The best Compiler alternative to Java is Kotlin, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Java and ten of them are Compilers so hopefully you can find a suitable replacement. Other interesting Compiler alternatives to Java are Scala, Julia, Nim (programming language) and Swift (programming language).
Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version of its standard library depends on the Java Class Library, but type inference allows its syntax to be...
Scala is a modern multi-paradigm programming language based on the Java Virtual Machine (JVM) designed to express common programming patterns in a concise, elegant, and type-safe way.
Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments. It provides a sophisticated compiler, distributed parallel execution, numerical accuracy, and an...
Nim is a statically typed, imperative programming language with a powerful macro system that tries to give the programmer ultimate power without compromises on runtime efficiency.
Open-source programming language for developing iOS, macOS, watchOS, tvOS, and visionOS apps, featuring safety, speed, type inference, generics, native-code compilation, protocol-oriented design, memory management, Playgrounds, package manager, and Objective-C interoperability.
V is a statically typed compiled programming language designed for building maintainable software.
Programming language with Ruby-like syntax that compiles to efficient native code.
Clojure is a dynamic programming language that targets the Java Virtual Machine (and the CLR ). It is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for...
GDScript is a high-level, dynamically typed programming language used to create content. It uses a syntax similar to Python.
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It's basically the successor to Java.