Eraser AI, Joute's Review

The essentials in 20 seconds

• Technical diagramming tool for devs: architecture, sequence, ERD, flowchart
• AI generation from natural language or source code
• Mermaid, C4, ERD support and proprietary format
• Price: $10/month

Verdict: Eraser is the best diagramming tool for engineering teams. AI generation from code (architecture inferred from existing code) is particularly well done.

What is Eraser AI

Eraser is a technical documentation and diagramming tool designed for developers and engineering teams. You can create system architecture diagrams, sequence diagrams, ERDs, and flowcharts via a graphical interface or by writing diagram code (Mermaid, ErDiagram).

The AI lets you generate diagrams from a text description or infer an architecture from existing code.

Strengths

Generation from source code

You paste Python, TypeScript, or SQL code and Eraser infers an architecture diagram or ERD. Useful for quickly documenting existing codebases.

Native Mermaid support

If you already write Mermaid diagrams in your READMEs or Confluence, Eraser is natively compatible. No need to learn a new format.

Real-time collaboration

Like Figma, multiple people can edit a diagram simultaneously. Useful for team architecture sessions.

Limitations

Limited to technical diagrams

Eraser is not Miro. Presentations, wireframes, or mind maps are out of scope. That's intentional.

Less feature-rich than Lucidchart

For very complex diagrams with many interactions, Lucidchart remains more complete.

Pricing

• Free: limited projects
• Pro: $10/month
• Teams: $15/month per seat

Alternatives

• Mermaid for diagrams directly in Markdown, free
• Lucidchart for the most complete diagram suite
• Excalidraw for quick, free collaborative diagrams

Verdict

Eraser is the technical documentation tool engineering teams should use. AI generation from code is unique and genuinely useful for creating documentation on existing codebases.

FAQ

Can Eraser generate C4 diagrams?

Yes. The C4 format (Context, Container, Component, Code) is supported for system architecture.

Is there a VS Code extension?

Yes. A VS Code extension is available to access Eraser directly from the IDE.

Does Eraser support import from Miro or Confluence?

Import is limited. Eraser is primarily designed for creating diagrams, not for migrating from other tools.

Joute may earn a commission if you sign up via our links. Learn more about our affiliate policy.