Both tools offer AI diagram generation. InfraSketch adds auto design documents and chat refinement. Eraser focuses on whiteboarding and team collaboration.
Or try an example:
Describe your system in natural language
AI generates a complete architecture diagram
Refine your design through conversation
Watch your diagram update in real-time
Generate comprehensive design documentation
Complete workspace with all panels
Manage multiple designs with session history
Interactive tutorial guides you through the basics
Smart suggestions help you iterate on your design
Organize components into collapsible groups
Expand groups to see all components
Choose between Speed and Power models
Eraser generates diagrams. InfraSketch generates diagrams and comprehensive design documents. InfraSketch also lets you refine your architecture through natural conversation, while Eraser is more focused on visual collaboration and whiteboarding.
| Feature | InfraSketch | Eraser |
|---|---|---|
| AI Diagram Generation | ✓ | ✓ |
| Natural Language Input | ✓ | ✓ |
| Auto Design Document Generation | ✓ | ✗ |
| Chat-Based Refinement | ✓ | ✗ |
| Real-Time Collaboration | ✗ | ✓ |
| Whiteboard Mode | ✗ | ✓ |
| Cloud Provider Icons | ✓ | ✓ |
| Export to PNG | ✓ | ✓ |
| Export to PDF | ✓ | ✓ |
| Markdown Export | ✓ | ✓ |
| Free Tier | ✓ | ✓ |
| Pricing | Free tier available | Free tier, paid from $10/mo |
AI System Design Tool with Auto Documentation
Technical Diagramming and Whiteboarding
Eraser is a technical documentation and diagramming tool that includes DiagramGPT, an AI feature that generates diagrams from text descriptions. It focuses on whiteboarding and real-time collaboration for engineering teams.
Both tools offer AI diagram generation. The key difference is that InfraSketch generates comprehensive design documents in addition to diagrams, and offers chat-based refinement to iterate on your architecture. Eraser focuses more on whiteboarding and team collaboration.
InfraSketch is optimized for system design practice. You can describe systems, get instant diagrams, refine through chat, and generate design documents. This workflow mirrors actual interview scenarios better than whiteboard-focused tools.
No, Eraser focuses on diagrams and whiteboard collaboration. InfraSketch is the only AI tool that generates both architecture diagrams AND comprehensive design documents from the same input.
While there is no direct import feature, you can recreate any system architecture by describing it in InfraSketch. The AI will generate the diagram and you can refine it through chat to match your existing design.
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