dCode is the universal site for decipher coded messages, cheating on letter games, solving puzzles, geocaches and treasure hunts, etc.
dCode.fr - dCode
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dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
dCode.fr
dCode.fr is a collection of over 900 tools for solving games, riddles, ciphers, mathematical problems, puzzles, etc.
Word Game Solvers
dCode offers tools for finding words and solving word games, including the Scrabble solver and Wordle solver. The tools can help complete crosswords, find solutions to word challenges, or explore possibilities with the anagram generator. For more search criteria, use the word search tool, browse lists of words beginning with specific letters or ending with specific letters, or use the advanced word search features, including regular expressions.
dCode provides tools for searching dictionaries and finding words to help solve a wide range of word games. Discover the word search tools!
Cryptography and Ciphers
dCode offers tools for decoding and decrypting a wide range of encoded messages. Its cipher identifier uses automated analysis to help identify different types of ciphers. Available tools include the Caesar cipher, the Vigenère cipher, the Polybius square, and many other historical and modern encryption methods.
dCode offers a large collection of tools for encoding and decoding messages using a wide range of cryptographic techniques. These tools help analyse encoded messages at different levels of complexity. Discover all cryptography tools!
Codes and Alphabets
dCode can decode many codes and writing systems, including Morse code, the A=1, Z=26 code, 1337 (Leet Speak), and the Braille alphabet. The tools can also generate barcodes and QR codes, which are useful for treasure hunts and geocaching.
dCode can encode and decode messages using various symbols in place of the traditional Latin alphabet. Discover all substitution cipher tools!
Calculators and Mathematics
dCode offers tools for solving mathematical problems, including an equation solver, Boolean expression calculators, prime factorisation tools, and a cryptarithm solver. The tools cover a wide range of tasks, from calculating the greatest common divisor (GCD) and converting numbers between bases with the base-N converter to calculating combinations (k out of n), working with probabilities, and reducing fractions to lowest terms. Practical tools are also available for writing numbers in words.
dCode, its tools, its codes would be nothing without mathematics and its number theories and especially arithmetic. Check all math tools!
Computer Science and Algorithms
dCode offers tools related to computing standards and algorithms, including ASCII, Base64, MD5 hashing, and Unicode. Many systems are based on binary code and related representations, such as BCD and Gray code. For advanced users, explore Brainfuck and its variants!
dCode and its scripts are based on programming, its techniques, methods, and so there are a lot of tools for geeks. Discover more IT tools!
Puzzle Game Solvers
dCode offers tools for solving puzzles and logic games, as well as performing random selections. These include a random selection tool, a solver for the Countdown numbers game, a Mastermind solver, and a Sudoku solver. Other logic puzzles are also available, such as the magic square and the Tower of Hanoi.
dCode offers tools for a wide range of games, from small logic puzzles to internationally known board games. Many games whose rules can be modelled mathematically can be analysed or solved using algorithms. Discover more game solvers!
Miscellaneous Tools and Data
dCode also offers many data-processing tools, such as finding differences between two texts and generating random selections. Image-processing tools include RGB channel separation, while text-processing tools include regular expression searches. Other tools provide access to reference data, including ISBN book searches and information about French departments. Tools are also available for finding a website's IP address. Finally, there are playful tools such as upside-down writing and text reversal.
dCode also has its unclassifiable pages, but very useful tools to complete the list of essential tools. Go to all misc tools!
Answers to Questions (FAQ)
How can a tool be found on dCode?
A search bar is available on every page. For an effective search, enter one or two keywords.
Example: caesar for the Caesar cipher (and its variants), or count for the Countdown numbers game solver
Where can the complete list of dCode tools be found?
How can a message be decrypted automatically?
dCode offers an AI-powered tool that helps identify the type of cipher used in a message. Try the cipher identification tool.
Source code
dCode retains ownership of the "dCode.fr" source code. Any algorithm for the "dCode.fr" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "dCode.fr" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "dCode.fr" or any other element are not public (except explicit open source licence). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.
Cite dCode
The content of the page "dCode.fr" and its results may be freely copied and reused, including for commercial purposes, provided that dCode.fr is cited as the source (Creative Commons CC-BY free distribution license).
Exporting the results is free and can be done simply by clicking on the export icons ⤓ (.csv or .txt format) or ⧉ (copy and paste).
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In a scientific article or book, the recommended bibliographic citation is: dCode.fr on dCode.fr [online website], retrieved on 2026-11-08,
