Online Scala Compiler
Scala combines functional and object-oriented programming, running on the JVM. Run Scala code instantly in your browser.
// Online Scala compiler
// Write Scala code in this online editor and run it
object Hello {
def main(args: Array[String]): Unit = {
println("Hello, Tutorsbot!")
}
}
Scala combines functional and object-oriented programming, running on the JVM. Run Scala code instantly in your browser.
What is Scala?
Scala combines object-oriented and functional programming on the JVM, with strong static typing driven by a Hindley–Milner-flavored type inference. It compiles to the same bytecode as Java, so it interoperates seamlessly with the entire Java ecosystem — every Java library is a Scala library.
Why run Scala in the browser
Installing sbt + a JDK + an IDE-aware editor is a ten-minute affair for the first build, then thirty-second increments thereafter. A browser sandbox is faster for one-off expressions, learning FP concepts (immutable data, pattern matching, for-comprehensions), or testing a snippet before pasting it into a build.
Common Scala tasks
Data pipelines (Spark), backend services (Akka HTTP, http4s, Play Framework), functional libraries (Cats, ZIO), REPL-driven development, and gradual migrations from Java codebases. The sandbox runs Scala 3.2.2.
Getting started with Scala 3.2.2
Paste a snippet — object H { def main(a: Array[String]): Unit = println('hi') } — hit Run, see stdout. The highlighter recognises Scala idioms: pattern matching with case, for-comprehensions with yield, the Option/Some/None pattern, and implicit conversions.
Why use the Scala online compiler?
- Scala 3.2.2
- JVM-based
- Functional programming
- Object-oriented
Frequently Asked Questions
- Is the Scala online compiler free?
- Yes — Tutorsbot's Scala compiler is completely free. No account required, no installation, and no usage limits.
- Do I need to install Scala?
- No. The Scala compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
- Is my Scala code saved between sessions?
- Yes — your code autosaves to your browser's local storage so you can resume where you left off. You can also generate a shareable URL.
- Can I share Scala code with others?
- Yes. Click the Share button to copy a URL that encodes your script. Anyone with the link can open and run it instantly — no account required on their end.
- Is the Scala compiler safe to use?
- Absolutely. Every program runs in an isolated sandbox. Your local system is never exposed to the executed code, and nothing is persisted after the execution window.