For more details, see the documentation for btoa(). Base64 - Online Base64 decoder and encoder decoding and encoding texts and files. For encoded binaries (like images, documents, etc. Note that btoa() expects to be passed binary data, and will throw an exception if the given string contains any characters whose UTF-16 representation occupies more than one byte. In computer programming, Base64 is a group of binary-to-text encoding schemes that represent binary data in sequences of 24 bits that can be represented by. Simply enter your data then push the decode button. As such, MIME enforces a limit on line length of base 64-encoded data to 76. The algorithm used by atob() and btoa() is specified in RFC 4648, section 4. Base 64 Encoding with URL and Filename Safe Alphabet. atob(): decodes a Base64-encoded string ('atob' should be read as 'ASCII to binary').btoa(): creates a Base64-encoded ASCII string from a 'string' of binary data ('btoa' should be read as 'binary to ASCII'). Base64 is a group of similar binary-to-text encoding schemes that represent binary data in an ASCII string format by.In JavaScript there are two functions respectively for decoding and encoding Base64 strings: How does it work The process is: The Base64 encoding algorithm receives an input stream of 8-bit bytes.

One common application of Base64 encoding on the web is to encode binary data so it can be included in a data: URL. Base64 is commonly used in a number of applications including email via MIME, and storing complex data in XML. This is to ensure that the data remain intact without modification during transport. The term Base64 originates from a specific MIME content transfer encoding.īase64 encoding schemes are commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with ASCII. Base64 is a group of similar binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation.

Web base64 encoding