API Payload Analyzer
Inspect JSON API payloads for structure, size breakdown, and key depth — spot sensitive fields before sharing logs before production incidents. Code never leaves your device — formatting and validation run locally in your browser.
How to Use the API Payload Analyzer
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Frequently Asked Questions
What does the payload analyzer inspect?
JSON payload structure, size breakdown, key depth, and type distribution.
Large payloads?
Analyzes in chunks — multi-megabyte bodies won't freeze the tab.
Does it flag sensitive data?
Keys named like token, secret, or password surface for review before you share logs.
Is my payload uploaded anywhere?
No — analysis runs locally in your browser, free with no signup.
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Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.
JSON Size Analyzer
Profile JSON payload weight — byte size, key counts, nesting depth, and heavy branches. Find the 2 MB field bloating responses — local analysis, free, no signup.
Last updated October 2026