HTML to JSON Converter | Transform HTML to Structured JSON Online

Advanced Features

Real-time Conversion

Convert HTML to JSON instantly as you type or paste HTML code.

Customizable Parsing

Control what to include: attributes, text content, children, classes, and IDs.

DOM Tree Extraction

Extract the complete DOM tree structure with parent-child relationships.

HTML Validation

Validate HTML structure and highlight issues before conversion.

Export Options

Download JSON as a file or copy to clipboard with one click.

Depth Control

Limit how deep the parser goes into nested elements (1-10 levels).

Array Limiting

Set limits on array elements to prevent oversized JSON output.

Syntax Highlighting

Color-coded JSON output for better readability and debugging.

How to Use the HTML to JSON Converter

Introduction

Our HTML to JSON converter is a powerful tool that transforms HTML markup into structured JSON data. This conversion is essential for web scraping, data extraction, API development, and many other web development tasks. By converting HTML to JSON, you can easily manipulate and analyze web page content programmatically.

Step-by-Step Guide

Input HTML Code: Paste your HTML code into the input area. You can also use the "Sample HTML" button to load example HTML for testing.
Configure Conversion Options: Use the checkboxes to select what elements to include in the JSON output:
- Include element attributes: Converts HTML attributes like "class", "id", "href" to JSON properties
- Include text content: Extracts text nodes from HTML elements
- Include child elements: Processes nested elements recursively
- Include class names: Specifically extracts CSS class names
- Include element IDs: Extracts element IDs as separate properties
Adjust Advanced Settings:
- Max Depth: Control how many levels deep the parser should go (useful for complex pages)
- Array Elements Limit: Limit the number of array elements to prevent oversized JSON
Convert: Click the "Convert to JSON" button to transform your HTML. The conversion happens in real-time.
Export Results: Use the "Copy JSON" button to copy to clipboard or "Download JSON" to save as a file.

Use Cases

Web Scraping: Extract structured data from websites for analysis or integration
API Development: Convert HTML responses to JSON format for APIs
Content Migration: Transfer website content to different systems or formats
Testing & Debugging: Analyze DOM structure for testing web applications
Data Analysis: Process web page content for data mining projects

Tips for Best Results

Ensure your HTML is well-formed for accurate conversion
Use the HTML validation feature to check for issues before conversion
For large HTML documents, adjust the "Max Depth" and "Array Elements Limit" to optimize performance
Use the "Minify JSON" option to reduce file size for production use
Experiment with different conversion options to get the exact JSON structure you need

Pro Tip: This tool works completely in your browser. No data is sent to servers, ensuring your HTML content remains private and secure.