Py Studio is a browser-based code editor and online compiler for learning, writing, and testing programs in Python, JavaScript, C, C++, C#, and Java. Choose a language from the editor's left-hand list, start with a built-in example, and run your code in the output panel.
The editor uses Monaco for syntax highlighting and code suggestions. Each language
has its own editor buffer, and source code can be downloaded with a matching file
extension such as .py, .js, .c, .cpp,
.cs, or .java.
Write Python programs and run them in the browser with Pyodide. Common data-science packages, including NumPy and Pandas, are available in the Python runtime. The browser loads its editor and runtime assets online; Python code runs in the browser after those assets are available.
Test JavaScript in a browser worker and view console.log() output in the
console panel. JavaScript execution happens in the browser rather than through the
Wandbox compiler service.
Create and run C programs in the editor. C source is sent to Wandbox for compilation and execution, and compiler messages and program output appear in the output panel.
Write C++ source for console programs and compile it through Wandbox. The online editor displays compiler messages and program output.
Try C# console programs in the browser editor. C# compilation and execution use Wandbox, so this language mode requires an internet connection and sends the source code to that service.
Edit Java programs and run them with the Wandbox Java compiler. Java source is sent to Wandbox for compilation and execution; results are returned to the editor's output panel.
To try an example, choose a language, select an example from the Examples menu, and press Run. Use the download control to save the current source file.
Python and JavaScript execute in the browser after the required page and runtime assets load. C, C++, C#, and Java are compiled by Wandbox: selecting Run sends that source code to Wandbox over the internet. Do not submit passwords, API keys, personal information, or other confidential code. All language modes need an internet connection to open the editor; the compiled-language modes also need a connection to Wandbox each time they run.
Py Studio is designed for students practicing programming fundamentals, beginners comparing language syntax, and developers who want a quick browser-based place to test small code examples. The language-specific starter programs make it easy to compare loops, variables, and console output across Python, JavaScript, C, C++, C#, and Java.
The editor supports Python, JavaScript, C, C++, C#, and Java.
No. The page loads editor and runtime assets online. Python and JavaScript execute in the browser after those assets load. C, C++, C#, and Java require an internet connection because their source is compiled and run by Wandbox.
Python and JavaScript run in the browser. C, C++, C#, and Java source is sent to Wandbox when you run it. Avoid submitting confidential code or secrets.
Yes. The download uses a language-specific filename and extension: .py,
.js, .c, .cpp, .cs, or .java.
Py Studio uses Monaco Editor and Pyodide for the editor and browser-based Python runtime. Python is a trademark of the Python Software Foundation; Py Studio is an independent product and is not affiliated with or endorsed by the Python Software Foundation.