JSON Health Score & Anomaly Analyzer
Calculate an instant 0–100 quality score across validity, nesting depth, type consistency, and privacy risks — with one-click safe fixes.
How It Works
Fast, secure, browser-native JSON processing in 3 simple steps
Paste or Upload JSON
Paste your raw data directly into the editor or upload any .json, .jsonc, or .json5 file.
Inspect & Validate
Instantly view syntax errors, health score, duplicate keys, and potential sensitive credentials.
Format, Diff or Export
One-click format, run structural comparisons, generate redacted copies, or download the clean output.
Understand the Quality and Integrity of Your Data
A JSON file can be syntactically valid yet structurally flawed. JSON Health scans for schema anomalies, sporadic fields across records, mixed types in arrays (like numbers mixed with strings), and unmasked credentials, scoring overall document health on a 0–100 scale.
Frequently Asked Questions
Everything you need to know about JSON validation, formatting, and privacy
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JSON Health Score →
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