YAML Validator

Validate YAML syntax and convert YAML to JSON. Get detailed error messages with line numbers. All processing happens in your browser.

YAML Input

0 chars

Result

0 chars

How to Use the YAML Validator

Paste your YAML in the input field. Choose Validate mode to check syntax, or YAML → JSON mode to convert. Results update in real time as you type.

Features

  • Syntax Validation — Instant feedback with line numbers for errors
  • YAML to JSON — Convert YAML to formatted JSON
  • Multi-document Support — Handles YAML files with multiple documents
  • Statistics — Shows key count, nesting depth, and document count

FAQ

What can this tool do?

Validate YAML syntax with detailed error messages, and convert YAML to JSON format.

Does it support multi-document YAML?

Yes. The validator can parse multi-document YAML files separated by ---.

Is my data safe?

Yes. All validation happens in your browser. No data is sent to any server.

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