Sub Cipher is an easy-to-use Encoder/Decoder app, which can encode or decode "simple substitution ciphers."
It works on the "Caesar" and "Atbash" style cipher methods, which are simple offset-alphabet ciphers. The well-known "Rot13" cipher is one of these.
Simply type or copy-paste your encoded or decoded text to and from e-mail, messages, social media, and it is immediately converted for you. Up to 2,000 characters can be converted at a time.
You can also capture the settings you have dialed in (as lines of text) to save in another document. This can be useful if you are publishing a newsletter or book of ciphers, and want to keep the settings you used with each cipher along with the cipher itself.
Caveat Emptor: These ancient styles of ciphers are very simple and easy to decode! This is simply a fun utility, and is not intended for serious "secret message" work.
Here are the main features:
1.0.0, September 2021
First release, it is ALL new!
Sub Cipher is free.
Originally, I quickly built Sub Cipher to help me create some simple cryptogram puzzles for a book I published. After that, I polished it up for everyone else to use too. So now it is time to ask, "What new things would you like to see next?"
After you enjoy the software, feel free to send me an e-mail and suggest a new feature you might like it to have. Although I cannot promise answering all e-mails or getting all the requests done, I would love to hear what you want, and will add yours to my "to-do" list to work on.
Here are some ideas that are already bobbing on the surface of possibility:
- Add the keyword, Vigenère, or other cipher.
- Allow other alphabets, like "Pigpen/Templar/Masonic", Greek, Runic.
Also, if you get a moment, please rate/review the app in the app store. It lets me and others know how useful this is.
Q: I have an entire chapter/poem to encode or decode. Can Sub Cipher handle it?
A: Yes! It can convert 2000 characters total, at a time. If your text is longer than that, you can convert it a paragraph or two at a time.
Q: Where can I find out more about these kinds of ciphers?
A: I would start by clicking here.
Q: Somebody said you hid some of your music in here... where is it?
A: Simply click/tap on the application icon to hear it.