YAML ↔ JSON Converter

Convert YAML to JSON or JSON to YAML directly in your browser.

YAML Input

JSON Output

About YAML ↔ JSON Converter

Convert structured data between YAML and JSON formats directly in your browser.

How to use YAML ↔ JSON Converter

Choose YAML → JSON or JSON → YAML.
Paste your YAML or JSON data into the input field.
Click Convert to convert the data.
Review the converted data in the output panel.
Click Copy to copy the converted result.

What is YAML?

YAML is a human-readable data serialization format commonly used for configuration files and structured data. YAML uses indentation and simple syntax to represent objects, arrays, strings, numbers and other values.

YAML is commonly found in application configuration files, Docker Compose files, CI/CD configuration and development tools.

What is JSON?

JSON stands for JavaScript Object Notation. It is a structured text format commonly used for data exchange between applications, APIs and web services.

JSON represents data using objects, arrays, strings, numbers, booleans and null values.

YAML vs JSON

Feature

YAML

JSON

Readability

Human-friendly

Structured and explicit

Common use

Configuration

APIs and data exchange

Syntax

Indentation-based

Braces and brackets

File extension

.yaml / .yml

.json

YAML to JSON Conversion

In YAML → JSON mode, the tool parses the YAML input and converts the resulting data structure into formatted JSON with two-space indentation.

This can be useful when configuration data needs to be consumed by an application or API that expects JSON.

JSON to YAML Conversion

In JSON → YAML mode, the tool parses the JSON input and converts the resulting data structure into YAML with two-space indentation.

This can make structured JSON data easier to use in configuration files and other YAML-based workflows.

Common Uses for YAML and JSON Conversion

Convert configuration files between YAML and JSON.
Prepare structured data for APIs.
Work with Docker and CI/CD configuration.
Convert data between development tools.
Inspect and transform structured application data.
Move configuration between systems that use different formats.

Invalid YAML or JSON

If the input cannot be parsed correctly, the converter displays the parsing error instead of generating an output. Check YAML indentation, JSON quotes, brackets and other syntax when an error occurs.

Is my YAML or JSON uploaded to a server?

The conversion is performed directly in your browser using the YAML parser and serializer included with this tool. Your input does not need to be sent to a backend server for conversion.

Input Limit

The input and output fields support up to 100,000 characters. This limit helps keep the browser interface responsive when working with larger YAML or JSON documents.