Developer Encoding Toolkit

Professional encoding and decoding tools for developers. Convert text using Base64, URL encoding, and HTML entities with instant results. Includes code examples for JavaScript, PHP, and Python with auto-copy functionality for seamless integration into your projects.

Code Examples 

// Encode
const encoded = btoa('Hello World');
console.log(encoded); // SGVsbG8gV29ybGQ=

// Decode
const decoded = atob('SGVsbG8gV29ybGQ=');
console.log(decoded); // Hello World
<?php
// Encode
$encoded = base64_encode('Hello World');
echo $encoded; // SGVsbG8gV29ybGQ=

// Decode
$decoded = base64_decode('SGVsbG8gV29ybGQ=');
echo $decoded; // Hello World
?>
import base64

# Encode
text = 'Hello World'
encoded = base64.b64encode(text.encode()).decode()
print(encoded)  # SGVsbG8gV29ybGQ=

# Decode
decoded = base64.b64decode('SGVsbG8gV29ybGQ=').decode()
print(decoded)  # Hello World

Code Examples 

// Encode
const encoded = encodeURIComponent('Hello World & More!');
console.log(encoded); // Hello%20World%20%26%20More%21

// Decode
const decoded = decodeURIComponent('Hello%20World%20%26%20More%21');
console.log(decoded); // Hello World & More!
<?php
// Encode
$encoded = urlencode('Hello World & More!');
echo $encoded; // Hello+World+%26+More%21

// Decode
$decoded = urldecode('Hello+World+%26+More%21');
echo $decoded; // Hello World & More!
?>
import urllib.parse

# Encode
text = 'Hello World & More!'
encoded = urllib.parse.quote(text)
print(encoded)  # Hello%20World%20%26%20More%21

# Decode
decoded = urllib.parse.unquote('Hello%20World%20%26%20More%21')
print(decoded)  # Hello World & More!

Code Examples 

// Encode
function htmlEncode(str) {
    return str.replace(/[&<>"']/g, function(match) {
        return {
            '&': '&',
            '<': '<',
            '>': '>',
            '"': '"',
            "'": '''
        }[match];
    });
}

const encoded = htmlEncode('
Hello & Goodbye
');
console.log(encoded); // <div class="test">Hello & Goodbye</div>
<?php
// Encode
$text = '
Hello & Goodbye
';
$encoded = htmlentities($text, ENT_QUOTES, 'UTF-8');
echo $encoded; // <div class="test">Hello & Goodbye</div>

// Decode
$decoded = html_entity_decode($encoded, ENT_QUOTES, 'UTF-8');
echo $decoded; // 
Hello & Goodbye

?>
import html

# Encode
text = '
Hello & Goodbye
'
encoded = html.escape(text)
print(encoded)  # <div class="test">Hello & Goodbye</div>

# Decode
decoded = html.unescape(encoded)
print(decoded)  # 
Hello & Goodbye

🧾 What is Developer Encoding Toolkit?

The Developer Encoding Toolkit is a powerful and free online utility designed for developers to easily encode or decode data. It supports multiple encoding methods such as Base64, URL Encoding, and HTML Entities — making it a must-have tool for web development, debugging, and secure data handling.

✨ Why Use the Developer Encoding Toolkit?

Encoding is essential for ensuring data integrity, security, and proper rendering in web applications. Whether you need to encode sensitive information, make URLs safe, or display HTML content correctly, this toolkit simplifies the process and saves valuable development time.

🧭 How to Use the Developer Encoding Toolkit

  • Go to the Developer Encoding Toolkit.
  • Select the encoding type: Base64, URL Encoding, or HTML Entities.
  • Enter or paste the text, URL, or HTML content in the input field.
  • Choose Encode or Decode to process the text instantly.
  • Use the copy button to quickly copy the result.
  • Refer to the provided code examples for JavaScript, PHP, or Python implementation.

🚀 Benefits of Using Developer Encoding Toolkit

  • Supports multiple encoding formats (Base64, URL, HTML Entities)
  • Instant encoding and decoding
  • Copy results with one click
  • Completely free and browser-based
  • Perfect for developers, testers, and security professionals
  • No login, no data collection — secure and private

Is the Developer Encoding Toolkit free?

Yes! This tool is 100% free to use. No account, no subscription — just open and use it instantly.

How fast is the encoding process?

Encoding or decoding happens instantly in your browser. There’s no server processing, ensuring both speed and privacy.

💡 Frequently Asked Questions

What is Base64 encoding used for?

Base64 encoding converts binary data into ASCII text format. It’s commonly used in emails, APIs, and embedding images or files in HTML/CSS.

When should I use URL encoding?

URL encoding is necessary when transmitting data that includes special characters or spaces through URLs, ensuring valid and secure requests.

What are HTML entities and why encode them?

HTML entities represent special characters in HTML (like <, >, &). Encoding them prevents XSS vulnerabilities and ensures correct rendering in browsers.

Is my data secure?

Yes. All encoding and decoding happen locally in your browser. No information is stored or sent to any server.

Can I use the code examples in my projects?

Absolutely. The toolkit provides ready-to-use JavaScript, PHP, and Python snippets that can be freely integrated into your applications.

Does this tool work offline?

Yes! Once the page is loaded, you can use the encoding and decoding features even without an internet connection.