Tool description

The JSON Object Property Counter is an online JSON size calculator that analyzes JSON objects and counts their properties. This JSON element counter helps you quickly determine the JSON object length by counting all top-level properties (keys) in your data. It's useful for understanding the structure and complexity of JSON data without manually counting properties.

Features

  • Property Counting: Counts all direct properties in a JSON object to determine object length
  • Real-time Analysis: Updates the count automatically as you type or paste JSON
  • Error Detection: Validates JSON syntax and alerts if the input is invalid
  • Array Detection: Identifies when an array is provided instead of an object
  • Copy Result: Easily copy the property count to clipboard
  • Online Calculator: Works directly in your browser without installation

Use Cases

  • API Response Analysis: Quickly determine how many fields an API endpoint returns using this JSON element counter
  • Data Structure Validation: Verify that JSON objects have the expected number of properties and correct object length
  • Schema Design: Understand the complexity of JSON schemas during development
  • Data Migration: Count fields when mapping data between different formats
  • Code Review: Analyze JSON configurations to assess complexity with this online calculator
  • Testing: Validate that test fixtures have the correct structure and property count