Is my data uploaded to any server?

No. The parsing and formatting are executed locally using js-yaml inside your web browser. No config data is ever transmitted over the network.

What version of YAML does it support?

This converter supports YAML 1.2 specifications, which is fully compatible with standard JSON payloads.

YAML to JSON & JSON to YAML Converter

Translate configuration syntaxes back and forth instantly in your browser tab. Safe, local, and 100% private.

YAML Input

JSON Output

Frequently Asked Questions

What is YAML?

YAML (YAML Ain't Markup Language) is a human-readable data-serialization language. It is commonly used for configuration files in deployment pipelines, Docker environments, Kubernetes manifests, and settings structures.

Why convert between YAML and JSON?

JSON is the native standard for web APIs, while YAML is preferred for configuration files because it supports comments and clean nested spacing without brackets. Converting lets you feed config files into JSON APIs.

Are comments preserved?

YAML comments are not part of standard data models, so converting YAML to JSON will strip comments. When converting back from JSON to YAML, the comments will not reappear.

How secure is my data?

Extremely secure. The conversion runs in your browser via Javascript. No data leaves your machine or is logged to a server.