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Text Encoder & Decoder

Encode and decode text using various formats including ROT13, Binary, Morse Code, Reverse Text, and Leetspeak.

Input
Output

How to Use the Text Encoder

Our text encoder/decoder makes it easy to work with various text encoding formats:

  1. 1.Select Format: Choose from ROT13, Binary, Morse Code, Reverse Text, or Leetspeak
  2. 2.Choose Mode: Select "Encode" or "Decode" (not needed for ROT13 and Reverse)
  3. 3.Enter Text: Type or paste your input text
  4. 4.Auto-Convert: Results appear instantly with auto-convert enabled
  5. 5.Try Examples: Click "Example" to see sample text for each format

Supported Encoding Formats

  • ROT13: Caesar cipher that shifts letters by 13 positions. Same operation for encode/decode.
  • Binary: Convert text to 8-bit binary representation (e.g., "A" = 01000001)
  • Morse Code: International Morse Code using dots and dashes
  • Reverse Text: Simply reverses the character order
  • Leetspeak (1337): Internet slang replacing letters with numbers (e.g., a=4, e=3, i=1)

What is ROT13?

ROT13 (rotate by 13 places) is a simple letter substitution cipher that replaces each letter with the letter 13 positions after it in the alphabet. Because the English alphabet has 26 letters, applying ROT13 twice returns the original text, making it symmetric for encoding and decoding.

While not cryptographically secure, ROT13 is commonly used to obscure spoilers, puzzle solutions, or offensive content in online forums and newsgroups.

Binary Encoding

Binary encoding converts each character to its 8-bit binary representation using ASCII or Unicode values. Each character becomes a sequence of 0s and 1s that computers use internally to represent text data.

This is useful for understanding how computers store text, educational purposes, or creating binary-encoded messages.

Morse Code

Morse code is a method of transmitting text using sequences of dots (.) and dashes (-). Developed in the 1830s-1840s, it's one of the earliest forms of digital communication and is still used in aviation, amateur radio, and assistive technology.

  • Supports letters, numbers, and common punctuation
  • Uses "/" to represent spaces between words
  • International standard for emergency SOS signals

Leetspeak (1337 Speak)

Leetspeak originated in the 1980s hacker culture and online gaming communities. It replaces standard letters with numbers and special characters that resemble them.

Common substitutions include: a→4, e→3, i→1, o→0, s→5, t→7. While once used to bypass text filters, it's now primarily used for stylistic or humorous purposes.

Common Use Cases

  • Education: Learn about different encoding methods and computer science concepts
  • Puzzles: Create or solve encoded puzzles and ciphers
  • Privacy: Obscure spoilers or sensitive content in public forums
  • Fun Messages: Send encoded messages to friends
  • Development: Test encoding/decoding functions in your applications

100% Private - Your Data Stays Local

All text encoding and decoding happens entirely in your browser. Your input text and encoded messages are never uploaded to any server, making it completely safe to encode private messages, passwords, or any sensitive information.

Features

Real-Time Conversion

See results instantly as you type with auto-convert enabled

Bidirectional

Easily encode and decode with mode switching

Example Texts

Load sample text to see how each format works

Copy to Clipboard

Quickly copy encoded or decoded results

Swap Function

Switch output to input for reverse operations

Mobile Friendly

Works perfectly on all devices and screen sizes