Muchas manos en un plato hacen mucho garabato

Meaning: When too many people work on the same thing, the result is a mess.

Literally: Many hands on a plate make a mess

Example: “Cinco personas redactando el mismo informe… muchas manos en un plato hacen mucho garabato.” — Five people writing the same report... too many cooks spoil the broth.

Equivalents in English, French, Japanese, German, Italian, and 4 more languages

English: Too many cooks spoil the broth
French: Trop de cuisiniers gâtent la sauce (literally: Too many cooks spoil the sauce)
Japanese: 船頭多くして船山に登る (Sendō ōku shite fune yama ni noboru) (literally: With too many captains, the ship climbs the mountain)
German: Viele Köche verderben den Brei (literally: Many cooks spoil the porridge)
Italian: Tanti galli a cantar non fa mai giorno (literally: With so many roosters crowing, day never breaks)
Dutch: Veel koks bederven de brij (literally: Many cooks spoil the porridge)
Russian: У семи нянек дитя без глазу (U semi nyanek ditya bez glazu) (literally: With seven nannies, the child loses an eye)
Polish: Gdzie kucharek sześć, tam nie ma co jeść (literally: Where there are six cooks, there's nothing to eat)
Korean: 사공이 많으면 배가 산으로 간다 (Sagongi maneumyeon baega saneuro ganda) (literally: With too many boatmen, the boat ends up on a mountain)