JSON to HTML Table
Convert a JSON array of objects to an HTML table. Each key becomes a column header.
About This Tool
The JSON to HTML Table Converter transforms a JSON array of objects into a fully structured HTML table with a header row and data rows. It collects all unique keys across every object in the array and uses them as column headers — objects missing a key produce an empty cell for that column.
The output is a plain HTML <table> with <thead> and <tbody>that you can paste directly into any HTML document. A live preview lets you see the rendered table before copying. All processing runs in your browser — no data is sent to any server.
How to Use
- Paste a JSON array of objects into the input area, or click Sample to load an example.
- Click Convert to generate the HTML table.
- Toggle Preview to see the rendered table, or view the raw HTML output.
- Click Copy HTML to copy the table markup to your clipboard.
Use Cases
Frontend developers quickly visualize API response data as an HTML table for prototyping or documentation. Data analysts convert exported JSON reports to HTML tables for embedding in emails or internal wikis. Backend developers generate HTML tables from database query results serialized as JSON. Technical writers include structured data tables in HTML documentation by converting JSON data exports.
FAQ
- What JSON structure is required? — The input must be a JSON array of objects:
[{"key": "value"}, …]. Arrays of primitives or single objects are not supported. - What happens if objects have different keys? — All unique keys across all objects are collected as columns. Objects missing a key produce an empty cell for that column.
- Is the HTML output safe? — Yes. All cell values are HTML-escaped to prevent XSS when pasting into a web page.