JSON to YAML

Convert JSON to YAML online. Paste or upload. Download or copy. 100% client-side.

Related Tools

What This JSON to YAML Tool Offers

This free converter turns JSON into YAML in your browser. Paste or upload JSON and get valid YAML 1.2. Choose 2 or 4 space indent for the output. Invalid JSON shows the error message, position or line, and a snippet—plus links to the JSON Formatter and Validator to fix syntax. Download or copy the YAML. All processing is client-side.

  • YAML 1.2: Output is valid YAML 1.2, compatible with common parsers and tools (e.g. Kubernetes, Docker Compose, GitHub Actions).
  • Indent option: Choose 2 or 4 spaces for YAML indentation. Line wrapping is disabled so long strings stay on one line.
  • Error details: Invalid JSON shows the parser error, position or line, and a snippet. Links to Formatter and Validator help you fix and convert again.
  • Paste or upload: Paste from clipboard or upload a .json file (including drag-and-drop). Clear button resets input and output.

    • Powered by browser APIs and client-side processing.

Why Convert JSON to YAML?

YAML is often used for configs, CI/CD pipelines, and Kubernetes manifests. Converting JSON to YAML lets you take API or app data and drop it into YAML-based workflows. The mapping is straightforward: objects become key-value blocks, arrays become lists. All conversion runs in your browser so your data stays private.

Options at a Glance

  • YAML indent: 2 spaces or 4 spaces per nesting level. Affects readability only; data is unchanged.
  • Line width: Output uses no line wrapping so long strings are not split across lines.
  • Download / Copy: Export the .yaml file or copy to clipboard. Use with our YAML to JSON tool for the reverse.

Frequently Asked Questions

Is my JSON data secure?

Yes. Conversion runs entirely in your browser. Your data never leaves your device and is not sent to any server.

What YAML version is the output?

Output is valid YAML 1.2. It can be read by common YAML parsers and tools (e.g. Kubernetes, Docker Compose, GitHub Actions).

What if my JSON is invalid?

You see the parser error, character position or line, and a snippet around the error. Links to the JSON Formatter and Validator help you fix syntax, then convert again.

Can I convert JSON from a file?

Yes. Use the file picker or drag-and-drop a .json file onto the input area. The file is read in your browser; nothing is uploaded.