .drawio XML, PNG or SVG, and the .drawio files open in Draw.io, Confluence, VS Code and Notion.checked 7 Oct 2001
- Import and history
- Users can import .drawio files for free on every plan and use version history to compare or restore diagram versions.checked 7 Oct 2001
- Integrations
- The product offers a REST API, MCP server, and Python and TypeScript SDKs, and names Claude, Cursor and VS Code as MCP clients.checked 7 Oct 2001
- Intended users
- The maker describes the product as purpose-built for cloud architects, DevOps engineers and technical teams.checked 7 Oct 2001
- Privacy limits
- Free-tier diagrams are public and appear in the community gallery; private diagrams are available on Pro and Power.checked 7 Oct 2001
- Security
- The maker says data is encrypted in transit with TLS 1.3 and at rest with AES-256, and that it does not train AI models on customer diagrams or prompts.checked 7 Oct 2001
- Support
- The Power plan includes priority support, and the About page lists [email protected] for questions, feedback and partnership inquiries.checked 7 Oct 2001
- Usage limits
- The FAQ says prompts are limited to 30,000 characters, custom icon sets are not supported in the generator, and very large diagrams may take longer to generate or open.checked 7 Oct 2001
- What it does
- Diagrams.so turns natural-language descriptions into editable architecture diagrams in native Draw.io format.checked 7 Oct 2001
The company
- Headquarters
- Richmond, Virginia, USAchecked 28 Sep 2001
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