🌐
Crack The Codes
bestcodes.weebly.com
Crack The Codes - Home
You can click the button below to play a code cracking game made by best codes ... This website has all of the coolest codes and ciphers. If you would like to submit one to my website you can email it to me at [email protected] It is a perfectly simple website with instructions and the origin ...
🌐
Ciphertools
ciphertools.co.uk
CipherTools
Get ciphers cracked automatically, with the cracked texts presented in the words of their original language (English, French or German). Either copy in your own ciphertext or get the website to set you a random ciphertext with varying lelves of difficulty. CipherTools also lets you create your own ciphers, and provides a full set of instructions and tips for cracking ciphers.
Discussions

Looking for a website to help with cracking simple cryptograms by hand
I like https://www.boxentriq.com/code-breaking/substitution-cipher for cryptograms b/c they have the option of manual solving. With it, you can work through the cryptogram by hand in a convenient way (esp when you have ideas for a partial solve that you can work from) More on reddit.com
🌐 r/codes
6
1
April 18, 2025
Some tools that I've been using to try to crack the code.
A good trick for this too is to make sure you set the dictionary weight really low so that it can apply statistically likely characters into slots. This helps for dealing with words that aren’t in the dictionary or in a language their dictionary supports. More on reddit.com
🌐 r/TotKLang
2
9
September 27, 2022
A Code and Cipher Website

Thanks for your post, u/Anaxamander57! Please follow our RULES when posting.

Make sure to include CONTEXT: where the cipher originated (link to the source if possible), expected language, any clues you have etc.

If you are posting an IMAGE OF TEXT which you can type or copy & paste, you MUST comment with a TRANSCRIPTION (text version) of the message. Include the text [Transcript] in your comment.

If you'd like to mark your post as SOLVED comment with [Solved]

WARNING! You will be BANNED if you DELETE A SOLVED POST!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

More on reddit.com
🌐 r/codes
1
2
May 21, 2024
A general question on how to go about manually cracking codes
I prefer to write my own decryption. That way, when I solve a cipher puzzle I have actually solved it, not relied on an online tool. I think my Vigenere decryption algorithm is better than any automated tool, FWIW. My others, maybe not so much, and I like the interface of a couple of simple-sub solvers that I tend to use them. I intensely dislike cipher cache puzzles that do not specify the cipher type and then do not adhere to ACA guidelines for ciphertext length and key encoding. IMO, those are very poor geocaching puzzles. I do like non-standard implementations of ciphers where: The cipher is specified Any non-standard modification are likewise specified. For that kind of cache, the challenge is to solve the cipher, not to find the online tool that will do it for you. Those are good puzzle caches. BTW, you can find an excellent guide to ACA ciphers here . More on reddit.com
🌐 r/geocachingpuzzles
9
3
April 24, 2023
🌐
Businer
businer.com › codecracker.php
Code Cracker - Businer.com
Code Cracker is a tool that can help to crack many classic encryption codes (developed before than the XX century). In some cases is able to crack the code by itself trying all the possible combinations (brute force and ignorance).
🌐
Boxentriq
boxentriq.com › home
Online Tools for Ciphers, CTFs and Code-breaking | Boxentriq
Free tools and guides for solving CTFs, analyzing codes, cracking ciphers, finding hidden data, aiding in word games, and assisting with math.
🌐
Open Learning
open.edu › openlearn › codebreak
Could you be a code breaker? | OpenLearn - Open University
Find out more about The Open University's Mathematics courses and qualifications · Code Break is an interactive Web app consisting of three ciphers: Pigpen, Caesar and simple substitution (solved by frequency ...
🌐
Reddit
reddit.com › r/codes › looking for a website to help with cracking simple cryptograms by hand
r/codes on Reddit: Looking for a website to help with cracking simple cryptograms by hand
April 18, 2025 -

Hello everyone, my D&D group has recently started to be given simple ciphers and been asked to crack them by hand. They are simple Rot or letter replacement ciphers so they're not too difficult. They are however a bit long and cracking them completely by hand takes some time (especially since I'm pretty new to this.) Do you all know any websites that allow you to input a custom string of letters/numbers that works similarly to Razzle Puzzles Cryptogram Section, where it replaces all instances of the same letter with the one you've input? I've looked through the first few pages of google and haven't found anything yet but I could just be searching the wrong thing.

