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CI/CD Visualization

GitHub Actions Visualizer

Visualize GitHub Actions workflow YAML using Mermaid.js. Analyzes job dependencies (needs) and displays them as a flowchart.

Guide: How to use & features

  • Paste your GitHub Actions YAML into the "Enter Workflow YAML" box.
  • Click the "Visualize" button to render the diagram on the right.
  • Dependencies between jobs (needs) are drawn as arrows (-->).
  • Click "Copy Mermaid Code" to get code you can use in GitHub Markdown or other Mermaid-supported tools.

Samples: Sample input & output

Basic job dependencies

Input

jobs:
  build:
    runs-on: ubuntu-latest
  test:
    needs: build
    runs-on: ubuntu-latest
  deploy:
    needs: test
    runs-on: ubuntu-latest

Output

graph TD
  build
  test
  build --> test
  deploy
  test --> deploy

FAQ: Frequently asked questions

  • Can it visualize large workflows?

    Yes, but for workflows with a very large number of jobs (dozens or more), the diagram may become quite large and difficult to read. In such cases, consider visualizing smaller, logical chunks of your workflow.

  • Does it support dependencies other than "needs"?

    Currently, the tool only visualizes job-level dependencies defined by the "needs" property. Individual steps within jobs are not visualized.

  • Is my YAML data secure?

    Absolutely. All processing occurs locally in your browser. No data is sent to our servers, making it safe for private or enterprise workflow configurations.

Use cases: Common use cases

  • Understanding Workflow Dependencies

    Visualize job connections through `needs` to intuitively understand execution order and potential bottlenecks.

  • Supporting Pull Request Reviews

    Visualize changed YAML and share the diagram to help reviewers quickly grasp changes in job configuration.

  • Steamlining Documentation

    Generate Mermaid code to embed in GitHub READMEs or Wikis, keeping your workflow diagrams up to date effortlessly.
graph TD A[Start] --> B[Input YAML] B --> C[Visualize]

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