What does the JSON to HTML, TSV, and Markdown Table Converter do?
Use this tool when you need a browser utility that turns arrays of records into portable table markup and tabular text. It accepts a JSON array of objects, an array of scalar values, or one object and returns an accessible HTML table, TSV, or a Markdown table. Results are deterministic for the same input except where cryptographic randomness, current time, or a live provider response is part of the task.
Pick output for the destination
Use HTML for web markup, TSV for spreadsheets and clipboard transfer, and Markdown for documentation repositories.
How do you use it?
- Paste an array of JSON records or one representative object.
- Select HTML table, TSV, or Markdown table.
- Convert, inspect the column union, and copy or download the result.
Worked example
Create an HTML table from records
Input
[{"name":"Ada","role":"Engineer"},{"name":"Lin","role":"Designer"}]Output
<table>
<thead><tr><th>name</th><th>role</th></tr></thead>
<tbody>…</tbody>
</table>Columns are the ordered union of keys, and HTML-sensitive cell content is escaped.
Common errors and fixes
| Symptom | Likely cause | Fix |
|---|---|---|
| A cell contains JSON punctuation. | The source cell is an object or array rather than a scalar. | Flatten nested data before conversion if separate columns are required. |
| Columns appear that are blank in some rows. | Different records have different keys. | Normalize the records or keep the union columns to preserve every field. |
Important behavior of JSON Table
Nested objects and arrays are serialized as JSON text inside cells rather than expanded into additional columns.
Standards and implementation references
- WHATWG table model (opens in a new tab)Defines semantic HTML table elements.
- CommonMark tables extension guidance (opens in a new tab)Documents the common pipe-table syntax used by Markdown platforms.
Frequently asked questions about JSON Table
Does the JSON Table upload my input?
No. Processing runs in the current browser tab, and the page does not send tool input to a KitLumi processing endpoint.
What input does the JSON Table accept?
It accepts a JSON array of objects, an array of scalar values, or one object. The workspace checks the input and reports malformed or unsupported values before it produces a result.
What does the JSON Table produce?
It produces an accessible HTML table, TSV, or a Markdown table. Copy and download controls appear when the output format supports them.
What limitation should I know?
Nested objects and arrays are serialized as JSON text inside cells rather than expanded into additional columns.
What changed?
Added HTML table output, TSV output, Markdown table output, HTML cell escaping, responsive controls, explicit runtime disclosure, and task-specific examples and limitations.