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OCaml vs Scala: catalog facts
OCaml	Scala
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Strong type system that catches errors early Native compiler plus interactive toplevel	Combines functional and object-oriented styles Runs on the JVM with access to Java libraries
Smaller library ecosystem than mainstream languages Functional style takes time to learn	Migrating from Scala 2 to Scala 3 can take work Steeper learning curve than many JVM languages
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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