MyWebUtils: Free Online Dev Tools

YAML ↔ JSON Converter
Convert data between YAML and JSON formats.
About the YAML ↔ JSON Converter

YAML vs. JSON: Two Sides of the Same Coin

Both YAML (YAML Ain't Markup Language) and JSON (JavaScript Object Notation) are data serialization formats used to represent structured data. While they can represent the same information, they have different syntax and are preferred in different contexts.

  • JSON is stricter, using brackets, braces, and quotes. It is excellent for machine-to-machine communication and is the native format for web APIs.
  • YAML is more human-readable, using indentation and minimal syntax. It is favored for configuration files where readability and ease of editing are paramount.

Why Do You Need to Convert Between Them?

Developers frequently need to switch between YAML and JSON for various tasks:

  • DevOps & Configuration: Tools like Kubernetes, Docker Compose, and GitHub Actions use YAML for their configuration files. You might need to convert this YAML to JSON to programmatically interact with it or send it to an API.
  • API Development: You might write an API specification in human-readable YAML (like OpenAPI/Swagger) but need to provide the final, machine-readable spec in JSON.
  • Data Transformation: Converting JSON from an API response into YAML can make it easier to read, debug, and store as a configuration or fixture file.
  • Tool Interoperability: Some tools or libraries may only accept one format. This converter acts as a bridge, ensuring you can use your data wherever you need it.

How Our Converter Works

Our tool provides a seamless and instant conversion process, powered by robust parsing libraries to ensure accuracy.

  • Choose Your Direction: Simply select whether you want to convert "YAML to JSON" or "JSON to YAML".
  • Paste and See: Paste your source data into the input box, and the converted output will appear in real-time in the output box.
  • Error Highlighting: If your source data has a syntax error (e.g., invalid JSON or improper YAML indentation), the tool will flag the error to help you fix it quickly.