JSONToonPro
Open Converter
JSON converter tool

JSON to YAML Converter Online

Convert JSON objects, arrays, and configuration data to clean YAML instantly, or switch directions and convert YAML back to JSON. Choose indentation, quote strings when needed, sort keys for stable diffs, and download a ready to use YAML file. Everything runs locally in your browser.

100% client sideYAML to JSONCopy and download
Indent
34 nodes
Input/ JSON
420 chars25 lines
Output/ YAML
295 chars20 lines

How to convert JSON to YAML

Three steps, zero setup
01

Paste or upload JSON

Add a JSON object, array, or config payload into the input panel. Use the sample button to load realistic service config data.

02

Tune YAML formatting

Choose indentation, quote strings when needed, and sort keys for stable config diffs.

03

Copy or download YAML

The YAML output updates live as you type. Copy it into your config file or download a ready to use .yaml document.

Built for config-heavy work

Format JSON API payloads, deployment settings, and app config data into readable YAML without sending private values anywhere.

100% client side

Private configs stay in your browser. No upload pipeline, no server storage.

Live conversion

Convert JSON to YAML as you type with clear errors for invalid input.

Formatting controls

Switch indentation, quote strings, or sort keys for predictable output.

Nested data ready

Objects, arrays, booleans, numbers, nulls, and empty structures are preserved.

YAML to JSON

Reverse common YAML config data back into clean JSON with one click.

Config workflow

Copy YAML or download a ready to use file for config and deployment work.

Frequently asked questions

7 answers
Paste valid JSON into the input panel or upload a .json file. The YAML output is generated instantly in the right panel. You can choose 2-space or 4-space indentation, quote strings, sort keys, copy the result, or download a .yaml file.

YAML to JSON Converter

Need to convert YAML back to JSON? Use the YAML to JSON tab or click Swap. Paste any YAML config file including Kubernetes manifests, Docker Compose files, and GitHub Actions workflows and get clean JSON output instantly. The parser supports YAML mappings, lists, strings, numbers, booleans, and null values.

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