At a glance

FigJam Eraser
Best for Figma users wanting collaborative brainstorming and diagramming Engineering teams creating architecture diagrams and technical documentation
Starting price Free Free
Free tier
Open source
Free tier available
Open source
AI generation
Architecture diagrams
Diagram-as-code
Sticky Notes
Technical docs
Voting
Whiteboard
Widgets

FigJam

Strengths

  • Infinite whiteboard canvas for brainstorming and visual thinking
  • Sticky notes and drawing tools make remote workshops feel hands-on
  • Free for 3 FigJam files — generous enough for most small teams to get real work done
  • Includes voting 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
  • Relatively new (founded 2021) — the feature set and integrations are still maturing

Eraser

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

The bottom line

Pricing: Both FigJam and Eraser are free. You can try both without spending a dollar.

Feature gaps: FigJam offers Sticky Notes, Voting and Whiteboard that Eraser lacks. Eraser brings AI generation, Architecture diagrams and Diagram-as-code that FigJam does not have.

Where each tool shines: FigJam's biggest strengths are: infinite whiteboard canvas for brainstorming and visual thinking. sticky notes and drawing tools make remote workshops feel hands-on. Eraser's biggest strengths are: purpose-built for technical and architecture diagrams. diagram-as-code generates visuals from text descriptions.

Watch out for: With FigJam, users commonly note that free plan exists but key features are locked behind the paid upgrade. With Eraser, the main complaint is that narrow focus — not for general brainstorming or design.

Choose FigJam if...

  • You need a tool built for figma users wanting collaborative brainstorming and diagramming
  • You specifically need Sticky Notes and Voting
  • You care about sticky notes and drawing tools make remote workshops feel hands-on
  • The free tier works for you: free for 3 figjam files

Choose Eraser if...

  • You need a tool built for engineering teams creating architecture diagrams and technical documentation
  • You specifically need AI generation and Architecture diagrams
  • You care about diagram-as-code generates visuals from text descriptions

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