alltools.one

JSON to YAML Converter

Convert JSON data to YAML format with customizable indentation and formatting options.

🔒 Processed locally — your data never leaves your device
YAML → JSON

JSON Input

YAML Output

Enter JSON to see converted YAML output...
Why Use Our JSON to YAML Converter
Accurate
Accurate Conversion
Convert JSON to clean, readable YAML with proper type preservation and nested structure support.
Custom
Customizable Output
Control indentation size, flow style, and quoting preferences for your YAML output.
Validated
JSON Validation
Automatically validates your JSON input before conversion, showing clear error messages for invalid data.
Private
100% Client-Side
Your data never leaves your browser. Safe for configuration files containing sensitive information.
Linked
Bidirectional
Need YAML to JSON instead? Switch to our YAML to JSON converter with one click.
Simple
Import & Export
Upload .json files and download .yaml output. Copy to clipboard with one click.
YAML to JSON
Convert YAML data to JSON format.
YAML to JSON
Convert YAML data to JSON format.
Try Tool → 
JSON Formatter
Format and beautify JSON with syntax highlighting.
Try Tool → 
YAML Formatter
Format and validate YAML files.
Try Tool → 
JSON Validator
Validate JSON data and find errors.
Try Tool → 
Frequently Asked Questions
Common questions about JSON to YAML conversion.
Why convert JSON to YAML?
YAML is more human-readable than JSON for configuration files, especially those with deeply nested structures. Many tools like Docker Compose, Kubernetes, Ansible, and GitHub Actions use YAML for their configuration files.
Does the conversion preserve data types?
Yes. Numbers, booleans, strings, arrays, and nested objects are all properly converted. YAML natively supports the same data types as JSON, so no information is lost during conversion.
Is my data sent to a server?
No. All conversion happens entirely in your browser using JavaScript. Your JSON data never leaves your device.
Can I convert large JSON files?
Yes. The converter handles files up to 100MB. For very large files, processing happens in milliseconds since it runs directly in your browser without network delays.
What YAML formatting options are available?
You can customize indentation size (2, 4, or 8 spaces) and toggle flow style for compact inline formatting of arrays and objects.
Stay Updated
Get notified about new tools and features.
We respect your privacy. Unsubscribe at any time.
JSON to YAML Converter — Convert JSON Online | alltools.one