Analyze JSON payload size, gzip estimate, and depth
Measure byte weight, estimated gzip size, total key counts, and object nesting levels.
About This Tool
JSON Size & Depth Analyzer helps backend and frontend engineers analyze the payload weight, compression savings, and structural complexity of API responses.
Key Features
Raw bytes and human-readable KB/MB sizes
Minification savings percentage
Total key, object, and array counters
Maximum nesting depth measurement
How to Use
- 1Paste any JSON string or payload into the input box.
- 2View instant metrics on raw size, minified size, and estimated gzip transfer weight.
- 3Review nesting depth and total object/array counts to optimize API performance.
Why Use ToolSnippet JSON Size & Depth Analyzer?
Catch bloated API responses before shipping code to production.
Calculate realistic over-the-wire data transfer metrics for mobile users.
100% private analysis with zero data leaving your browser.
Tips for Best Results
- Keep API response depth under 6-8 levels to ensure high frontend parsing performance
- Minifying JSON before transmission saves noticeable bandwidth on high-throughput endpoints
Frequently Asked Questions
How is the gzip size estimated?
Gzip size is calculated based on standard DEFLATE compression ratios for JSON structures (~65% reduction).
What is nesting depth?
Nesting depth measures how many layers of nested objects and arrays exist inside the JSON payload.
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