Take the vowels out.

What it does

Disemvoweling removes the vowel letters from text. It is a small, old internet trick: the consonants and the shape of the sentence carry enough information that a reader can often reconstruct the words. The tool performs exactly that character-level operation, with no dictionary and no attempt to rewrite the result into pronounceable text.

A, E, I, O, and U are removed in both upper and lower case. Punctuation, digits, spaces, line breaks, and consonants stay. Accented vowels are separate characters and are not removed by this basic filter, so café becomes cfé rather than cf. That limitation is part of the simple rule; it is not a bug in the display.

Y and spacing

Y is the interesting case. In “rhythm” it is doing the work of a vowel; in “yellow” it is a consonant. A character filter cannot know which role it plays without a pronunciation dictionary, so the choice is yours. Turn Y on for the aggressive version, or leave it off to keep words like “my” and “why” more recognizable.

Removing letters leaves gaps. Collapsing doubled spaces makes the output tidier, but it also loses the exact position of the missing letters. Turn the option off if you want to preserve the spacing for a puzzle or a diff. Trimming lines removes leading and trailing spaces; leave it on for ordinary text and off when indentation matters.

Examples

The quick brown fox jumps over the lazy dog.

Th qck brwn fx jmps vr th lzy dg.

Every A, E, I, O, and U disappears. The capital T in “The” stays because only the vowel is removed; the remaining letters keep their case. Punctuation and word order are untouched, so the sentence still has a recognizable rhythm.

Rhythm and myth, yellow and yes.

Rhthm nd mth, yllw nd ys.

Rhythm becomes Rhthm and myth becomes mth. Yellow loses its Y and its vowels, becoming yllw, and yes becomes ys. The comma and the spaces around it remain. This version is harder to read, which is usually the point.

Limits worth knowing

• It is not encryption. The transformation is public and easily reversed with context, a word list, or a language model. Never use it for passwords or confidential text.
• It is not a pronunciation tool. The rule is based on the letters A, E, I, O, U, and optionally Y, not on sounds. Silent E, vowel teams, and accented letters are not modeled.
• Accented vowels survive. É, ü, and other accented characters are distinct Unicode letters. Remove accents first if you want those marks treated as their base vowels.
• Spacing is a choice. Collapsing spaces can join words in unexpected ways when a vowel was between them. Check the result before using it as an identifier or a key.
• The original is not stored. Copy the result before closing the tab. There is no history and no server-side copy to recover.

Page updated 27 October 2026