dCode.fr
@dcode.fr
Online toolbox (solvers, cryptography, mathematics, word games, etc.)
https://www.dcode.fr/en
https://www.dcode.fr/en
Change one letter at a time to transform a word into another. Explore word transformations with dCode: www.dcode.fr/word-letter-...
One Letter Change (or +) to Make a New Word - Online Changer Solver
Tool to change one or more letters in a word. By changing one letter in a word, it is possible to make other new words according to some variations.
www.dcode.fr
September 10, 2026 at 6:39 AM
Change one letter at a time to transform a word into another. Explore word transformations with dCode: www.dcode.fr/word-letter-...
Need to decode a ROT cipher? Use dCode to test different alphabet rotations and identify the original text: www.dcode.fr/rot-cipher
ROT Cipher - Rotation - Online Rot Decoder, Solver, Translator
Tool to decrypt/encrypt by ROT. The code ROT for Rotation (which most common variant is Caesar Cipher) is the easiest shift-based encryption cipher.
www.dcode.fr
September 3, 2026 at 7:28 PM
Need to decode a ROT cipher? Use dCode to test different alphabet rotations and identify the original text: www.dcode.fr/rot-cipher
Access a collection of Gravity Falls cipher tools to decrypt hidden messages or create your own encoded text efficiently: www.dcode.fr/gravity-fall...
Gravity Falls Ciphers - Online Decoder, Encoder, Translator
Tool to decrypt / encrypt with the different ciphers used in the TV series Gravity Falls whose authors were fond of cryptograms.
www.dcode.fr
March 26, 2026 at 6:45 PM
Access a collection of Gravity Falls cipher tools to decrypt hidden messages or create your own encoded text efficiently: www.dcode.fr/gravity-fall...
The dCode Base58 tool allows encoding and decoding data using the Base58 alphabet, designed to avoid visually ambiguous characters. Commonly applied in cryptocurrency wallet addresses and shortened identifiers.
www.dcode.fr/base-58-cipher
www.dcode.fr/base-58-cipher
Base58 Converter - Online Base 58 Decoder, Encoder
Tool to encrypt / convert with base 58 composed of alphanumeric characters except 0,O,I,l to avoid reading errors.
www.dcode.fr
March 12, 2026 at 7:54 PM
The dCode Base58 tool allows encoding and decoding data using the Base58 alphabet, designed to avoid visually ambiguous characters. Commonly applied in cryptocurrency wallet addresses and shortened identifiers.
www.dcode.fr/base-58-cipher
www.dcode.fr/base-58-cipher
Use the dCode Enigma Machine Cipher to reproduce historical Enigma encryption, including rotor and reflector behavior, for educational or research purposes. www.dcode.fr/enigma-machi...
Enigma Machine Cipher - Online Decoder, Encoder
Tool to decode/encode with Enigma automatically. Simulate German communications during World War II.
www.dcode.fr
February 26, 2026 at 7:19 PM
Use the dCode Enigma Machine Cipher to reproduce historical Enigma encryption, including rotor and reflector behavior, for educational or research purposes. www.dcode.fr/enigma-machi...
Use the Matrix Inverse calculator from dCode to determine M^-1 for any square matrix, when the inverse exists. Designed for linear algebra applications. www.dcode.fr/matrix-inverse
Inverse Matrix Calculator - Invertible (+ Modulo) - Online
Tool to invert a matrix. The inverse of a square matrix M is a matrix denoted M^-1 such as que M.M^-1=I where I is the identity matrix.
www.dcode.fr
February 19, 2026 at 7:04 AM
Use the Matrix Inverse calculator from dCode to determine M^-1 for any square matrix, when the inverse exists. Designed for linear algebra applications. www.dcode.fr/matrix-inverse
Remember texting on numeric keypads? dCode's T9 tool lets you encrypt and decrypt messages using classic SMS predictive input. www.dcode.fr/t9-cipher
T9 Converter (Text Message) - Online Phone SMS Decoder, Translator
Tool to decrypt/encrypt with T9 mode (predictive) for SMS text messages for (old) mobile phones or numeric keypads.
www.dcode.fr
January 29, 2026 at 9:08 PM
Remember texting on numeric keypads? dCode's T9 tool lets you encrypt and decrypt messages using classic SMS predictive input. www.dcode.fr/t9-cipher
dCode offers practical tools for working with the Rail Fence cipher, including brute-force decryption support. www.dcode.fr/rail-fence-c...
Rail Fence (Zig-Zag) Cipher - Online Decoder, Encoder, Solver
Tools to decode/encode Rail Fence, a cipher using zig-zag writing, automatic decryption with brute-force mode.
www.dcode.fr
January 15, 2026 at 7:50 PM
dCode offers practical tools for working with the Rail Fence cipher, including brute-force decryption support. www.dcode.fr/rail-fence-c...
Analyze audio files with dCode's Spectral Analysis tool. Inspect sound frequencies and visualize hidden data in WAV, MP3, and more. www.dcode.fr/spectral-ana...
