Plain Text: the readable form and the hub of the whole tool. Every other format is decoded back to plain text before it is re-encoded, so choosing Plain Text as the output simply returns what was decoded from the input.

Flipped: reverses the order of the characters. You can reverse the whole text, each line, or each word. It is a simple visual obfuscation rather than a cipher.

Leetspeak: replaces letters with similar-looking symbols and digits, such as e to 3, o to 0 and l to 1. The built-in intensity replaces every eligible letter. Decoding is best-effort because one symbol can stand for more than one letter.

HTML Entities: writes characters as HTML references. Non-ASCII characters and the reserved special characters are escaped in decimal form, so the result is safe inside a web page.

Decimal, Octal, Binary and Hexadecimal: show each character as the number of its Unicode code point in base 10, 8, 2 or 16, separated by spaces, in lowercase form and without a prefix. These are the tool's built-in defaults for the numeric formats.

Base64: encodes bytes using a 64-character alphabet, the standard way to carry binary data in text such as email attachments or data URLs. The standard alphabet is used with padding kept.

Roman Numerals: a number notation that works on values from 1 to 3999. Because Roman numerals represent quantities, not letters, this format expects numbers as input and returns numbers when decoded.

Atbash: a substitution cipher from the ancient Near East that reverses the alphabet, mapping A to Z, B to Y and so on. It needs no key and is its own inverse, so encoding and decoding are the same operation.

Caesar and ROT13: shift every letter by a fixed amount. Caesar uses a shift of 3 in this tool; ROT13 is the special case of a shift of 13, which is also its own inverse. Non-letters are left untouched and case is preserved.

Vigenere: a polyalphabetic cipher that shifts each letter by a different amount taken from a repeating keyword. It is much stronger than a single Caesar shift, though still not secure by modern standards.

Pigpen: a symbol cipher historically used by secret societies, in which each letter is a fragment of a grid. Because pigpen has no official Unicode block, this tool uses a distinct Unicode symbol for each letter, so it encodes and decodes reliably but is an approximation of the hand-drawn original.

Morse Code: the telegraph alphabet of dots and dashes. Letters are separated by spaces and words by a slash.

ITA2 / CCITT-2: the five-bit teleprinter code also known as Baudot-Murray. It uses letter and figure shifts to cover letters, digits and punctuation, and the tool outputs the raw five-bit groups.

Navajo Code: the famous World War II code in which each English letter was spoken as a Navajo word. The tool maps each letter to its code word and decodes the words back to letters.

Enigma Machine: simulates the German Enigma I with three rotors, reflector B and an optional plugboard. The tool uses the default rotors I II III at positions AAA with no plugboard, and the machine is symmetric, so the same settings reverse the operation.

MD5 and SHA-1: cryptographic hash functions that turn any text into a fixed-length fingerprint, 32 or 40 hexadecimal characters. Hashing is one-way, so these two formats appear only as outputs and are not offered as inputs.

The tool works in two steps. It first decodes whatever you pasted into plain text, then encodes that text into every output format you have ticked. Live mode keeps both steps running as you type, so results appear without pressing Convert.

Start by choosing how to read the input. Leave "Interpret input as" on Auto-detect for unknown content, or pick the exact format, such as Base64 or Morse, when you know it. Then paste or type the content, or load a .txt file with the upload control.

Next, choose the output. Open the "Convert to" dropdown and tick one or more formats. Each selected format gets its own labeled field in the output panel, with a Copy button of its own, and the fields stay compact when several are shown.

Finally, collect the results. Copy any field individually with its own Copy link, or use the Copy all and Download all links at the bottom of the output panel, which produce a labelled list with one format per line.

Encoding changes the form of data without hiding it: Base64, hexadecimal, binary, HTML entities and Morse all keep the original recoverable by anyone who knows the rule. Encodings are about compatibility and safe transport, not secrecy.

Encryption changes data so that it cannot be read without a key. The ciphers here, namely Caesar, Vigenere, Atbash, ROT13, Pigpen and Enigma, are historical and educational. They are fun to explore and useful in puzzles, but they are not considered secure and must never be used to protect real secrets, passwords or personal data. Use a modern, well-reviewed encryption tool for anything that matters.

Hashing turns data into a fixed-length fingerprint that cannot be reversed. The same input always produces the same hash, and even a tiny change produces a completely different one. Hashes are used to check that a file is unchanged or to store password verifiers, never to recover the original text. Note also that MD5 and SHA-1 are old and are no longer considered collision-resistant for security work.

Identifying unknown text: paste a puzzling string, leave the input on Auto-detect and read the Plain Text output. When it suddenly shows words, you have found the encoding, and the stats line tells you which one was detected.

Decoding a single layer: choose the matching input format to turn Base64, hexadecimal, binary, HTML entities, Morse or a Caesar message back into readable text.

Preparing data for code: produce Base64 for an embed, hexadecimal or binary for a low-level routine, or HTML entities for a page, and tick several formats at once when you need more than one.

Teaching and learning: tick several output formats and compare how the same sentence looks in each encoding or cipher, then let students try to reverse a Vigenere or Enigma message.

Puzzles and escape rooms: create a trail by layering formats, for example Caesar then Base64 then hexadecimal, and hand the final string to the solver.

Quick fingerprints: produce an MD5 or SHA-1 digest to compare two short strings or to demonstrate how a hash changes when the input does.

Start with Auto-detect: when you do not know the encoding, let the tool recognise it. The stats line under the output tells you which format was detected, and you can always override it by picking one explicitly.

Decode before you re-encode: if the input is already encoded, set the input format first. The output formats are applied to the decoded text, so choosing the wrong input gives meaningless results.

Base64 is not encryption: anyone can decode it. Use it to carry data, never to protect it.

Watch the limited formats: Morse, ITA2 and Navajo cover only certain characters, Roman numerals need numbers, and hashes cannot be reversed. The tool flags anything it had to skip or cannot do.

Enigma settings are fixed here: the tool uses the default rotors I II III at positions AAA with no plugboard. A message encrypted with different settings will not decode correctly.

Verify a hash, do not trust it blindly: MD5 and SHA-1 are useful for quick comparisons and teaching, but they are no longer recommended for security because collisions can be constructed.