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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