JSON Size Calculator
Calculate JSON file size, analyze structure complexity, and get detailed statistics about your JSON data. Perfect for optimizing API payloads and data structures.
About JSON Size Calculator
What it measures:
- File Size: Actual bytes, KB, and MB of your JSON
- Characters: Total character count including whitespace
- Lines: Number of lines in the formatted JSON
- Properties: Total number of object properties
- Array Items: Total items across all arrays
- Nesting Depth: Maximum levels of nested objects/arrays
Use cases:
- Check if JSON fits within API payload limits
- Optimize JSON structure for better performance
- Analyze data complexity before processing
- Monitor file sizes for storage planning
- Validate JSON before transmission
- Compare different JSON structures
Size Guidelines
Small (< 100 KB)
Ideal for API responses, configuration files
Medium (100 KB - 1 MB)
Consider compression, pagination for APIs
Large (> 1 MB)
May cause performance issues, consider optimization
Frequently Asked Questions
Use our JSON size calculator by pasting your JSON data or uploading a file. The tool instantly calculates the size in bytes, KB, and MB, plus provides detailed structure analysis including properties count and nesting depth.