HTML Table to JSON Converter

Transform HTML <table> tags and scraped web tables into clean JSON objects, 2D arrays, or column arrays with automatic type inference and zero server uploads.

At a glance

HTML Table to JSON Converter is a free online tool that converts HTML <table> elements and web snippets into clean, structured JSON arrays and objects with smart type casting. It exports as an array of objects, 2D matrix array, key-value mapped dictionary, or columnar arrays. All processing is local: nothing is uploaded, and no account is required.

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100% Client-Side HTML Table to JSON Converter

Transform HTML <table> tags and scraped web tables into clean JSON objects, 2D arrays, or column arrays with automatic type inference and zero server uploads.

100% In-Browser Privacy Zero Server Latency
Load Presets:
HTML Table Source
0 lines
0 Tables • 0 Rows • 0 Columns
0 bytes

Why Use This HTML Table to JSON Converter?

100% Client-Side Privacy: Your HTML code and data stay entirely on your device with zero server uploads.
Smart Type Inference: Automatically converts numbers, booleans, and null placeholders to native JSON data types.
Flexible Output Structures: Export as an array of objects, 2D matrix array, key-value mapped dictionary, or columnar arrays.
Multi-Table Support: Detects and converts individual or multiple <table> elements within web page snippets.

How to Use HTML Table to JSON Converter

1

Paste HTML or Upload File

Paste raw HTML <table> markup or web snippets into the editor, or upload a .html file.

2

Configure Output Options

Select your desired JSON output format (Objects, 2D Array, Keyed Object), indentation, and type casting.

3

Copy or Download JSON

Click Copy JSON or Download .json to integrate directly into your apps, APIs, or database pipelines.

E-Commerce HTML Table to Structured JSON Array

Parses <th> header elements into JSON object keys, automatically infers numeric currency and boolean values, and outputs formatted 2-space indented JSON.

HTML Table Input Source
<table><thead><tr><th>Product</th><th>Price</th><th>InStock</th></tr></thead><tbody><tr><td>MacBook Pro</td><td>$1,999.00</td><td>true</td></tr><tr><td>Magic Mouse</td><td>$79.00</td><td>false</td></tr></tbody></table>
JSON Array Output Processed
[
  {
    "Product": "MacBook Pro",
    "Price": 1999,
    "InStock": true
  },
  {
    "Product": "Magic Mouse",
    "Price": 79,
    "InStock": false
  }
]

Technical Specifications & Engine Details

Technical specifications and engine details for HTML Table to JSON Converter
Specification Details
Supported Formats TEXT/HTML, TEXT/PLAIN, .HTML, .HTM → APPLICATION/JSON, TEXT/PLAIN, .JSON
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints Runs client-side in browser memory. Performance and file limits are bounded by available local device RAM.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your files and HTML snippets remain strictly on your local device. Zero data is transmitted to external servers.

Frequently Asked Questions

Can I convert Wikipedia tables or web page snippets?
Yes. Right-click on any web page table, select Inspect Element, copy the <table> outer HTML, and paste it directly into this tool to convert it to JSON.
How does smart type casting work?
When smart casting is active, numeric strings like "42" or "19.99" become numbers, "true"/"false" become boolean values, and "N/A", "null", or "-" are cast to JSON null.
Are my documents or HTML snippets uploaded to any server?
No. All conversion operations execute 100% locally in your web browser memory using client-side JavaScript. Zero data is transmitted to external servers.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .