Mermaid vs Eraser
Mermaid is javaScript-based diagramming tool that renders diagrams from text definitions, while Eraser is technical design tool for architecture diagrams, design docs, and cloud diagrams. Mermaid is open source and can be self-hosted, giving you full control over your data. Mermaid is built for developers wanting text-based diagrams in markdown, whereas Eraser targets engineering teams wanting docs-as-diagrams.
| Feature | Mermaid | Eraser |
|---|---|---|
| Free tier available | ✓ | ✓ |
| Open source | ✓ | — |
| AI Diagram | — | ✓ |
| Architecture Diagrams | — | ✓ |
| Cloud Diagrams | — | ✓ |
| Docs | — | ✓ |
| Git-Friendly | ✓ | — |
| Many Chart Types | ✓ | — |
| Markdown | ✓ | — |
| Text-Based | ✓ | — |
Pricing: Both Mermaid and Eraser are free. You can try both without spending a dollar.
Feature gaps: Mermaid offers Git-Friendly, Many Chart Types and Markdown that Eraser lacks. Eraser brings AI Diagram, Architecture Diagrams and Cloud Diagrams that Mermaid does not have.
Team fit: Mermaid is geared toward individual users and small setups, while Eraser is aimed at small teams teams. Pick the one that matches where your team is today and where it is headed — migrating tools later is always painful.
Open source: Mermaid is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Eraser is proprietary — you are trusting the vendor with your data and uptime.
Where each tool shines: Mermaid's biggest strengths are: open source and transparent. includes text-based as a core feature, purpose-built for diagramming workflows. Eraser's biggest strengths are: includes architecture diagrams as a core feature, purpose-built for diagramming workflows. includes cloud diagrams as a core feature, purpose-built for diagramming workflows.
Watch out for: With Mermaid, users commonly note that may lack some advanced features. With Eraser, the main complaint is that free plan exists but key features are locked behind the paid upgrade.
choose Mermaid if
- Your profile matches its sweet spot: developers wanting text-based diagrams in markdown
- You need self-hosting, data sovereignty, or the ability to audit source code
- You specifically need Git-Friendly and Many Chart Types
- You care about includes text-based as a core feature, purpose-built for diagramming workflows
- Your team size fits the individuals profile Mermaid is designed for
choose Eraser if
- You need a tool built for engineering teams wanting docs-as-diagrams
- You specifically need AI Diagram and Architecture Diagrams
- You care about includes cloud diagrams as a core feature, purpose-built for diagramming workflows
- Your team size fits the small teams profile Eraser is designed for
- The free tier works for you: free for 5 documents
frequently asked
What is the difference between Mermaid and Eraser?
Mermaid is javaScript-based diagramming tool that renders diagrams from text definitions, while Eraser is technical design tool for architecture diagrams, design docs, and cloud diagrams. Mermaid is open source and can be self-hosted, giving you full control over your data. Mermaid is built for developers wanting text-based diagrams in markdown, whereas Eraser targets engineering teams wanting docs-as-diagrams.
Should I use Mermaid or Eraser?
Mermaid gives you open source and self-hosting; Eraser is a managed service. Which trade-off works for you?
When should I choose Mermaid over Eraser?
Choose Mermaid if Your profile matches its sweet spot: developers wanting text-based diagrams in markdown; You need self-hosting, data sovereignty, or the ability to audit source code; You specifically need Git-Friendly and Many Chart Types; You care about includes text-based as a core feature, purpose-built for diagramming workflows; Your team size fits the individuals profile Mermaid is designed for.
When should I choose Eraser over Mermaid?
Choose Eraser if You need a tool built for engineering teams wanting docs-as-diagrams; You specifically need AI Diagram and Architecture Diagrams; You care about includes cloud diagrams as a core feature, purpose-built for diagramming workflows; Your team size fits the small teams profile Eraser is designed for; The free tier works for you: free for 5 documents.
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