Details
This tool should only be used to decode Base64 encoded text data, including unicode. It is not suitable to work with binary data.
Base64 decoding reverses the encoding process, converting encoded ASCII characters back into the original data. The decoding converts each 4 ASCII characters back into 3 binary bytes.
Valid Base64 encoded data uses the characters A-Z, a-z, 0-9, plus (+) and slash (/). An equal sign at the end serves as padding for missing bytes. The length of valid Base64 data is always a multiple of 4.
Base64 encoded data is commonly found in HTTP protocol, mail protocols, in HTML (data URL), or even in encryption key encoding.
Base64 IS NOT an encryption algorithm, it is merely a data encoding algorithm providing absolutely no protection!
Looking to encode data to Base64 instead? Use the Base64 Encoder.