JSON Statistics

The JSON Statistics tool measures your document and reports metrics that describe its structure and scale. See the total number of keys, the maximum nesting depth, counts by value type, array lengths, and the byte size. It turns an opaque payload into a clear profile you can use to reason about complexity and performance.

• Total counts of objects, arrays, keys, and primitive values
• Maximum and average nesting depth of the document
• Type distribution across strings, numbers, booleans, nulls, and containers
• Byte size and character count of the input
• Longest arrays and largest objects by member count
• Unique versus repeated key analysis

1. 1

   Paste your JSON

   Add the document you want to analyze into the input.

2. 2

   Run the analysis

   The tool computes size, depth, counts, and type distribution instantly.

3. 3

   Review the metrics

   Read the breakdown to understand the document's scale and complexity.

4. 4

   Act on the insights

   Use the findings to spot bloat, deep nesting, or unexpected structure.

• Estimating how heavy an API payload is before optimizing it
• Finding excessive nesting depth that could complicate parsing
• Auditing how many keys and values a config actually contains
• Understanding the type makeup of an unfamiliar dataset
• Spotting unusually large arrays that dominate a document's size