Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · AI Diagram Generators

Eraser vs Mermaid Chart

  • 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
Mermaid Chart #7 in AI Diagram Generators 8.7/10 Free plan Free plan✓ 3 of 3 features Visit Mermaid Chart

Eraser leads on 0 checks, Mermaid Chart 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 featuresMermaid Chart · 3 of 3

Eraser scores higher on our rubric for ai diagram generators: 9.3 against 8.7 out of 10; our editors rank them #2 and #7.

Eraser is the better fit for teams needing broad diagram workflows. Mermaid Chart is the better fit for mermaid-centric collaborative teams.

  • Eraser fits best

    Teams needing broad diagram workflows

  • Mermaid Chart fits best

    Mermaid-centric collaborative 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 ↗ Mermaid Chart 8.7/10 Visit ↗
At a glance
Editor score 9.3 8.7
Ranking #2 in AI Diagram Generators #7 in AI Diagram Generators
Best for Teams needing broad diagram workflows Mermaid-centric collaborative teams
Pricing model Free plan + paid Free plan + paid
Starting price $15/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud
Platforms Web Web
Support Community, Docs, Email Docs
Compliance SOC 2, SSO/SAML SOC 2, SSO/SAML
Integrations 9 integrations 11 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Eraser 1/3 · Mermaid Chart 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, MMD
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
  • AI can generate, edit, and repair diagrams from prompts or uploaded files.
  • Synchronized visual and Mermaid code editing supports technical workflows.
  • Plugins, collaboration, permissions, and PNG, SVG, PDF, and MMD exports.
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 Basic plan allows up to three diagrams and limited AI usage.
  • Advanced collaboration and SSO are reserved for higher-tier plans.
  • The product is available as a web platform rather than a desktop app.
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 →

Mermaid Chart is a web-based diagramming platform for developers, technical teams, analysts, educators, and other users who create, edit, share, and present diagrams. Its core workflow combines Mermaid syntax with a visual editor, while AI…

Read the review →
  1. EraserAI Diagram Generators 9.3Free plan
  2. Mermaid ChartAI Diagram Generators 8.7Free 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

  • Mermaid Chart — where it wins

    • AI can generate, edit, and repair diagrams from prompts or uploaded files.
    • Synchronized visual and Mermaid code editing supports technical workflows.
    • Plugins, collaboration, permissions, and PNG, SVG, PDF, and MMD exports.

    Where it doesn't

    • The Basic plan allows up to three diagrams and limited AI usage.
    • Advanced collaboration and SSO are reserved for higher-tier plans.
    • The product is available as a web platform rather than a desktop app.

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