Code Runner

CodeRunner turns your phone into a real coding environment. Write code, hit run, and see real output in seconds — no setup, no terminal, no laptop required. Whether you're learning to code, practicing for interviews, testing a quick idea, or just experimenting on the go, CodeRunner runs real code in 8 popular languages and shows you exactly what it outputs. ▶ RUN REAL CODE Execute Python 3, JavaScript (Node), C, C++, Java, C#, Go, and Rust. Your code runs on real compilers and interpreters — not a simulation — so the output matches what you'd get on a desktop. ⌨ A REAL CODE EDITOR Syntax highlighting, smart indentation, and a clean editor built for mobile. Switch languages instantly while keeping a separate buffer for each one, so you never lose your work. 📤 SEE THE OUTPUT Get clear program output, including errors and runtime messages, right below your code. Perfect for debugging and understanding exactly how your program behaves. 💾 SAVE & REUSE SNIPPETS Save your favorite code snippets and reuse them anytime. Your snippets sync automatically and work offline, so they're always with you across sessions. ✨ WHY CODERUNNER? • 8 languages in one app • Real execution with real output • Fast, distraction-free mobile editor • Save and organize reusable snippets • Works offline for your saved code • Clean, modern, easy-to-use interface Great for: • Students learning programming • Developers testing quick ideas • Interview and coding practice • Anyone who wants to code without a computer Download CodeRunner and start running real code from anywhere.