What is HTML to JSON?
HTML to JSON converts HTML structure into JSON format. It parses the DOM, capturing elements, attributes, and hierarchy as a JSON object. Each tag becomes an object with a tag name, attributes, and optional children array—creating a tree structure that mirrors the HTML.
Useful for APIs, data extraction, server-side processing, or feeding HTML into other systems. The output can be consumed by JavaScript, Python, or any language that handles JSON. Store it in databases, pass it to templating engines, or use it for automated content analysis.
The converter preserves element names, attributes (including data-* and custom attributes), and nesting. Tables convert to structured rows and cells; nested lists become nested arrays. Ideal for scraping, CMS migration, or building HTML-processing pipelines.
How to Use HTML to JSON
- Paste HTML: Paste your HTML into the input editor. Full documents, fragments, or table-only markup all work. The tool accepts standard HTML5.
- Convert automatically: The tool parses the HTML and converts it to JSON instantly. The output mirrors the DOM structure: each element has tagName, attributes, and children.
- Review the JSON: Inspect the JSON output to verify structure. You'll see tag names, attribute key-value pairs, and nested children. Text content is preserved in text nodes.
- Copy or download: Copy the JSON to clipboard or download it as a .json file for use in your application, API, or data pipeline.
No signup required. Works on desktop and mobile.
Frequently Asked Questions
What does HTML to JSON output?
A JSON representation of the HTML DOM. Each element is an object with properties like tagName, attributes (as an object), and children (an array of child elements or text). The structure mirrors the original HTML hierarchy.
Can I convert tables to JSON?
Yes. Table rows (<tr>) and cells (<td>, <th>) are converted to structured JSON. Headers and data cells are captured with their content, making it easy to extract tabular data for analysis or export.
Is the conversion lossless?
Structure, attributes, and text content are preserved. Some presentation details (exact whitespace, certain CSS) do not transfer. The JSON represents the logical structure, not the visual layout.
Can I use the JSON in my backend?
Yes. The output is standard JSON, compatible with Node.js, Python, PHP, and other backends. Parse it with JSON.parse() or your language's JSON library to work with the structure programmatically.