Your code already knows the architecture. Paste what encodes it or connect the repository, and the AI draws a system-level diagram you can edit, export, and keep in sync.
No sign-up required • Free to try
Paste what encodes the architecture and the AI draws it now, or connect the repo and Datadef reads the code, generates the diagram, and re-syncs it daily as the code changes.
Paste the files that encode the architecture and get a diagram now, or connect the GitLab project and Datadef reads the code, draws the diagram, and keeps it synced daily.
Paste your CloudFormation template, or let a coding agent read it through MCP, and get an editable AWS diagram of the resources it creates.
Common questions about codebase architecture diagram generator
The AI reads what encodes the system rather than parsing every import: compose files, IaC, CI config, folder structure, service entry points. From that it draws a system-level picture of what runs, what talks to what, and where state lives, on a canvas you can edit and refine with follow-up instructions.
Connect the repository through the repo sync feature. Datadef supports GitHub, GitLab, and Azure DevOps cloud repos, connected with a public URL or a read-only token, one branch or tag per diagram. A daily sync re-reads the code and regenerates the diagram, with manual refresh and MCP tools when you want it now, and the generated architecture doc embeds the live diagram when it is public. This is a paid-plan feature with a 7-day free trial, no card required.
No. The output is system architecture: services, databases, queues, third-party APIs, and the connections between them. For class-level structure or call graphs, a static-analysis tool tied to your language is the better fit.
Yes. Datadef ships an MCP server, so Claude Code, Cursor, or any MCP client with your repository open can drive the canvas directly and draw what it finds, using its full context of the code.
Signing up starts a 7-day free trial of every Pro feature. No card needed.