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OpenJDK vs Oracle JDK: catalog facts
OpenJDK	Oracle JDK
Best for: Developers who need a standard JDK to build and run Java applications	Best for: Java developers who want Oracle's official JDK builds
Free Free under the GPL; Oracle also sells a commercially licensed JDK built from the same code.	Free + paid options Downloads are available from Oracle, with paid Java SE subscriptions for commercial support.
Windows, macOS, Linux, Command line	Windows, Command line
Reference implementation of the Java Platform Free production-ready builds for three desktop platforms All 3 strengths for OpenJDK Reference implementation of the Java Platform Free production-ready builds for three desktop platforms Open development with public source and proposals	Official Java builds from Oracle, including long-term support releases Full toolchain: compiler, runtime and command-line tools All 3 strengths for Oracle JDK Official Java builds from Oracle, including long-term support releases Full toolchain: compiler, runtime and command-line tools Commercial support available
Oracle's OpenJDK builds are only updated for a short time per release Older versions such as JDK 17 need builds from other vendors for updates	Oracle's licensing terms are more restrictive than OpenJDK builds Commercial support requires a paid subscription
Downloadable app	Downloadable app
Open source	Not open source
License: GPL-2.0 with Classpath Exception	License not stated
No account needed	Not stated if an account is needed
Offline features available	Offline features available
Official website Full listing and sources Sources for OpenJDK openjdk.org Catalog checked October 1, 2026	Official website Full listing and sources Sources for Oracle JDK oracle.com/java Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.