YAML to JSON Converter Online

Convert between YAML and JSON formats with validation. Essential for Docker, Kubernetes, and CI/CD config management.

How to Use

  1. 1

    Paste data

    Paste YAML or JSON content into the input editor.

  2. 2

    Choose direction

    Select YAML→JSON or JSON→YAML conversion mode.

  3. 3

    Convert & copy

    Click Convert and copy the output.

FAQ

Are YAML comments preserved when converting to JSON?

No. JSON does not support comments, so YAML comments (lines starting with #) are discarded during conversion to JSON. Converting back to YAML will not restore them.

When should I use YAML vs JSON?

Use YAML for human-edited config files (Docker Compose, Kubernetes, GitHub Actions) — it supports comments and is more readable. Use JSON for API data exchange and machine-generated configs where strict parsing is needed.