YAML Doğrulayıcı

YAML sözdizimini ve yapısını doğrula

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About This Tool

The YAML Validator a robust yaml validation engine that checks syntax, validates document structure, detects duplicate keys, and provides comprehensive document statistics. All processing happens client-side in your browser, ensuring your data remains private and secure. Perfect for developers who need quick, reliable processing without compromising on privacy or security.

How to Use This Tool

Paste Your YAML Data

Copy your YAML content and paste it into the input area. You can validate YAML from any source: API responses, config files, or code you're writing. Drag-and-drop YAML files or use the file upload button for convenience.

Review Validation Results

The validator checks your YAML syntax instantly. Green checkmarks mean valid YAML. If errors are found, they're highlighted with specific line and column numbers, plus clear error messages explaining what's wrong.

Fix Issues and Re-validate

Use the error details to locate and fix YAML problems. The real-time validation updates as you type, so you can verify fixes immediately. Once all errors are resolved, you have valid, production-ready YAML.

Technical Implementation

This tool is built using modern JavaScript and runs entirely in your web browser. All operations complete in milliseconds for typical inputs, with performance optimized for both speed and accuracy. The implementation is client-side only - your data never leaves your device. The tool works offline once loaded, requires no cookies, and includes no tracking. Supported browsers include Chrome 90+, Firefox 88+, Safari 14+, and Edge 90+. The tool is mobile-responsive and works on tablets and smartphones.

Best Practices & Tips

✓Validate early and often. Run validation after each significant change to YAML files. This helps catch syntax errors immediately when they're easiest to fix, especially with complex nested structures.
✓Use error messages to learn YAML syntax. Each error includes line and column numbers plus detailed descriptions. Understanding these messages improves your YAML skills and helps avoid similar mistakes.
✓Test with edge cases. Try validating empty values, very large files, deeply nested structures, and unusual characters. This ensures your production YAML handles all scenarios gracefully.
✓Integrate into your development workflow. Bookmark this tool or add it to your editor. Many developers validate YAML from external sources (APIs, user uploads, config files) before using it in production.

Troubleshooting Common Issues

Problem: Syntax error or unexpected token in YAML

Solution: Check the exact line and column number shown in the error message. Common issues include missing commas, unclosed brackets/braces, or unescaped special characters. YAML requires strict syntax.

Example: Line 15: "Unexpected token }" usually means a missing comma on line 14, or an extra closing brace.

Problem: File too large or validation seems slow

Solution: For YAML files over 5MB, validation may take several seconds. For extremely large files (>10MB), try breaking them into smaller sections or use a desktop validator.

Example: A 15MB YAML file might take 10-15 seconds to validate in the browser, which is normal for client-side processing.