This is a free, real-time JSON formatter and validator that runs 100% in your browser. No data is sent to any server. It supports formatting (beautifying), minifying, sorting keys alphabetically, and real-time validation with line-accurate error messages.
JSON.parse() converts your text into an in-memory JavaScript object, then JSON.stringify() renders it back with proper indentation. This also validates the JSON as a side effect " any syntax errors are caught and displayed with the exact character position.
All processing is done entirely in your browser's memory using JavaScript. No data is sent to any server. When you close this tab, the data is gone. This makes it safe to use with API keys, tokens, or private configuration files.
It recursively sorts all object keys alphabetically throughout the entire JSON structure. Useful for comparing two JSON objects for differences or enforcing consistent key ordering in config files.
Minifying removes all whitespace, newlines, and indentation from valid JSON. The result is functionally identical but smaller " useful for reducing payload size in HTTP API responses or configuration files.
Convert JSON arrays into clean HTML tables for documentation, reports, and data visualization.
This tool converts JSON arrays of objects into structured tabular format. Each object in the array becomes a row, and each unique key becomes a column header. This is the fastest way to make JSON data readable for non-technical stakeholders.
The conversion works by first collecting all unique keys across all objects in the array, then mapping each object's values to the corresponding columns. Missing keys show empty cells. Nested objects are JSON-stringified in their cells.
This is particularly useful for converting API responses, database query results, and data exports into formats that can be pasted into spreadsheets, wikis, or documentation tools.
When tabular view beats raw JSON:
An array of flat objects: [{"name":"Alice","age":30},{"name":"Bob","age":25}]. Each object becomes a row. Nested objects will be stringified in cells.
A single object would produce a table with one row. For key-value display of a single object, each key-value pair is better shown as its own row with Key and Value columns.
If an object in the array does not have a key that other objects have, the corresponding cell is left empty. The tool collects all unique keys across all objects to build the complete column set.