|Base 64 encoding and decoding|
The calculators encode string to base64 string and decode back to original string. Special characters (+/) , generally produced by base64 algorithm, can be replaced by the data provided in additional parameter.
|Tips and tricks #6: How to make calculator with virtual keyboard|
This article describes how to create calculator with virtual keyboard using SVG image
|Standard Galactic Alphabet decoder|
This online calculator can decode message written with standard galactic alphabet symbols
|Rail fence cipher|
This article contains two calculators, first can be used to encode message with the rail fence cipher, second can be used to crack message encoded with the rail fence cipher by brute force. Decoded simply outputs decoded message for different number of "rails".