Base64 Toolbox

Base64 Encoding Guide

Learn about Base64 encoding and its applications in modern web development.

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored and transferred over media designed to deal with text.

Common Uses: Data URIs, email attachments, API authentication, image embedding

Security Considerations

Base64 is NOT encryption. It's an encoding method that can be easily decoded. Never use Base64 to hide sensitive information like passwords or API keys.

Remember: Base64 increases data size by approximately 33%

Base64 Examples

Original Text

Hello, World! This is a test message.

Base64 Encoded

SGVsbG8sIFdvcmxkISBUaGlzIGlzIGEgdGVzdCBtZXNzYWdlLg==

Note: The "==" at the end is padding to make the encoded string length a multiple of 4.