Read
The tree view preserves exact numbers, nested objects and large arrays. The raw view keeps the original text available at all times.
Structured searchKey, value, JSON path and highlighting in the tree.
Keyboard navigationMove, open and copy without leaving the structure.
Understand
Structure, quality, type distribution, maximum depth and special values are calculated locally with explicit limits.
Compare
The semantic diff shows additions, deletions and value changes with their path. Schema drift compares multiple samples without hiding inconsistencies.
Transform
Repair invalid JSON, extract a path, reduce a data set, or convert it to YAML, TOON, XML and CSV. Every output is previewed before export.
Create a contract
Generate TypeScript types, a JSON Schema or a bounded mock set from the current document. The results remain editable and copyable.
{
"order": {
"id": "ord_1842",
"status": "paid",
"total": 42
}
}interface Order {
id: string;
status: 'paid' | 'pending';
total: number;
}