The "Text to Binary" tool is a type of online converter that takes in text as input and converts it into binary code. Binary code is a system of representing data using only two digits, 0 and 1, which are referred to as "bits."

The tool works by first breaking down the text input into its individual characters and then converting each character into its corresponding binary code using a standard encoding system such as ASCII (American Standard Code for Information Interchange). Each binary code is then concatenated together to form the complete binary representation of the input text.

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The resulting binary output can be useful in a variety of applications such as data transmission, encryption, and data storage. It is important to note that the binary output may appear as a string of seemingly random 0's and 1's to the untrained eye, but it can be decoded back into the original text using a reverse binary to text converter tool.