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Developer Tools Validator

YAML Validator & Converter

Validate YAML syntax, detect line error positions, and convert YAML to formatted JSON in real-time.

What Is a YAML Validator?

A YAML Validator is an indispensable utility for DevOps engineers and developers to verify YAML configuration files (Kubernetes manifests, Docker Compose, GitHub Actions) for syntax errors and indentation mismatches.

How to Use the YAML Validator

  1. Paste your YAML configuration file into the editor.
  2. Click Validate YAML to run the local `js-yaml` parser.
  3. If valid, inspect the parsed JSON output below. If invalid, review line and column error position alerts.
  4. Click Copy JSON or Download JSON to export your parsed configuration.

Key Features

  • Bundled js-yaml Engine: Uses official standalone `js-yaml.min.js` bundled locally for 100% offline capability.
  • Instant YAML to JSON Conversion: Seamlessly parses complex nested maps, lists, and scalar types.
  • Detailed Syntax Error Reports: Highlights exact line number and column where syntax errors occur.

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