TEXT CONVERTERS & CIPHERS

Turn any text into something else

Morse, runes, Base64, ciphers and more. Type on one side, get the result on the other.

From

Conversion

To

Text12 characters

Base64Updates as you type

SGVsbG8sIHdvcmxk

16 characters

Character set

Variant

ABOUT

What this site does

StringMash turns text into other alphabets and formats. Morse, runes and Ogham; Base64, binary and character codes; the classic puzzle ciphers. Type on one side and the result appears on the other. There's no convert button anywhere on the site.

Every converter that can run backwards does, and the arrows between the boxes re-run what you typed in the other direction. Where a conversion only goes one way, like Pig Latin, the page says so instead of guessing.

Holding something unreadable? Start at the cipher identifier, which tries every conversion here and ranks what comes back.

SCRIPTS

Old and signalling alphabets

Morse codeText ⇄ dots and dashes, with sound

RunesEnglish ⇄ Elder Futhark and more

OghamNotches along a stone edge

CIPHERS

Puzzles, codes and classics

ROT13Rotate letters by 13

Caesar cipherAny shift, with auto-detect

AtbashA↔Z, B↔Y and so on

Pig LatinEllohay orldway

Playfair cipherEncrypt letters in pairs, using a 5x5 square built from a key phrase.

Tap codeTwo runs of taps per letter, one for the row and one for the column.

Polybius squareTurn each letter into the row and column it occupies in a 5x5 grid.

Affine cipherMultiply the letter's position, add a shift, and wrap at 26.

DEVELOPER

Encodings for the web

Base64Encode and decode

BinaryText ⇄ 0s and 1s

URL encodePercent-encoding

HexText ⇄ hexadecimal

Text to binaryEncode any character as the bits a computer stores, UTF-8 and all.

Text to hexTwo hex digits a byte, the shortest exact way to write one.

Remove line breaksPut hard-wrapped text from a PDF or an email back into paragraphs.

Sentence caseRebuild capitals in text that arrived shouting, or not capitalised.

JSON to CSVTurn a list of objects into a spreadsheet, nesting flattened into columns.

YAML to JSONRead a config file into JSON, with the line number when it will not parse.

Markdown to HTMLHeadings, emphasis, links, lists, code and tables, turned into HTML.

JSON escapeMake any text safe to drop inside a JSON string, and take it back.

FUN TEXT

Styled text to copy and paste

Zalgo textStack combining marks until the text overflows its own line.

SuperscriptRaise letters and digits into real characters, not formatting.

StrikethroughA line through your text that survives a copy and paste.

Bubble textEvery letter inside its own circle, outline or filled.

Mirror textReversed and flipped, the way a mirror would show it.

Upside-down textRotate a line by 180 degrees using borrowed letters.

Text repeaterRepeat a line up to 100 times, with any separator.

LeetspeakSwap letters for the digits and symbols that look like them.