Base64 decoder

A Base64 decoder is a tool that can convert Base64-encoded data back into its original binary format. As Base64 is a method of encoding binary data into ASCII text, decoding the Base64-encoded data allows the original binary data to be retrieved.

To decode Base64-encoded data, the decoder reads the Base64-encoded text and converts each 4-byte sequence of ASCII characters back into the original 3-byte binary sequence. This process involves reversing the mapping of the 64 printable ASCII characters back to their original 6-bit binary values, and then concatenating the resulting binary sequences to reconstruct the original data.

Base64 decoding is commonly used in applications where binary data needs to be transmitted over text-based channels, such as email systems and web browsers. It is also used in cryptographic applications to decode encrypted data that has been encoded in Base64 format.

Base64 decoding can be performed manually using specialized tools or online services, or it can be integrated into software applications using programming libraries or APIs.

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