JavaScript to Base64 Converter

Looking for an easy way to encode your JavaScript? Our free JavaScript to Base64 converter is the perfect tool for the job. It instantly takes any JS code snippet and transforms it into a clean, portable Base64 string. Just paste your code, click the button, and you’re ready to go!

How to Use JavaScript to Base64 Converter

Getting your Base64 code couldn’t be easier. Just follow these simple steps:

1. Paste Your Code: Copy your JavaScript code and paste it into the first text box, labeled “Paste your JavaScript here:”.
2. Click Convert: Hit the blue “Convert to Base64” button.
3. Get Your Output: Instantly, the “Base64 Output” box below will fill with your newly encoded string.
4. Copy or Download: You can either click “Copy to Clipboard” to grab the string or “Download as .txt” to save it as a file for later use.

Example

Here’s a practical look at what the tool does.

Original JavaScript Input:

JavaScript

console.log('Hello world');

Base64 Output:

Y29uc29sZS5sb2coJ0hlbGxvIHdvcmxkJyk7

Use Cases for Encoding JavaScript

You might be wondering why you’d need to do this. Here are a few common scenarios:

• Creating data: URIs: You can embed a script directly into an HTML file without needing a separate .js file. This is common for small scripts or bookmarklets.
• Safe Data Transport: When you need to include a script inside a JSON or XML file, special characters like quotes ("), brackets ({}), and semicolons (;) can break the file. Base64 encoding makes the script a “safe” string that can be easily parsed.
• Bookmarklets: Many browser bookmarklets (bookmarks that run code) use Base64-encoded JavaScript in the URL.
• Storing in Databases: It’s sometimes easier to store a script as a single Base64 text string in a database field rather than dealing with escaping special characters.