How to Say "online translator" in Spanish
The Spanish word for “online translator” is “traductor” — A2 level. This is a very common word in everyday Spanish.

Examples
Uso un traductor en mi teléfono para leer el menú.
I use a translator on my phone to read the menu.
Mi hermano trabaja como traductor de libros de medicina.
My brother works as a translator of medical books.
El traductor automático cometió un error muy gracioso.
The machine translator made a very funny mistake.
People vs. Tools
In Spanish, the same word 'traductor' is used for both a human professional and a piece of software. The context usually tells you which one is being discussed.
Describing Women
When talking about a female translator, you change the ending to 'traductora' and use the female word for 'the' (la traductora).
Translator vs. Interpreter
Mistake: “Using 'traductor' for someone speaking at a live conference.”
Correction: Use 'intérprete' for spoken words. A 'traductor' almost always works with written documents.
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