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YAML Diff

Compare two YAML documents semantically — by parsed structure, not raw text.

Left YAML

Right YAML

Changes

+ 2 added- 0 removed~ 3 changed= 3 unchangedHide unchanged

~ CHGversion1.0.0 → 1.1.0

+ ADDfeatures.2yaml-diff

~ CHGconfig.port3000 → 8080

~ CHGconfig.sslfalse → true

+ ADDconfig.retries3

What is YAML Diff?

YAML Diff compares two YAML documents semantically — by parsed structure, not raw text. Irrelevant whitespace and key ordering differences are ignored, leaving only meaningful changes: added keys, removed keys, and value changes. Perfect for PR review and Kubernetes manifest drift detection.

How to Use

Paste the left (older) YAML on the left pane.
Paste the right (newer) YAML on the right pane.
Review changes grouped by path with + / - / ~ labels.
Toggle “Hide unchanged” to focus on real deltas.

Common Use Cases

Compare two Kubernetes manifests before applying
Check drift between staging and production compose files
Review Helm values file changes during chart upgrades
Audit CI workflow diffs across branches

Frequently Asked Questions

Q: Does it honor key ordering?

A: No — the diff is structural. Reordering keys produces no changes because YAML maps are semantically unordered.

Q: How are arrays compared?

A: Currently by serialized JSON equality. Element-level diff for arrays is on the roadmap.

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