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Head-to-head · AI Diagram Generators

Eraser vs LetDraw

  • Updated Oct 2026
  • Both researched from official sources
  • 4 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
LetDraw #4 in AI Diagram Generators 9.1/10 Free plan Free plan✓ 3 of 3 features Visit LetDraw

Eraser leads on 0 checks, LetDraw on 0, and 4 are even. Who comes out ahead on the 4 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
  • Free planboth
  • Most featuresLetDraw · 3 of 3

Eraser scores higher on our rubric for ai diagram generators: 9.3 against 9.1 out of 10; our editors rank them #2 and #4.

Eraser is the better fit for teams needing broad diagram workflows. LetDraw is the better fit for budget-conscious technical teams.

  • Eraser fits best

    Teams needing broad diagram workflows

  • LetDraw fits best

    Budget-conscious technical teams

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Eraser 9.3/10 Visit ↗ LetDraw 9.1/10 Visit ↗
At a glance
Editor score 9.3 9.1
Ranking #2 in AI Diagram Generators #4 in AI Diagram Generators
Best for Teams needing broad diagram workflows Budget-conscious technical teams
Pricing model Free plan + paid Free plan + paid
Starting price $15/user/mo $50/yr
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Community, Docs, Email Email, Community, Docs
Integrations 9 integrations 2 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Eraser 1/3 · LetDraw 3/3
Mermaid support Not checked yet ✓ (best)
Real-time collaboration ✓ ✓
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 PNG, SVG, PDF, Mermaid, D2, WebM
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 diagrams from prompts, images, voice, and technical sources
  • Supports Mermaid, D2, Docker Compose, Kubernetes, Terraform, SQL, and OpenAPI
  • Combines collaboration, API/MCP access, offline use, and Enterprise self-hosting
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
  • The Free plan includes only 3 AI prompts
  • The paid plans do not state a numeric monthly AI diagram quota
  • Advanced identity and provisioning features are limited to Enterprise
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 →

LetDraw is a browser-based whiteboard and diagramming tool for engineers, DevOps teams, data teams, and other software-focused groups. Its AI can generate editable diagrams from text prompts, images, and voice, as well as from sources…

Read the review →
  1. EraserAI Diagram Generators 9.3Free plan
  2. LetDrawAI Diagram Generators 9.1Free 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

  • LetDraw — where it wins

    • Generates editable diagrams from prompts, images, voice, and technical sources
    • Supports Mermaid, D2, Docker Compose, Kubernetes, Terraform, SQL, and OpenAPI
    • Combines collaboration, API/MCP access, offline use, and Enterprise self-hosting

    Where it doesn't

    • The Free plan includes only 3 AI prompts
    • The paid plans do not state a numeric monthly AI diagram quota
    • Advanced identity and provisioning features are limited to Enterprise
  • Eraser9.3/10 · Free plan

    A broad diagram workspace combining AI, diagram-as-code, collaboration, and integrations.

    Visit EraserFull verdict →
  • LetDraw9.1/10 · Free plan

    A low-cost technical diagramming workspace with AI, collaboration, and developer-friendly imports.

    Visit LetDrawFull verdict →

More comparisons

All AI diagram generators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update