Most summaries stop at XE. The nuance of using the Cloud Free Tier (specifically the Ampere A1 VMs) is often the "secret weapon" for developers who need more power than XE allows without paying a dime.
Oracle Database Free is a surprisingly capable — far more generous than older XE editions. But it’s not a loophole to run production workloads for free. Think of it as Oracle’s taste test: you get the full flavor of enterprise features, served in a small cup.
This is the "classic" free version of Oracle. It is a fully functional database that you download and install on your own machine (Windows, Linux, etc.).
Want specific setup steps for Docker, Windows, or the cloud free tier? Let me know and I’ll write the quick-start guide.
Here is the solid content breakdown of your options.