🌀 Scala Playground

Write Scala code below and click Run. Everything runs in your browser — nothing is sent to our servers. No signup, no install, no nonsense.

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Scala can't run inline (yet)

Some languages need a real compiler or runtime that doesn't fit in a browser. But you can run Scala instantly on these free platforms:

Open in Replit ↗ Open in OneCompiler ↗

Sample Scala code:

Scala example

// Scala collection processing
val users = List("Asif", "Rachana", "Chaitra")

val greetings = users
    .filter(_.length > 4)
    .map(name => s"Hello, $name!")

Try these Scala examples

Click any example to load it into the editor:

A note on this playground

Code runs in your browser using open-source engines (Pyodide for Python, native JS for JavaScript, AlaSQL for SQL). Nothing is sent to OneCity's servers. No accounts, no tracking. If you save your work, copy-paste it somewhere else — refreshing the page resets the editor.