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Encode and decode private text messages with this offline text cipher encryptor.
Protect your text messages and explore classic cryptography with this offline text cipher encryptor. This utility allows you to encode and decode text using historic encryption methods. It is an educational tool for learning cryptography or creating secret messages for friends using Caesar cipher, Rot13, and Vigenere algorithms. Key Features: • Caesar cipher mode with custom numeric key shifts • Rot13 encryption for quick character rotation without keys • Vigenere cipher implementation for polyalphabetic text encryption • Single-tap buttons to switch between encoding and decoding actions • Clean input and output text boxes with simple copy options How to Use: • Type or paste your message into the text field • Choose your preferred algorithm from the selection tabs • Enter the required key shift or codeword if applicable • Tap encrypt to encode or decrypt to translate back Explore the fundamentals of classic encryption methods with this simple security tool. Privacy & Experience: • No ads • No in-app purchases • Works completely offline • No account required