CIPHER TOOLS

Free cryptographic utilities and analysis tools

Substitution Ciphers

ROT13 Cipher

Beginner Mono

Classic spoiler hider - reversible letter rotation

Launch β†’

Atbash Cipher

Beginner Mono

Ancient Hebrew reverse alphabet cipher

Launch β†’

Caesar Cipher

Beginner Mono

Classic shift cipher - encrypt/decrypt by shifting letters

Launch β†’

Vigenère Cipher

Intermediate Poly

Polyalphabetic cipher using a repeating key

Launch β†’

Beaufort Cipher

Intermediate Poly

Reciprocal cipher - encryption equals decryption

Launch β†’

Keyed Substitution

Intermediate Mono

Alphabet substitution using keyword-based cipher

Launch β†’

Transposition Cipher

Intermediate Trans

Rearrange text using columnar transposition methods

Launch β†’

Templar Cipher Tool

Intermediate Symbol Substitution, Mono

Medieval symbol-based cipher system

Launch β†’

Blockchain Education

Hash Chain Visualizer

Intermediate Blockchain

Understand how blockchain data is chained together using cryptographic hashes

Launch β†’

Mining Simulator

Intermediate Blockchain

Experience cryptocurrency mining in real-time with adjustable difficulty

Launch β†’

Merkle Tree Explorer

Advanced Blockchain

Learn how blockchain transactions are organized and verified with Merkle trees

Launch β†’

Transaction Simulator

Advanced Blockchain

Build and broadcast cryptocurrency transactions with UTXOs and fees

Launch β†’

Smart Contract Puzzle

Advanced Blockchain

Interact with smart contracts, execute functions, and learn Solidity concepts

Launch β†’

Blockchain Steganography

Advanced Blockchain

Hide secret messages in blockchain transactions and export/import blockchains

Launch β†’

Encoding Tools

LSB Encoder

Intermediate Steganography

Hide data in image least-significant bits

Launch β†’

Text Steganography

Intermediate Encoding

Hide messages in plain text

Launch β†’

Base64 Chain

Intermediate Analysis

Encode/decode multiple Base64 layers

Launch β†’

Hexadecimal Converter

Beginner Conversion

Convert between text, hex, decimal, and binary

Launch β†’

UTF-8 Encoder/Decoder

Beginner Encoding

UTF-8 character encoding and decoding

Launch β†’

Binary ↔ Text

Beginner Encoding

Convert between binary and text representations

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Morse Code

Beginner Encoding

Text to/from Morse code with audio playback

Launch β†’

Base64 Tool

Beginner Encoding

Encode and decode data using Base64 encoding

Launch β†’

Image Analysis

LSB Decoder

Advanced Stego

Extract hidden data from image LSB layers

Launch β†’

Color Channel

Intermediate Analysis

Separate and analyze RGB color channels

Launch β†’

Image Metadata

Beginner Analysis

View EXIF data and image properties

Launch β†’

Mathematical

Prime Checker

Beginner Numbers

Test primes and find prime factors

Launch β†’

Fibonacci Calc

Beginner Sequences

Generate sequences and find specific terms

Launch β†’

Sequence Analyzer

Intermediate Patterns

Detect patterns and predict next terms

Launch β†’

Logic Tools

Universal Logic Grid

Advanced Logic

Solve logic puzzles with custom constraints

Launch β†’

Identity Logic Grid

Advanced Logic

Specialized grid for identity-based puzzles

Launch β†’

Timeline Visualizer

Intermediate Logic

Analyze temporal sequences and causality chains

Launch β†’

Cryptanalysis

Frequency Analysis

Intermediate Analysis

Analyze letter patterns to break substitution ciphers

Launch β†’

Index of Coincidence

Advanced Analysis

Calculate IC to determine cipher type

Launch β†’

Substitution Solver

Advanced Solver

Automated substitution cipher breaking tool

Launch β†’

Columnar Transposition Analyzer

Advanced Analysis

Break columnar transposition ciphers

Launch β†’

Kasiski Examination

Advanced Analysis

Find polyalphabetic cipher key length

Launch β†’

XOR Cipher Encoder/Decoder

Intermediate Symmetric, Encryption, Analysis

XOR-based encryption and decryption

Launch β†’