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JSON Tools

JSON Size & Memory Analyzer

Analyze JSON byte size, nesting depth, object distribution, and minification savings.

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How to Use JSON Size & Memory Analyzer

  1. Paste your JSON payload into the input editor.
  2. View instant metrics in the dashboard cards.
  3. Inspect the depth and size breakdown to identify payload bloat.

Frequently Asked Questions

How does this tool calculate JSON byte size?

It calculates the exact UTF-8 byte count of both formatted and minified JSON payloads using the browser TextEncoder API.

What metrics are extracted?

Raw byte size, minified byte size, percentage reduction, total keys, nested object count, array count, max hierarchy depth, and null field counts.

Sources & References

Primary references: RFC 8259: The JavaScript Object Notation (JSON) Data Interchange Format.

Review policy: references and behavior notes are checked whenever the tool implementation changes.