Base64 to Text

Base64 is a binary-to-text encoding scheme based on 64 characters, which converts binary data into a subset of the ASCII character set, allowing safe transmission in plain text environments.

Base64 is commonly used in scenarios such as email attachments, embedding small images in web pages, and transmitting binary data in JSON.

Base64 groups data into 3-byte (24-bit) segments, then divides each segment into 4 6-bit chunks, each corresponding to a printable character.

Base64 encoding increases data size by approximately 33%. For large files, consider other transmission methods. Encoding is not encryption and does not provide security.

Standard Base64 uses A-Z, a-z, 0-9, +, / totaling 64 characters, with = as padding. URL-safe Base64 variants use - and _ instead of + and /.

Modern browsers natively support Base64 encoding and decoding, providing btoa() (encode) and atob() (decode) methods. However, these methods only support ASCII characters.