DataFormattools
YAML · Diff Tool

YAML Diff & Comparison Tool

Compare two YAML files online. Highlight line-by-line differences, added keys, and deleted values side-by-side with clear visual indicators.

Structural Diff & Comparator
+0 additions-0 deletions
Original YAML0 lines
Modified YAML0 lines
Visual Diff Comparison0 changes

Enter original and modified text above to compute diff.

100% In-Browser Privacy: All conversions, formatting, and validations run purely on your machine using client-side JavaScript. Your data, code snippets, and environment variables are never transmitted to any server or recorded in logs.
Specifications

How YAML Diff Works

  • Normalizes indentation across both YAML inputs.
  • Performs line-by-line diff comparison.
  • Highlights additions in green and deletions in red.
Demonstration

Example Input & Output

Identifies modified environment variables and added configuration keys between two YAML manifests.

Original YAML (Left)
apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
data:
  ENV: staging
  PORT: "3000"
Modified YAML (Right)
  metadata:
    name: app-config
  data:
-   ENV: staging
+   ENV: production
-   PORT: "3000"
+   PORT: "8080"
+   LOG_LEVEL: info
Applications

Common Use Cases

Kubernetes Manifest Diffs

Compare deployment YAML manifests between staging and production clusters.

Helm Chart Value Verification

Compare default values.yaml against custom release overrides.

Guidelines

Key Specifications & Gotchas

Trailing Whitespace

Inconsistent trailing spaces can cause diff noise unless normalized.

Questions

Frequently Asked Questions

How do I compare two YAML files?

Paste the original YAML into the left pane and the modified YAML into the right pane; differences will be highlighted immediately.

Does it highlight changed values?

Yes, modified lines, additions, and deletions are visually color-coded.

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