About

Decode this is an encryption game. Your goal is to decode a quote from a free API of inspirational quotes.

All of the letters in the quote have been switched with another random letter -- for example all of the "L"s in the example below have been changed for "E"s.

Example

HELLO WORLD
NDEEQ SQPEZ

How to Decode a Quote

It's a trial and error process -- use the 'from' and 'to' boxes to swap out a letter that you think may move you toward a solution.

If you make a mistake, click the incorrect letter to revert it to the original encoded letter.

Tips

The most common letters in the English Alphabet are e, t, a, i, o, n, s, h, and r.

Single-letter words are always "I" or "A".

After that, if you get stuck, remember that "the" is the most common three-letter word in English.

Other common three-letter words are: and, are, for, not, but, had, has, was, all, any, one, man, out, you, his, her, & can.

If the second to last character of a word is an apostrophe, then the word likely ends with a "T" or "S," but sometimes a "D."

Credits

Thanks to PY & NF for the idea and inspiration and design help.

Thanks to VY for all her help and code review.

Thanks to my friend CB for his encouragement and for teaching me the TIGR method.

Favicon Credit to Freepik - Flaticon