{
  "domain": "mermaid.ai",
  "company": "Mermaid Chart",
  "aliases": [],
  "category": "diagramming_whiteboards",
  "url": "https://thebiasindex.com/mermaid.ai/",
  "summary": "A typical compare page from Mermaid Chart raises 2.3 of our five red flags. We found 5 candidate pages on Mermaid Chart’s website, of which 3 are compare pages. Those are the ones we score. Together they add up to 7 red flags, the 96th most of the 98 companies we rank.",
  "status": "ok",
  "rank": 96,
  "fair_player": false,
  "red_flags_total": 7,
  "red_flags_per_page": 2.33,
  "compare_pages": 3,
  "candidate_pages": 5,
  "run_date": "2026-10-30",
  "methodology": {
    "version": "v8",
    "url": "https://thebiasindex.com/methodology/"
  },
  "source": "https://github.com/WhimsicalCode/thebiasindex.com",
  "questions": [
    {
      "id": "q1",
      "label": "Wins on everything",
      "question": "Does the page claim the vendor wins or ties on everything it compares?"
    },
    {
      "id": "q2",
      "label": "Never says when to pick the rival",
      "question": "Does the page leave out every situation where a competitor would be the better choice?"
    },
    {
      "id": "q3",
      "label": "Admits no weakness",
      "question": "Does the page avoid saying anything the vendor's own product can't do or does poorly?"
    },
    {
      "id": "q4",
      "label": "Vague attacks",
      "question": "Are the criticisms of competitors vague, with no specifics, numbers or sources?"
    },
    {
      "id": "q5",
      "label": "Rival gets more criticism",
      "question": "Does the competitor get clearly more criticism than the vendor's product?"
    }
  ],
  "pages": [
    {
      "url": "https://mermaid.ai/comparison/mermaid-vs-whimsical/",
      "title": "Mermaid vs. Whimsical",
      "red_flags": 3,
      "answers": {
        "q1": "no",
        "q2": "yes",
        "q3": "yes",
        "q4": "unclear",
        "q5": "yes"
      }
    },
    {
      "url": "https://mermaid.ai/comparison/mermaid-vs-draw-io/",
      "title": "Mermaid vs. Draw.io",
      "red_flags": 2,
      "answers": {
        "q1": "unclear",
        "q2": "yes",
        "q3": "no",
        "q4": "no",
        "q5": "yes"
      }
    },
    {
      "url": "https://mermaid.ai/comparison/mermaid-vs-plantuml/",
      "title": "Mermaid vs. PlantUML",
      "red_flags": 2,
      "answers": {
        "q1": "unclear",
        "q2": "yes",
        "q3": "no",
        "q4": "unclear",
        "q5": "yes"
      }
    }
  ],
  "other_candidate_pages": [
    {
      "url": "https://mermaid.ai/blog/posts/mermaid-chart-vs-code-plugin-create-and-edit-mermaid-js-diagrams-in-visual-studio-code",
      "title": "Mermaid VS Code Plugin: Create and Edit Mermaid.js Diagrams in Visual Studio Code",
      "type": "other",
      "what_it_is": "Something else"
    },
    {
      "url": "https://mermaid.ai/blog/posts/the-essential-guide-to-mermaid-chart-plugin-for-vs-code-08-2025",
      "title": "The Essential Guide to Mermaid Chart Plugin for VS Code [08/2025]",
      "type": "other",
      "what_it_is": "Something else"
    }
  ]
}