Semantic vs Text diff?

Text diff compares raw lines — useful for whitespace/comment changes. Semantic diff parses YAML to JSON first, ignoring formatting (indentation, field order), and compares actual data. Recommended.

What YAML features are supported?

Nested structures, arrays, anchors/aliases, multi-line strings, tags — standard YAML 1.2. Uses js-yaml parser.

How large can the YAML be?

Recommended max 1MB per document. Large files may slow the browser. Perfect for K8s configs, Docker Compose, etc.

How does YAML Diff Tool - Online YAML Comparison work?

YAML Diff Tool - Online YAML Comparison processes everything locally in your browser. No data is sent to any server.

Free Online YAML Diff Tool - YAML Comparison

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📥 Enter YAML

Original YAML (A)

New YAML (B)

📋 Comparison Result

Enter YAML then click Compare

❓ Frequently Asked Questions

Does YAML Diff Tool upload my data to a server?

No. YAML Diff Tool uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.

Is my data safe when using YAML Diff Tool?

Absolutely. Everything runs locally: Original YAML and New YAML are processed on your device, never sent to a server. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.

Are there any usage limits for YAML Diff Tool?

YAML Diff Tool has no usage limits — it's free and unlimited. Since processing is done client-side, speed depends on your device. For very large files, we recommend processing in batches for the best experience.

Is YAML Diff Tool free to use?

Yes, YAML Diff Tool is completely free to use. No registration or login required — all features are available immediately.

📄 YAML Diff Tool