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Историческую версию Text Encoder Tools - Base64, ROT13, & Reverse Text можно получить на Android
Кодирования и декодирования строки с использованием URL-кодирование, HTML Entities, Base64 и rot13.
In computer programming, a string is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and the length changed, or it may be fixed (after creation).
A string is generally considered a data type and is often implemented as an array data structure of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding.
Text Encoder Tools or String Encoding Tools allow encode and decode strings using URL Encoding, HTML Entities, Base64, and ROT13.