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YAML →JSON Converter

Convert between YAML and JSON instantly. Supports nested objects, arrays, multi-line strings, and anchor references. Everything runs in your browser · no server, no tracking.

Converter Tools Runs locally No data sent
YAML JSON DevOps client-side only no tracking
JSON indent:
YAML
0 chars
→
JSON
0 chars Parse error
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YAML →JSON: parses any valid YAML (including anchors & aliases) and outputs pretty-printed JSON. JSON →YAML: converts any valid JSON into clean, readable YAML. YAML comments are stripped during conversion as JSON has no comment syntax.

What is YAML to JSON Converter?

YAML to JSON Converter switches structured data between YAML and JSON so you can work in whichever format your toolchain expects. It is useful for config files, API payloads, CI pipelines, and debugging indentation-heavy YAML documents.

How to Use YAML to JSON Converter

  1. Paste YAML when you want JSON output, or switch modes for the reverse conversion.
  2. Review the parsed result and check for syntax errors if conversion fails.
  3. Adjust JSON indentation if you want compact or readable output.
  4. Copy the converted data into your app, config file, or deployment workflow.

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Understand YAML to JSON Converter ▾
Example
Input name: app env: stage: prod region: us-east-1
Output { "name": "app", "env": { "stage": "prod", "region": "us-east-1" } }
Common Use Cases
  • Convert configuration files between YAML and JSON during development
  • Inspect API payloads and deployment configs in the format your team prefers
  • Debug indentation-sensitive YAML by converting it into structured JSON
  • Prepare Kubernetes, CI, or app config snippets for different tooling
Why Use This Tool
  • Useful for configs, payloads, CI files, and Kubernetes manifests.
  • Helps reveal YAML structure issues by converting into explicit JSON objects.
  • Runs in the browser so config content stays local during conversion.
Frequently Asked Questions
Does this tool support nested objects and arrays?

Yes. The converter handles arbitrarily nested YAML structures including objects, arrays, strings, numbers, booleans, and None values.

Are YAML comments preserved in the JSON output?

No. JSON does not support comments, so any YAML comments are dropped during conversion.

Can I convert multi-document YAML files?

The tool converts a single YAML document at a time. Multi-document YAML (separated by ---) is not currently supported.

Is my data safe?

Yes. All processing happens entirely in your browser using JavaScript. No data is ever sent to a server.