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Eraser
Technical diagramming tool for software architecture, system design, and engineering docs.
Diagramming
Free
Overview
Eraser is a diagramming tool built specifically for engineers. It combines a canvas for architecture diagrams with a doc editor for technical specs. You can generate diagrams from text descriptions (diagram-as-code) or draw them manually.
Strengths
- Purpose-built for technical and architecture diagrams
- Diagram-as-code generates visuals from text descriptions
- Combines diagrams with technical documentation
- AI-powered diagram generation from natural language
Weaknesses
- Narrow focus — not for general brainstorming or design
- Smaller community than Excalidraw or Miro
- Some features still in development
- Limited template library compared to Lucidchart
Quick info
- Category
- Diagramming
- Starting price
- Free
- Free tier
- Fully free
- Open source
- No
- Founded
- 2021
Last updated 2026-04-12
Eraser vs Whimsical →
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