🔐 Encoding & Decoding Tools
Transform data between different encoding formats with our free online tools. All processing happens in your browser for maximum privacy and security.
Available Tools (8)
Base64 Encode
Encode text to Base64 format instantly
Base64 Decode
Decode Base64 strings to plain text
URL Encode
Encode URLs for safe transmission
URL Decode
Decode URL-encoded strings
HTML Encode
Encode HTML entities
HTML Decode
Decode HTML entities to readable text
Image to Base64
Encode images to Base64 strings
Base64 to Image
Decode Base64 strings to images
Why Use Encoding & Decoding Tools?
Encoding and decoding are fundamental operations in web development and software engineering. These tools allow you to convert data between different formats to ensure safe transmission, storage, and compatibility across different systems.
What is Encoding?
Encoding is the process of converting data from one format to another. Common encoding schemes include:
- Base64: Converts binary data to ASCII text, commonly used for embedding images in HTML/CSS or transmitting data in JSON
- URL Encoding: Converts special characters in URLs to percent-encoded format for safe transmission
- HTML Entity Encoding: Converts special characters to HTML entities to prevent XSS attacks and display issues
Common Use Cases
- API Development: Encode binary data for JSON APIs, decode API responses
- Web Security: Prevent XSS attacks with HTML entity encoding
- Data Transmission: Safely transmit data over HTTP with URL encoding
- Email: Base64 encoding for MIME email attachments
- Authentication: Base64 encode credentials for HTTP Basic Auth
Privacy & Security
All our encoding and decoding tools run 100% in your browser. Your data never leaves your device, making it safe to encode and decode even sensitive information. No server processing, no logging, no tracking.