Thank you very much!

V sbyybjrq gur ehyrf

🌐
Simon Singh
simonsingh.net › The_Black_Chamber › substitutioncrackingtool.html
The Black Chamber - Substitution Cracking Tool
If you want to crack a message encrypted with the substitution cipher, then here is an interactive tool.
🌐
Google Sites
sites.google.com › view › crackthecode › home
Crack the CODE
Crack the CODE · New to Digital Breakouts? You are looking for clues to unlock the form below. Clues might be anywhere so don't be afraid to click around.
Find elsewhere
🌐
Transum Mathematics
transum.org › software › Fun_Maths › Code
Code Cracker
April 30, 2018 - Crack the codes by dragging the plaintext letter onto the ciphertext equivalent. There are three levels of difficulty and many hints on code breaking techniques.
🌐
FBI
fbi.gov › news › stories › can-you-crack-a-code
Can You Crack a Code? | Federal Bureau of Investigation
September 7, 2020 - A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites. ... The cryptanalysts in our FBI Laboratory are pros at code-cracking…but it has been a few years since we have challenged you to give it a go.
🌐
Crack The Codes
bestcodes.weebly.com › code-cracking-tools.html
Code Cracking Tools - Crack The Codes
Knowing letter and word frequencies when you are trying to decode something is very important, So here are some charts to help you out. Wordcount.org is another useful tool that will help you find...
🌐
Invent with Python
inventwithpython.com › cracking
Cracking Codes with Python - Invent with Python
"Cracking Codes with Python is a fantastic introduction to the Python programming language -- and coding in general -- using the super-fun theme of codebreaking. What's especially fun about this approach is that you can use these secret codes to send messages to your friends -- it's way better than invisible ink.
🌐
Schoolcodebreaking
schoolcodebreaking.com › code-breaking-resources
Code Breaking Resources | The School Code Breaking Site
August 18, 2022 - Top Resources 1) The Boxentriq site has a large number of code generators for Caesar shifts, transposition ciphers, pigpen, Vignere codes and more. This is a great resource for generating and unde…
🌐
CacheSleuth
cachesleuth.com › multidecoder
Multi Decoder - CacheSleuth
Paste cipher text and run 250+ decoders at once, Caesar, Vigenère, Bacon, Morse, Polybius, Rail Fence, and many more. Results are ranked so the right answer rises to the top.
🌐
Reddit
reddit.com › r/totklang › some tools that i've been using to try to crack the code.
r/TotKLang on Reddit: Some tools that I've been using to try to crack the code.
September 27, 2022 -

Hey!

I'm glad to see this spun off into a whole community. I've been trying to use cryptogram solvers to speed up letter replacements and attempting to get some auto solves (none so far) and I wanted to share the resources in case someone else could find them useful.

https://www.boxentriq.com/code-breaking/cryptogram This is the one that has auto solving with a lot of settings to refine results.

https://www.boxentriq.com/code-breaking/frequency-analysis This is a good analysis tool that instantly shows n-gram frequencies for a given cypher-text.

I hope this helps crack the code!

🌐
Braingle
braingle.com › games › codebreaker
Braingle » Code Breaker
Can you break the code in this free online game?
🌐
Lovatts Crosswords & Puzzles
lovattspuzzles.com › home › online puzzles & competitions › play lovatts daily online code cracker
Play Lovatts Daily Online Code Cracker | Updated Daily
June 30, 2025 - Welcome to Lovatts daily online Code Cracker puzzle! Code Crackers are for crossword lovers looking for a change of pace. Engage your mind with this captivating blend of logic and language, where numbers replace letters in a clueless crossword grid.
🌐
Barefootcomputing
barefootcomputing.org › resources › code-cracking
Code Cracking | Resources | Barefoot Computing
This unit of six lessons introduces pupils to the history of computing and, in particular, how computers were used as code-cracking devices
🌐
YourLifeChoices
yourlifechoices.com.au › home › games › code cracker puzzle
Code Cracker Puzzles | Seniors Games | YourLifeChoices
August 27, 2025 - Put your skills to the test and crack the code in our daily code cracker puzzle – one of YourLifeChoices' many seniors brain training games!