Go to the Apple Developer Downloads page. You will need a free Apple ID. Search: Use the search bar to look for "Xcode 3". Select Your Version:
The most effective way to run Xcode 3 today is via a Virtual Machine (using VMware or Parallels) running a legacy version of Mac OS X. xcode 3 download
Are you trying to install this on or are you setting up a virtual machine for legacy dev work? Go to the Apple Developer Downloads page
While modern developers use Xcode 15 or 16, there are still valid reasons to hunt down this version—usually to maintain ancient legacy code or to breathe life into "vintage" Mac hardware. Where to Find the Xcode 3 Download Select Your Version: The most effective way to
It might seem counterintuitive to use software from 2010, but here are the three main use cases:
These files are usually several gigabytes, so ensure you have a stable connection. Why People Still Use Xcode 3
If you have an old PowerPC G4/G5 or an early Intel Mac that can't run anything newer than Snow Leopard, Xcode 3 is your ceiling.