YAML to JSON

Convert YAML to JSON and JSON back to YAML, in either direction. Paste your data on either side and convert instantly.

YAML

JSON

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Why use YAML to JSON?

This tool converts between YAML and JSON in either direction using the js-yaml library, entirely in your browser. It's useful for working with configuration files — like Kubernetes manifests or CI pipelines — that use YAML, when you need a JSON equivalent for scripting or debugging.

Key benefits

Bidirectional YAML/JSON conversion
Handles nested objects and arrays
Runs entirely in your browser

Features

YAML parsing and generation
Pretty-printed JSON output
Copy buttons for both formats

Popular use cases

Converting a Kubernetes or Docker Compose YAML file to JSON for a script
Turning a JSON API response into a YAML config file
Debugging YAML syntax by viewing its JSON equivalent

How to use YAML to JSON

1
Paste YAML or JSON
Enter your data in either the YAML or JSON panel.
2
Convert
Click "YAML → JSON" or "JSON → YAML" depending on the direction you need.
3
Copy the result
Use the Copy buttons to grab either format.

Frequently asked questions

Does this support complex YAML features like anchors and aliases?

The converter uses the widely-used js-yaml library, which supports standard YAML features including nested structures, lists, and most common syntax.

Is my data uploaded anywhere?

No. Conversion happens entirely in your browser.

Last reviewed: July 2026

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