RootUtils

JSON <> YAML

Client-Side Secure

Free online JSON to YAML Converter. Transform JSON data to YAML and back instantly. Validates syntax and errors. Simple, fast, and secure.

Input JSON0 bytes
Output YAML

Is this tool broken?

Let us know if you found a bug or have a feature request.

Online JSON to YAML Converter

Convert data seamlessly between JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language).

Essential for DevOps engineers working with Kubernetes manifests, Docker Compose files, or CloudFormation templates. Validate syntax instantly as you type.

Why JSON?

Pros: Strict syntax, easy for machines to parse, universally supported by APIs (REST/GraphQL).
Cons: No comments allowed, verbose due to braces/quotes.

Why YAML?

Pros: Human-readable, concise (indentation-based), supports comments. Standard for configuration files.
Cons: Strict indentation rules (no tabs allowed).

DevOps Ready

Easily convert API responses (JSON) into Kubernetes configs (YAML) or vice versa. Our parser supports multi-document streams and detects syntax errors in real-time.

Common Issues

YAML parsing error?

YAML strictly forbids tabs. Ensure you are using spaces for indentation. Our converter automatically outputs standard 2-space indentation to prevent this.

Can JSON have comments?

No. Standard JSON does not support comments. If you convert YAML with comments to JSON, the comments will be lost.