Format & Convert

YAML JSON Converter

Convert YAML to JSON and JSON back to YAML locally.

Runs in your browser

Input

Output Ready

About YAML JSON Converter

The YAML JSON Converter helps move configuration data between human-friendly YAML and machine-friendly JSON while preserving arrays, objects, numbers, strings, booleans, and null values.

Common uses

Convert Kubernetes or CI snippets to JSON for tooling that only accepts JSON.
Turn JSON examples into YAML for documentation or configuration guides.
Check whether nested indentation represents the structure you intended.

Good to know

When converting YAML, keep indentation consistent and quote values that should remain strings, such as version numbers or IDs with leading zeroes.

How to compare YAML and JSON

Convert in both directions when reviewing configuration so you can catch indentation mistakes, unexpected arrays, and values that changed type. YAML can read some unquoted values as booleans or numbers even when you meant plain text.

Good samples to test

Use small samples that include nested objects, lists, empty values, and strings with punctuation. Those cases reveal most conversion problems before you paste a larger Kubernetes, CI, or application configuration file.

Common mistakes

Tabs, inconsistent indentation, and unquoted strings such as version numbers can produce surprising output. Quote values that must stay exact, especially identifiers with leading zeroes.

Before you rely on the output

Use representative samples and validate the result in the target parser or application before replacing production configuration or data files.
Privacy mode: inputs are processed locally in your browser and are not intentionally sent to an application server.