variable-diff is a lightweight JavaScript library for generating detailed, human-readable diffs between JavaScript objects, arrays, and primitive values. It goes beyond simple equality checks, providing granular insights into the specific changes made, including additions, removals, and modifications of properties or array elements. This makes it ideal for debugging, testing, and generating informative change logs or audit trails within JavaScript applications. It avoids circular reference issues and can be an invaluable tool when comparing complex or nested data structures.