Spectrum Analyzer - Spectrogram - Online Audio File Spectral Analysis
Tool to perform spectral analysis of audio files (WAV, MP3, etc.) and display any hidden data in sound frequencies and their visualization.
www.dcode.fr
January 8, 2026 at 5:23 PM
Analyze audio files with dCode's Spectral Analysis tool. Inspect sound frequencies and visualize hidden data in WAV, MP3, and more. www.dcode.fr/spectral-ana...
dCode offers an online Bacon cipher tool that applies the classic A/B based substitution method for quick decryption/encryption : www.dcode.fr/bacon-cipher
Baconian Cipher - Francis Bacon Code AABAA - Online Decoder, Solver
Tool to decrypt/encrypt Bacon cipher, a 2-letter substitution alphabet which replace a character with a group of 5 formed with two letters (often A and B).
www.dcode.fr
November 27, 2025 at 1:41 PM
dCode offers an online Bacon cipher tool that applies the classic A/B based substitution method for quick decryption/encryption : www.dcode.fr/bacon-cipher
Decode or encode text using the classic T9 predictive system on dCode: www.dcode.fr/t9-cipher
T9 Converter (Text Message) - Online Phone SMS Decoder, Translator
Tool to decrypt/encrypt with T9 mode (predictive) for SMS text messages for (old) mobile phones or numeric keypads.
www.dcode.fr
November 13, 2025 at 9:22 AM
Decode or encode text using the classic T9 predictive system on dCode: www.dcode.fr/t9-cipher
dCode provides a dedicated RSA numbers decryption tool for computing large numbers and decoding RSA-encrypted text. Learn more: www.dcode.fr/rsa-cipher
RSA Cipher Calculator - Online Decoder, Encoder, Translator
Tool to decrypt/encrypt with RSA cipher. RSA is an asymmetric algorithm for public key cryptography created by Ron Rivest, Adi Shamir and Len Adleman. It is the most used in data exchange over the Int...
www.dcode.fr
October 23, 2025 at 5:52 PM
dCode provides a dedicated RSA numbers decryption tool for computing large numbers and decoding RSA-encrypted text. Learn more: www.dcode.fr/rsa-cipher
dCode offers a Base62 encoder/decoder for alphanumeric conversions. Useful for compact data representation.
www.dcode.fr/base62-encod...
www.dcode.fr/base62-encod...
Base62 Encoding - Online Base 62 Decoder, Encoder, Translator
Tool for encoding / decoding with the Base62 encoding system, using all alphanumeric characters (upper and lower case) forming a base 62.
www.dcode.fr
October 16, 2025 at 6:47 AM
dCode offers a Base62 encoder/decoder for alphanumeric conversions. Useful for compact data representation.
www.dcode.fr/base62-encod...
www.dcode.fr/base62-encod...
Compute and simplify any square root instantly with dCode's Square Root Calculator. Try it here: www.dcode.fr/square-root
Square Root Calculator √ - Simplifier - SQRT Online
Tool to compute and simplify a square root. The square root for a number N, is the number noted sqrt(N) that, multiplied by itself, equals N.
www.dcode.fr
October 9, 2025 at 5:27 AM
Compute and simplify any square root instantly with dCode's Square Root Calculator. Try it here: www.dcode.fr/square-root
Comprehensive collection of symbol ciphers and their corresponding decryption/encryption tools: www.dcode.fr/symbols-ciph...
List of Symbols Cipher - Online Decoder, Translator
Tools and codes and ciphers list including symbols (glyphes) with direct links to pages to decrypt/encrypt with them.
www.dcode.fr
October 3, 2025 at 7:44 AM
Comprehensive collection of symbol ciphers and their corresponding decryption/encryption tools: www.dcode.fr/symbols-ciph...
Decode or encode Brainfuck scripts easily with dCode’s online tool. Test it here: www.dcode.fr/brainfuck-la...
Brainfuck Language - Online Decoder, Translator, Interpreter
Tool to decode/encode in Brainfuck, an esoteric programming language consisting of characters like ++++---[+++].
www.dcode.fr
September 25, 2025 at 5:34 PM
Decode or encode Brainfuck scripts easily with dCode’s online tool. Test it here: www.dcode.fr/brainfuck-la...
Encrypt or decrypt messages with the Affine cipher online. Decode text with (ax + b) mod 26 brute-force here : www.dcode.fr/affine-cipher
Affine Cipher - Online Decryption, Decoder, Encoder, Calculator
Tool to decrypt/encrypt with Affine cipher, an encryption function with additions and multiplication that codes a letter into another with value (ax + b) modulo 26.
www.dcode.fr
September 11, 2025 at 6:35 AM
Encrypt or decrypt messages with the Affine cipher online. Decode text with (ax + b) mod 26 brute-force here : www.dcode.fr/affine-cipher
Use dCode to translate and interpret the Standard Galactic Alphabet from popular games like Minecraft: www.dcode.fr/standard-gal...
