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🔧FormatKit

YAML to JSON Converter

Convert YAML to JSON instantly in your browser

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Click to browse or drag and drop your file here
Supported formats: .yaml,.yml,.txt
Maximum file size: 10MB
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About this Tool

YAML to JSON Converter is a free, privacy-first tool built for developers. Convert YAML to JSON instantly in your browser

✓100% Client-Side: All processing happens in your browser. No data is ever sent to our servers.

✓Fast & Efficient: Instant results with no server roundtrips or delays.

✓Free Forever: No sign-up, no limits, no hidden fees. Use as much as you need.

✓File Support: Upload files directly or paste content. Your choice.

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Disclaimer

This tool is provided for informational and educational purposes only. All processing happens entirely in your browser - no data is sent to our servers. While we strive for accuracy, please verify critical data before use in production environments. FormatKit is not responsible for any data loss, corruption, or issues resulting from tool usage.

How to Use YAML to JSON Converter

Upload a YAML file or paste your YAML content into the input field and it will be automatically converted to JSON format. All processing happens in your browser - no data is sent to our servers.

Features

  • Instant conversion as you type
  • Syntax validation with clear error messages
  • Copy JSON output with one click
  • Download as .json file
  • Supports all YAML features including nested objects, arrays, and multi-line strings
  • Privacy-first - all processing happens in your browser

Common Use Cases

  • Configuration files: Convert YAML configs to JSON format for applications that require JSON
  • API integration: Transform YAML data for JSON-based REST APIs
  • Data migration: Convert between formats when moving data between systems
  • DevOps workflows: Convert Kubernetes YAML configs to JSON for programmatic processing
  • Documentation: Generate JSON examples from YAML documentation

FAQ

Q: Is my data secure?

Yes! All conversion happens entirely in your browser. Your data never leaves your device.

Q: What YAML features are supported?

The tool supports standard YAML 1.2 syntax including anchors, aliases, multi-line strings, nested objects, arrays, and all standard YAML data types.

Q: Can I convert multiple YAML files at once?

Batch processing is planned for a future update. Currently, you can convert one YAML document at a time.

Q: What if my YAML has comments?

YAML comments (lines starting with #) are supported in the input and will be ignored during conversion, as JSON doesn't support comments.