All throughout the Star Wars movies, we see the droids emit several beeps and whirs, and the humans reply to the droid as if it were a normal conversation.

How can every character in Star Wars fluently understand droidspeak?

We know that Anakin Skywalker could speak several languages by the age of 9, including droidspeak. Is this language just something standardly taught to young children across the galaxy? Droidspeak is a complicated language. Are children in Star Wars born knowing it? Do they learn it like their own language, from their parents and surroundings?

(This question has been associated with "How do people understand astromech droids?". I am asking about all types of droids and their language droidspeak (or Binary), not specifically astromech droids, although the questions are fundamentally similar)

**edit: I have found evidence for this question in the show Star Wars Rebels (which is canon). In one scene, Zeb says to Ezra "Wait, you actually understand that glorified beeping garbage can?" (referring to a droid) and Ezra responds: "Yeah, sort of. I'm learning." which implies that droidspeak can be learned, but is not widely known. **

  • Everyone wears a little yellow Babel fish inside their ears?
    – RichS
    Commented Aug 3, 2020 at 6:15
  • Are to sure everyone understands droidspeak? Throughout the films, it seems we only actually see a handful of people at most interact with non-Basic-speaking droids. Commented Aug 3, 2020 at 6:30
  • 1
    We see some characters understand Morse Code in World War Two movies. Not everyone in WW2 understood Morse Code.
    – JdeBP
    Commented Aug 4, 2020 at 11:43

2 Answers 2


"Most people" don't speak droidspeak. Only those that work around droids bother to learn it, and even then inexpertly.

Notable characters who can understand droid (without a translator device) are;


“Artoo?” he asked, brightening, and a moment later the blue-and-white astromech rolled into view, chirping and whistling at length.

“Yes,” Luke said. Decades of missions with R2-D2 had left him reasonably fluent in droidspeak, but the astromech’s list of accusations was both lengthy and highly specific. “No, I—yeah, it’s true.”

R2-D2 squawked derisively.

“Hey, sacred island,” Luke said. “Watch the language.”

The Last Jedi: Official Novelisation


To most people, the beeping would have sounded like mechanical gibberish. But Rey was good with technology and had studied the communication patterns of droids. And that droid was especially eloquent—particularly in his choice of insults toward the Teedo.

The Force Awakens - Rey's Story


BB-8, secure in the astromech socket behind the cockpit of Poe’s X-wing, burbled a question. Plugged into the fighter, the droid’s binary-speak was automatically decoded and displayed on the console, but Poe didn’t actually need to read the translation to understand what the droid was asking.

Star Wars: Before the Awakening


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    I laughed at that video. Thank you very much. I would say that the reason some people "speak" and "understand" droid is because those making droids suck in making good user interface. Or it is just cheaper to install "beeper" instead of full blown speakers and language unit. So if you hang around droids too much, you learn it whether you want it or not. Like those hanging around old school dial up modems. Or those guys understanding what motherboard beeps mean.
    – jo1storm
    Commented Aug 3, 2020 at 7:47
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    @jo1storm - It's a deleted scene, but I think it nicely illustrates what Lucas was going for, that understanding droid is rare and speaking it rarer still.
    – Valorum
    Commented Aug 3, 2020 at 7:49
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    In "Rebels", Zeb is surprised that Ezra understands Chopper, so that's another one for the list and another indication that this is not common. Commented Aug 3, 2020 at 7:59
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    @EikePierstorff - Hera also chats with Chopper in "DUME" as does the X-Wing pilot guy from SW: Resistance. I'm not gonna bother adding extra examples from the cartoons and video games. I think I've proven my point
    – Valorum
    Commented Aug 3, 2020 at 8:02
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    Is “droidspeak” even a thing or do different machines have different communication protocols? I mean, those “over six million forms of communication” that C3PO claims to understand must come from somewhere. And didn’t Owen Lars buy C3PO precisely for communicating with some machines on his farm?
    – Holger
    Commented Aug 3, 2020 at 14:14

Most people do not understand Binary (the droid language). It is very clear, for example, that Luke does not understand R2-D2’s speech in The Empire Strikes Back.* There are a number of instances that make clear.

  • When the droids congratulate Luke on his recovery from the Wampa incident, C-3PO first speaks for himself, “Master Luke, Sir, it’s so good to see you fully functional again,” then translates R2’s Binary utterance, “Artoo expresses his relief also.”

  • Even more clearly, when Luke responds to something R2-D2 says when they on Dagobah, Luke makes it clear he does not actually know what his droid is saying: “If you’re saying coming here was a bad idea, I’m beginning to agree with you.”

*Luke can, however, understand R2-D2 when they are in his X-wing, with the ship’s computer translating R2’s messages into a written format, appearing on Luke’s video display.

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