HTML: Extract JavaScript

⭐ HTML: Extract JavaScript - Explanation & Examples

The Extract JavaScript tool scans your HTML and extracts JavaScript code that is physically present in the file. It captures internal <script>...</script> code (without src) and inline event handler attributes such as onclick and onchange.

🔎 What this tool extracts

• Internal JavaScript from all <script> blocks without a src attribute
• Inline JavaScript from all on* event attributes (e.g. onclick, onload, onmouseover)
• Only JavaScript code present directly inside your input HTML

🔎 How to use

1. Upload an HTML file or paste HTML into the input area.
2. Click Extract JavaScript.
3. Copy inline/internal output separately, or download all extracted JavaScript as a .js file.

💡 Example

Input HTML:

<button onclick="alert('Hi');">Click me</button>

<script>
function hello() {
  console.log("Hello world");
}
</script>

Extracted inline JavaScript:

alert('Hi');

Extracted internal JavaScript:

function hello() {
  console.log("Hello world");
}

If no inline or internal JavaScript is found, the tool shows: No inline or internal JavaScript found in the provided HTML.

This tool is also known as

• extract javascript from html
• get script code from html source
• inline javascript extractor
• find js in html tool
• extract script tags online