YAML to JSON Converter

YAML to JSON Converter

Local Processing

Parse YAML documents and convert them into structured JSON format.

How It Works & Processing Standards

Parse YAML documents and convert them into structured JSON format.

Tool processing runs in your browser. If you create a calculator or conversion share link, its values are included in the URL. See the privacy policy for account, analytics and advertising data.

Current Limits

  • Desktop max file size: 50MB
  • Mobile max file size: 20MB

Turns YAML such as Kubernetes or CI config into JSON for code and APIs. port: 8080 becomes a number and debug: true a boolean.

What You Can Do

Type detection
Numbers, true/false and null become JSON types.
Syntax check
Badly indented YAML is reported as an error.

How to Use YAML to JSON Converter

  1. 1
    Paste YAMLPaste the YAML to convert.
  2. 2
    CopyCopy the JSON.

Examples

Server config
Input: server: port: 8080 debug: true
Result: { "server": { "port": 8080, "debug": true } }

Common Use Cases

  • Reading YAML config as JSON in code
  • Checking a YAML document is valid

Frequently Asked Questions (FAQ)

Do yes/no/on/off become booleans?

Following YAML 1.2, only true and false are booleans; yes, no, on and off stay strings.

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