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Open the Mac App Store app. Search for “xcode” in the search field, at the top-left. Click on the Xcode app item that appears. Click on the Get or Install buttom at the top-right to download and install Xcode. There are a few things you should know, though. Xcode is a huge app, about 7 gigabyte (GB) in size. Mac users with macOS Mojave and macOS Catalina, and new operating systems in place can now install Command Line Tools from the Xcode IDE without needing to install the entire Xcode package, or opening an Apple developers account.
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