Base64 encoding is often used to transmit text data over channels or protocols that only support ASCII characters. By encoding the text data in Base64, it ensures that special characters, control characters, or non-ASCII characters are properly represented and can be safely transmitted.

When attaching text-based files, such as code snippets or configuration files, to emails, Base64 encoding can be used to ensure that the text data remains intact during transmission. This encoding technique allows the text to be represented in a safe and portable format that can be embedded within email messages.

Base64 encoding can be utilized to store text-based data in databases or file systems that may have limitations on the types of characters allowed or may require a specific format. By encoding the text data as Base64, it can be stored as a sequence of ASCII characters without any restrictions.

In some cases, when passing text data as a parameter in a URL, Base64 encoding can be used to ensure that the data is URL-safe. It helps avoid issues with special characters or reserved characters that may have special meanings in URLs.

Some APIs require text data to be passed in a specific format. Base64 encoding can be used to convert the text data into a standardized format that can be easily included in API requests or responses.

Base64 encoding can be employed to create a checksum or hash of the text data, enabling data integrity verification. By comparing the encoded values before and after transmission or storage, any changes or errors in the text data can be identified.