Eraser
Technical design tool for architecture diagrams, design docs, and cloud diagrams.
Overview
Eraser is a technical design tool for architecture diagrams, design docs, and cloud diagrams. It handles architecture diagrams, cloud diagrams, docs, and ai diagram, and it's best suited for engineering teams wanting docs-as-diagrams. Launched in 2022, it's a relatively recent entrant that's been gaining traction.
The free plan is free for 5 documents — enough for most people to evaluate whether it fits. It's designed for small teams, striking a balance between simplicity and collaboration features.
Strengths
- Includes Architecture Diagrams as a core feature, purpose-built for diagramming workflows
- Includes Cloud Diagrams as a core feature, purpose-built for diagramming workflows
- Free for 5 documents — generous enough for most small teams to get real work done
- Includes docs alongside the core feature set — fewer separate tools needed
Weaknesses
- Free plan exists but key features are locked behind the paid upgrade
- Fewer built-in features means you may need additional tools to cover gaps
- Ecosystem of third-party integrations is smaller than the market leaders in diagramming
- Limited team/admin features if your organization eventually scales up
Quick info
- Category
- Diagramming
- Starting price
- Free
- Free tier
- Yes — Free for 5 documents
- Open source
- No
- Best for
- Small teams
- Founded
- 2022
Last updated 2026-04-12
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