JSON Diff

Why Diff JSON?

Comparing two JSON objects by eye is tedious and error-prone — a single misplaced comma or renamed key can hide in thousands of lines. Our diff tool performs a deep, recursive structural comparison and highlights every addition, removal, and value change with its exact JSON path.

Features

  • Deep comparison — recursively compares objects, arrays, and primitives to any depth.
  • Colour-coded results — additions (green), removals (red), and changes (yellow).
  • Exact paths — every difference includes the full JSON path (e.g. $.users[0].name).
  • Old & new values — changed fields show both the original and modified value.
  • Side-by-side editor — paste or type both JSON documents in parallel.

Common Use Cases

  • Reviewing API response changes between versions during integration testing.
  • Comparing configuration files across environments (dev, staging, prod).
  • Auditing database document changes or migration output.
  • Verifying that a transformation or migration preserved data integrity.

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