Bitwise Calculator: Encode and Decode AND, OR, XOR and NOT Online This bitwise calculator is used to perform bitwise AND, bitwise OR, bitwise XOR and bitwise NOT. These bitwise operators helps in manipulating a single bit of a byte. Bitwise operators can be used on both integral and unsigned types. Use the above bitwise calculator to manipulate bytes from one form to another. If this tool was helpful, tweet it or share it.