Ubbi Dubbi is a language game popularised by the 1970s PBS children's show Zoom. You speak it by inserting the sound 'ub' before every vowel sound in a word.

What counts as a vowel sound?

Each vowel letter (a, e, i, o, u) is treated as a vowel sound and gets 'ub' inserted in front of it. Consecutive vowels are each prefixed, matching the simple letter-based rule most players use.

Switch to decode mode and the tool removes every 'ub' that immediately precedes a vowel, reversing the transformation to recover the original text.

Does it preserve capitalisation?

Yes. When a capital vowel is prefixed, the capital is carried onto the inserted 'Ub' so 'Apple' reads naturally as 'Ubapplube'-style output without losing the original case.

Is my text uploaded anywhere?

No. The transformation runs entirely in your browser and nothing is sent to a server.

Ubbi Dubbi Transformer

Ubbi Dubbi is a spoken language game made famous by the PBS children’s series Zoom in the 1970s. The rule is delightfully simple: before every vowel sound you insert the syllable ub, turning ordinary speech into a fast, bubbly secret code. This tool both encodes plain text into Ubbi Dubbi and decodes it back.

How it works

Encoding scans the text letter by letter. Whenever it reaches a vowel (a, e, i, o, u), it inserts ub immediately before that vowel. So speak (s-p-e-a-k) becomes spubeubak — ub is placed before the e and again before the a. Consonants, spaces and punctuation are left untouched.

Decoding reverses this by removing each ub that sits directly in front of a vowel. Because the encoder only ever inserts ub+vowel, the decoder can safely strip those pairs and leave any naturally occurring ub (like in a word that already had no following vowel) in place. Capitalisation is carried onto the inserted syllable so the output reads naturally.

Example

The word hello (h-e-l-l-o) gains ub before the e and before the o, giving hubellubo. The greeting hi becomes hubi. Decoding hubellubo removes both ub syllables to restore hello.