JSON to YAML Converter

Paste JSON and get clean YAML. The converter handles nested objects, arrays, multi-line strings (using literal block scalars), and produces YAML with proper indentation. Useful for generating configuration files from JSON data or converting API responses to YAML format.

JSON to YAML — Convert JSON documents to YAML

What it does

▸Converts JSON objects and arrays to YAML with proper indentation
▸Handles multi-line strings with literal block scalar syntax (|)
▸Preserves all JSON types: strings, numbers, booleans, null, nested objects, arrays
▸Configurable line width for wrapping long strings
▸Produces clean, human-readable YAML without unnecessary quoting

Use cases

▸Converting a JSON API response to YAML for a configuration file
▸Generating Kubernetes manifests from JSON templates
▸Creating YAML front matter from structured JSON data
▸Transforming JSON data into YAML for documentation purposes

How it works

Paste your JSON into the input pane

The tool parses the JSON and serializes it as YAML

The YAML output appears with proper indentation and structure

Copy the YAML for use in your configuration file or application

Frequently asked questions

1Does it preserve key order?

Yes. The converter preserves the key order from the JSON input. This matters for configuration files where key order has semantic meaning or is important for readability.

2How does it handle long strings?

Long strings can be output as literal block scalars (using |) for better readability. The line width setting controls when strings are wrapped. Short strings remain as plain scalars.

3Will the output YAML be valid?

Yes. The converter produces valid YAML that can be parsed back by any YAML parser. The output avoids common pitfalls like ambiguous unquoted strings by adding quotes where necessary.