These are the programming languages Facebook uses

5 min readApr 15, 2021

Welcome back! The other day we talked about the programming languages that Google uses, here’s that article in case you missed it:

These are the programming languages Google uses

Welcome back! When discovering which programming languages to learn, it maybe best to work backwards and find out which…

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Now, let’s talk about what programming languages Facebook uses!

First off

As always, if you have any suggestions, thoughts or just want to connect, feel free to contact / follow me on Twitter! Also, below is a link to some of my favorite resources for learning programming, Python, R, Data Science, etc.

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Let’s begin!

The Languages

Let me go ahead and just tell you exactly what the languages are without wasting your time, i’ll explain them later. The languages that Facebook uses in house are: Javascript, React & Flow for their front end, their backend is a little bit more complex: Hack, PHP, C++, Java, ERLang, D, XHP and Haskell. How do I know Facebook uses these languages? They’re on Wikipedia: