Base64 is an worldwide standard encoding to represent binary data in an ASCII string. Each Base64 character represents exactly 6 bits of data. Therefore, four Base64 characters represent three bytes of data. A set of 64 characters are used and they vary slightly between different Base64 formats/implementations.
Need to translate in the other direction? Use the Base64 Decoder instead.
Encode Base64 format
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- The Base64 encoding can represent any binary data, although in many cases is represents text.
- A total of 64 characters are used + a padding character. Commonly, = is used as padding character.
- Usually, Base64 disregards of any whitespace characters in the Base64 code.
- Wikipedia has a summary of variants of Base64.
Base64 encoding is frequently used in geocaching mystery caches, CTFs and logic puzzles. It can often be recognized by the padding characters (one or two =) at the end.
Sample text
RU5DT0RJTkc=
The text above represents the word "ENCODING" encoded using base64 RFC 4648 (standard) format.
See also: Code-Breaking tools | A1z26 | Ascii table | Barcode | Base64 decoder | Baudot code | Book cipher | Geek code | Letters to numbers | Numbers to letters | Pixel values extractor | Qr codes | Unicode | Utf-8 decoder | Utf-8 encoder