Ready to Run
Click Run Code or press Ctrl + Enter to execute
Free Online Compiler & Code Runner
Priodemy's Code Runner is a free online compiler that lets you write and run code in 19 programming languages directly in your browser — no installation, no setup, and no sign-up. Choose a language, type your code, add input if you need it, and press Run to see the output instantly. It's perfect for testing snippets, practising for coding interviews, doing homework, or learning a new language on any device, including your phone.
Languages you can run online
- Python
- JavaScript
- TypeScript
- Java
- C
- C++
- C#
- Go
- Rust
- Ruby
- PHP
- Kotlin
- Scala
- Haskell
- Perl
- Bash
- R
- Lua
- SQL
Frequently Asked Questions
Is the online compiler free to use?
Yes. Priodemy’s Code Runner is completely free — write, run, and share code in 19 languages with no sign-up and no limits.
Do I need to install anything to run code?
No. Everything runs in your browser. There is nothing to download or configure — pick a language, write code, and press Run (or Ctrl + Enter).
Which programming languages can I run online?
You can run Python, JavaScript, TypeScript, Java, C, C++, C#, Go, Rust, Ruby, PHP, Kotlin, Scala, Haskell, Perl, Bash, R, Lua, and SQL.
Can I give input (stdin) to my program?
Yes. Open the Standard Input (stdin) panel under the editor and enter your input values — one per line — before running the program.
Can I use this online compiler on my phone?
Yes. The Code Runner works on mobile browsers, so you can write and run Python, Java, or C++ from your phone without any app.
Is this good for coding interviews and practice?
Absolutely. Quickly test snippets, algorithms, and DSA solutions across languages — ideal for interview prep, homework, and learning.