YAML ↔ JSON Converter
Convert between YAML and JSON instantly with smart formatting.
Private & Secure
Processing happens entirely in your browser. Your data never touches our servers.
Instant Conversion
Reactive engine converts as you type. No page reloads or waiting required.
Auto-Save
We remember your last state so you can pick up exactly where you left off.
Frequently Asked Questions
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data serialization language. It is extensively used for configuration files (like Docker, Kubernetes, and CI/CD pipelines) because it relies on simple indentation rather than complex brackets and quotation marks.
What is the difference between YAML and JSON?
While both are data serialization formats, JSON is strictly formatted with braces and quotes, making it ideal for fast, machine-to-machine APIs. YAML is designed to be highly readable by humans and supports comments. Interestingly, YAML 1.2 is a superset of JSON, meaning that any valid JSON file is also a valid YAML file.
Is my config data secure?
Absolutely. jtools.app performs all formatting and conversion locally right inside your browser. Your YAML and JSON data never touches our servers, keeping your private API keys, secrets, and configs completely secure.
Do conversions preserve comments?
No. When converting from YAML to JSON, any comments present in the YAML file are stripped out. This happens because the standard JSON specification does not natively support inline or block comments.