Encode text to Base64 or decode Base64 back to text.
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII characters. It's commonly used to embed images in HTML/CSS, encode email attachments, transmit data in URLs, and store binary data in JSON or XML.
Use Base64 when you need to include binary data (like images or files) in a text-only format, pass data through systems that only handle text, or embed small resources directly in HTML/CSS to reduce HTTP requests.