YAML to JSON

What Is a YAML to JSON Converter?

A YAML to JSON converter turns YAML into JSON. This is useful when an API, library, or tool accepts only JSON, or when you want to work with configuration data in code.

ToolsViewer's online YAML to JSON tool parses your YAML in the browser and outputs pretty-printed JSON. If the YAML has a syntax error, the tool reports the failure.

How to Use the YAML to JSON Converter

Step 1: Add your YAML
Paste YAML, import a .yaml, .yml, or text file, fetch a public URL, or load the sample.

Step 2: Click Convert
The tool parses your YAML and builds the JSON.

Step 3: Review the output
Check the JSON output. If something is wrong with the YAML, you'll see an error message.

Step 4: Copy or download
Copy the JSON or download it, or send it to another tool.

YAML to JSON Features

• YAML to JSON conversion
• Handles nested maps and lists
• Syntax and parse error reporting
• Pretty-printed JSON output
• Sample, Import, Fetch URL, and Convert options
• Download and Send to other tools
• Private processing in your browser

Common Uses

Send configuration to APIs: Convert YAML to the JSON an API expects.

Find YAML mistakes: Catch indentation and syntax problems when conversion fails.

Process config in code: Turn YAML into JSON for scripts and applications.

Compare formats: See how YAML structure maps to JSON.

Supported Formats

• YAML text
• .yaml and .yml files
• Text files containing YAML
• Public URLs
• Output as JSON

This tool is a simple converter with no extra output settings. To control how YAML is written, use JSON to YAML.

Explore related tools like JSON to YAML, JSON Validator, and JSON Minifier to convert, validate, and compress data online.