Standard Galactic Alphabet (Minecraft) Translator - Online Decoder
Tool to decipher / read the standard galactic alphabet (SGA), used in Commander Keen then in other universes like Quake 4 or Minecraft (enchantment table alphabet). Instantly encode, translate and rec...
www.dcode.fr
September 4, 2025 at 5:51 AM
Use dCode to translate and interpret the Standard Galactic Alphabet from popular games like Minecraft: www.dcode.fr/standard-gal...
Decode or encode Wingdings symbols instantly using dCode's Wingdings glyphs converter tool: www.dcode.fr/wingdings-font
Wingdings Font Translator - Online Decoder/Converter
Tool to decrypt/encrypt with Wingdings. Wingdings is a character font with a set of pictograms or dingbats used on the Windows operating system.
www.dcode.fr
August 28, 2025 at 6:57 AM
Decode or encode Wingdings symbols instantly using dCode's Wingdings glyphs converter tool: www.dcode.fr/wingdings-font
Use this dCode's tool to convert messages to Morse code or interpret Morse signals.
Visit: www.dcode.fr/morse-code
Visit: www.dcode.fr/morse-code
Morse Code Translator - Online Alphabet Decoder & Encoder
Tool to decrypt/encrypt Morse code. Morse code is a system allowing to code a message by short and long impulsion. It is one of the first telecommunication codes.
www.dcode.fr
July 31, 2025 at 5:52 AM
Use this dCode's tool to convert messages to Morse code or interpret Morse signals.
Visit: www.dcode.fr/morse-code
Visit: www.dcode.fr/morse-code
Solve any Lights Out puzzle efficiently using dCode's Lights Out Solver. Input your grid and get the optimal solution.
www.dcode.fr/lights-out-s...
www.dcode.fr/lights-out-s...
Lights Out Solver - Online Game Solving Helper
Tool/solver to resolve the Lights Out levels, a puzzle game based on a change of state/color of the cells of a grid (and its neighbours).
www.dcode.fr
May 29, 2025 at 7:07 AM
Solve any Lights Out puzzle efficiently using dCode's Lights Out Solver. Input your grid and get the optimal solution.
www.dcode.fr/lights-out-s...
www.dcode.fr/lights-out-s...
Use dCode’s tool to generate all possible combinations of k elements from a set of n objects. Ideal for mathematical and statistical applications.
www.dcode.fr/combinations
www.dcode.fr/combinations
Combination Calculator - N Choose K - Online Number Generator
Tool to generate combinations. In mathematics, a choice of k elements out of n distinguishable objects (k choose n), where the order does not matter, is represented by a list of elements, which cardin...
www.dcode.fr
May 22, 2025 at 12:08 PM
Use dCode’s tool to generate all possible combinations of k elements from a set of n objects. Ideal for mathematical and statistical applications.
www.dcode.fr/combinations
www.dcode.fr/combinations
Perform XOR operations on text or binary data with ease. The dCode XOR Cipher tool handles all formats.
Visit: www.dcode.fr/xor-cipher
Visit: www.dcode.fr/xor-cipher
XOR Cipher - Exclusive OR Calculator - Online Decoder, Encoder
Tool to decrypt/encrypt with XOR cipher (eXclusive OR), a moder cryptographic method that consists in encrypting a binary message with a repeated key using a XOR multiplication. Supports ASCII, hexade...
www.dcode.fr
May 15, 2025 at 10:22 AM
Perform XOR operations on text or binary data with ease. The dCode XOR Cipher tool handles all formats.
Visit: www.dcode.fr/xor-cipher
Visit: www.dcode.fr/xor-cipher
D0 y0u und3r574nd 1337 5p34k?
Use dCode’s translator to encode or decode 1337 speak
www.dcode.fr/leet-speak-1...
Use dCode’s translator to encode or decode 1337 speak
www.dcode.fr/leet-speak-1...
Leet Speak Translator - 1337 - Online Leetspeak Decoder, Encoder
Tool to translate/write in leet (1337). Leet speak 1337 5p34k, uses combinations of characters and symbols to rewrite letters with others graphically close.
www.dcode.fr
May 8, 2025 at 2:03 PM
D0 y0u und3r574nd 1337 5p34k?
Use dCode’s translator to encode or decode 1337 speak
www.dcode.fr/leet-speak-1...
Use dCode’s translator to encode or decode 1337 speak
www.dcode.fr/leet-speak-1...
Convert text using the Atbash substitution cipher (A ↔ Z, B ↔ Y, etc.).
Tool available at: www.dcode.fr/atbash-cipher
Tool available at: www.dcode.fr/atbash-cipher
Atbash Cipher - Backwards/Reverse Alphabet - Online Decoder/Translator
Tool to decrypt/encrypt with Atbash (Mirror code), a substitution cipher replacing the first letter of the alphabet with the last, the second with the penultimate etc.
www.dcode.fr
May 1, 2025 at 1:21 PM
Convert text using the Atbash substitution cipher (A ↔ Z, B ↔ Y, etc.).
Tool available at: www.dcode.fr/atbash-cipher
Tool available at: www.dcode.fr/atbash-cipher