Paste your JSON array and click Convert to see an HTML table with calculated statistics for numeric columns.
What is JSON to HTML Table Calculator?
This tool converts a JSON array of objects into a visual HTML table and automatically calculates key statistics for every numeric column: count, sum, average, minimum, and maximum. It is designed for developers, data analysts, and anyone who works with structured data.
How it works in theory: The tool parses your JSON input, validates its structure, and extracts all object keys as table headers. Each object becomes a row. For numeric fields, it computes descriptive statistics using basic arithmetic: sum (total of all values), average (sum divided by count), min (lowest value), and max (highest value). The result is presented as a clean HTML table with a statistics summary below.
This is not just a converter – it's a lightweight data analysis tool that gives you instant insights into your JSON data without writing code.
How to use:
- Paste a valid JSON array of objects into the text area. Example:
[{"name":"Alice","age":30,"score":85},{"name":"Bob","age":25,"score":92}] - Click the “Convert to Table” button or press Ctrl+Enter.
- View your data as an HTML table with row numbers.
- Scroll down to see the statistics section with numeric column analysis.
- Use the “Clear” button to reset the input.
Tips: Ensure your JSON is valid (use double quotes). Non-numeric values are ignored in statistics. The tool supports nested objects but flattens only first-level keys.