Here are 5 free Caesar cipher decoder websites to decrypt caesar cipher online. On these websites, you can input a Caesar ciphertext and specify the shift if you know that. If you don’t know the shift, then these websites let you use the brute force method to decrypt the text. Almost all these websites can decrypt a Caesar cipher in few seconds. And apart from decrypting Caesar cipher, you can even use this website to encrypt text using Caesar cipher method. Apart from Caesar cipher, you can use some of these websites for other purposes. You can use these websites to decode morse code, Playfair cipher as well.
Caesar cipher is an old technique to encrypt text using the letter shifting method. In this method, all the letters of a text are shifted by a fixed number, thus resulting in a ciphertext. Though it is a weak encryption method, useful at some places like in treasure hunting, brain teasers, puzzles for kids, etc. You can use the websites that I have listed here to generate one. You can easily encrypt or decrypt a text using Caesar cipher method in a few seconds.
5 Caesar Cipher Decoder Websites Free to Decrypt Caesar Cipher Online:
Cryptii
Cryptii is one of the best free Caesar cipher decoder websites out there. It supports a lot of other ciphers to decode and encode. You can use this website to easily decode a Caesar cipher if you know the shifting number. You just have to input the Caesar cipher and the corresponding shift. And it will reveal the message in just a single. You don’t have to register yourself here to use it. Here you can specify the shift as a negative number. However, for decoding Caesar cipher, here you can’t use the brute force method to decode the ciphertext. And apart from decoding Caesar cipher, you can use this website for encoding as well. You just have to specify the source text and shifting number you want to use. It has made it very simple to encode/decode Caesar cipher online.
Decode
Decode is quite a popular website where you will find a lot of tools to decipher messages, puzzles, treasure hunts, letter games, etc. And one of those decoders on the website is Caesar cipher decoder. Just like the website above, you can start using it right away. Enter the Caesar ciphertext on the website and specify the shifting parameter. But do note that this website doesn’t support negative shift numbers. If you want to specify the shift as a negative number, then simply subtract it from 26 and enter. For example, if the shift you want to specify is -3, then specify 23 as the shifting parameter. Also, if you don’t know the shift, you can use the brute force method to decrypt the cipher. The website is very powerful and you can easily crack any Caesar cipher in a single click.
Caesar Cipher Encrypt & Decrypt
Caesar Cipher Encrypt & Decrypt is another free website to decode Caesar cipher online for free. It allows you to decode a ciphered text by Caesar method to plain text. You can specify the input cipher and the shifting key. After that, it will show you the original text. And the best part is that it supports negative shifting numbers along with the brute force method to decipher the input Caesar cipher. The website is pretty simple and you can easily use it to get the original text out of a Caesar text in one click. Just specify the ciphertext, input the shift if you know it and then hit the “Decrypt” button. Also, if you don’t know the shift, then go with the brute force method.
Caesar Cipher Decryption Tool
Caesar Cipher Decryption Tool is yet another free tool that you can use to decipher Caesar text easily online for free. Here it doesn’t support brute force method to decrypt the Caesar cipher, but you can specify shift here. And here you don’t have to worry about the negative or positive shift. Just specify it along with the Caesar cipher and it will decode the specified text in the blink of an eye. The user interface of the website is simpler and it is an open source online tool to decrypt Caesar cipher. If you want to sneak into its code, then you can find that on GitHub. The link to the GitHub page is on the homepage of this tool.
Caesar Cipher Decoder
Caesar Cipher Decoder(home) is the last tool in my list to decode Caesar cipher online for free. It offers an extremely simple interface to decrypt the Caesar ciphertext that you have. Like some of the websites above, you cannot specify negative shift here, you will have to subtract it from 26. You can do both, encrypt the text with Caesar method and decrypt it. For the text decoding, simply enter the encoded text and then you can hit the “Translate Message” button. But do note that, if you want to decrypt a Caesar cipher, then you must know the shift parameter. As this tool doesn’t support brute force decryption method, it will take a huge amount of time to guess the correct shift for decoding the source encrypted text.
Final thoughts
These are the best free Caesar cipher decoder websites that you can try out to decode a text string which is encoded by the Caesar method. All these websites can decode the Caesar ciphertext and some of them even allow you to use bruteforce method to decode text. That is helpful in case you don’t know the shift number to decode a specific encoded text. In bruteforce method, these websites will show you every possible combination of the text decryption and you can choose the correct one from them.
