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JSON YAML Converter

Bidirectional conversion between JSON and YAML formats with custom indentation and flow/block styles

About JSON-YAML Converter

JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language) are two popular data serialization formats widely used in configuration files, data exchange, and API development.

This converter allows you to easily convert between JSON and YAML formats. YAML uses indentation-based syntax that is more human-readable, while JSON is more compact and widely supported in programming languages.

Key Features

Bidirectional conversion: JSON to YAML and YAML to JSON
Custom indent support (2 spaces, 4 spaces, or tab)
Support for YAML flow style and block style
Syntax validation and error reporting
Preserve data types (strings, numbers, booleans, null)
Direct download of converted files

JSON Format Features

Compact syntax using braces and brackets
All keys and string values require quotes
Widely supported in all programming languages
Suitable for API data exchange

YAML Format Features

Human-readable indentation-based syntax
Most strings don't require quotes
Support for comments (using # symbol)
Suitable for configuration files (Docker, Kubernetes)

Common Use Cases

Convert configuration files between formats (Docker, Kubernetes, CI/CD)
Convert API responses to readable YAML
Generate JSON from YAML configuration templates
Data migration between different systems

Frequently Asked Questions

Why use YAML instead of JSON?

YAML is often more readable and supports comments, making it ideal for configuration files like Docker Compose and Kubernetes manifests. JSON is stricter and better suited for API data exchange.

Is the conversion logic secure?

Yes. This tool processes all data entirely in your browser using JavaScript. Your sensitive configuration files are never sent to any server.

What happens to comments when converting YAML to JSON?

Standard JSON does not support comments. Therefore, any comments in YAML input will be lost when converted to JSON.

Does it support complex nested structures?

Yes, both JSON and YAML support deeply nested objects and arrays. This converter can accurately handle complex data structures.

Data is processed locally in your browser by default and will not be uploaded to any server. Upload will be clearly indicated if required.

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