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Convert JSON to YAML Online

Convert JSON to YAML format instantly. Free online JSON to YAML converter with syntax highlighting. No sign-up required.

🔒 100% Client-side⚡ Instant🆓 Free forever

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0 tokens
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About Convert JSON to YAML Online
Convert JSON to YAML format instantly. Free online JSON to YAML converter with syntax highlighting. No sign-up required. This tool is part of the ConvertTOON developer tools suite, providing 40+ free online utilities for developers.
All processing happens entirely in your browser — your data never leaves your device. No sign-up required, no data collection, completely free and private.
💡 Looking for more tools? Visit ConvertTOON.com for JSON to TOON conversion, batch processing, and 40+ developer tools.
How to Convert JSON to YAML
  1. Paste your JSON data in the input panel
  2. The YAML output is generated automatically
  3. Click “Copy” to copy the result to clipboard
  4. Or click “Convert” to manually trigger conversion
YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files. Unlike JSON, YAML supports comments and uses indentation rather than braces, making it ideal for Docker Compose, Kubernetes manifests, CI/CD pipelines, and application configs.
Frequently Asked Questions
Is my data secure?
Yes. All conversion happens 100% in your browser using JavaScript. No data is ever sent to a server.
Is there a file size limit?
The tool handles files up to several MB comfortably. For very large files, consider using our batch converter or API.
Can I use this programmatically?
Yes! We offer a free REST API at /api/convert/json-to-yaml and an NPM package for Node.js integration.
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