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Head-to-head · AI Diagram Generators

Eraser vs Diagrams.so

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Eraser #2 in AI Diagram Generators 9.3/10 Free plan Free plan✓ 1 of 3 features Visit Eraser
Diagrams.so #8 in AI Diagram Generators 8.6/10 Free plan Free plan✓ 1 of 3 features Visit Diagrams.so

Eraser leads on 0 checks, Diagrams.so on 1, and 4 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreEraser · 9.3/10
  • Lowest starting priceDiagrams.so · $10/mo
  • Free planboth

Eraser scores higher on our rubric for ai diagram generators: 9.3 against 8.6 out of 10; our editors rank them #2 and #8.

Diagrams.so is cheaper to start at $10/user/mo against $15/user/mo.

Eraser is the better fit for teams needing broad diagram workflows. Diagrams.so is the better fit for draw.io architecture diagram users.

  • Eraser fits best

    Teams needing broad diagram workflows

  • Diagrams.so fits best

    Draw.io architecture diagram users

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Side by side

Feature Eraser 9.3/10 Visit ↗ Diagrams.so 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #2 in AI Diagram Generators #8 in AI Diagram Generators
Best for Teams needing broad diagram workflows Draw.io architecture diagram users
Pricing model Free plan + paid Free plan + paid
Starting price $15/user/mo $10/mo (best)
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Browser extension
Platforms Web Web
Support Community, Docs, Email Email, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Eraser 1/3 · Diagrams.so 1/3
Mermaid support Not checked yet —
Real-time collaboration ✓ (best) Not checked yet
Diagram import Not checked yet ✓ (best)
Specs
AI diagram limit Not checked yet Not checked yet
Platform Not checked yet Web
Export formats PNG, SVG, PDF, PowerPoint, Google Slides, BPMN, Visio, draw.io, Markdown .drawio, PNG, SVG, PDF, JPG
Our review
Pros
  • Generates diagrams from prompts, images, files, and code
  • Supports imports, exports, collaboration, and version history
  • Connects with GitHub, Notion, Confluence, and VS Code
  • Generates editable Draw.io diagrams from natural-language descriptions
  • Includes architecture warnings, validation, and version history
  • Offers REST API, MCP server, and Python and TypeScript SDKs
Cons
  • Free plan is limited to 3 files and 3 AI diagrams
  • Starter limits version history to 90 days
  • SAML SSO is available on the Business plan
  • Free exports are watermarked
  • Free plan requires a BYO LLM key
  • Does not support Mermaid
Our verdict

Eraser is a collaborative diagramming and documentation tool for engineering and technical teams. It supports AI-generated workflows and diagram-as-code for flow charts, entity relationship diagrams, cloud architecture diagrams, sequence…

Read the review →

Diagrams.so is a browser-based AI diagram generator for architects, DevOps engineers, technical founders, and engineering teams. It turns natural-language descriptions into editable Draw.io diagrams and supports AWS, Azure, GCP, and…

Read the review →
  1. EraserAI Diagram Generators 9.3Free plan
  2. Diagrams.soAI Diagram Generators 8.6Free plan

Strengths and trade-offs

  • Eraser — where it wins

    • Generates diagrams from prompts, images, files, and code
    • Supports imports, exports, collaboration, and version history
    • Connects with GitHub, Notion, Confluence, and VS Code

    Where it doesn't

    • Free plan is limited to 3 files and 3 AI diagrams
    • Starter limits version history to 90 days
    • SAML SSO is available on the Business plan
  • Diagrams.so — where it wins

    • Generates editable Draw.io diagrams from natural-language descriptions
    • Includes architecture warnings, validation, and version history
    • Offers REST API, MCP server, and Python and TypeScript SDKs

    Where it doesn't

    • Free exports are watermarked
    • Free plan requires a BYO LLM key
    • Does not support Mermaid

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update