Compiliz — The Best Free Online Compiler to Run Code Instantly
Welcome to Compiliz, the ultimate online compiler where you can run code online for free in multiple programming languages without installation. Whether you’re a beginner learning Python, a Java developer testing with JDK 17, or a competitive programmer looking for the fastest C++ compiler online — Compiliz makes coding simple, fast, and accessible.
Practice with our
Online Compilers
We know the pain of setting up compilers, IDEs, and local environments — especially when you’re just starting out. That’s why
Compiliz provides a free online compiler that works directly in your browser. No downloads. No complicated setup. Just paste your code,
run, and get output instantly.
Works With Your Language
Compliz is a free online compiler supporting over 60 programming languages and databases, including Java,
Python, MySQL, C, C++, NodeJS, JavaScript, Groovy, Jshell, and HTML.
Why Compiliz is the Best Free Online Compiler
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Supports 60+ programming languages including Python, Java, C, C++, JavaScript, Go, PHP, and Rust.
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Browser-based coding means no installation or setup is required.
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Works on desktop, laptop, and mobile devices.
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Secure execution with Docker containers that isolate your code.
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Share code easily using unique URLs — perfect for teachers, students, and developers.
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Ideal for learning, interview prep, and debugging small projects.
Run Multiple Languages in Browser Compiler
Compiliz is not limited to just one or two languages — it’s a powerful online IDE with support for many programming languages. Here’s what you can do:
Python Online Compiler with Input
Run Python scripts easily, test algorithms, and get instant outputs. Practice coding problems just like in an IDE.
Java Online Compiler (JDK 17)
No need to install Java locally. Compile and run instantly with JDK 17 — ideal for OOP practice, interviews, and debugging.
C Online Compiler
Write, debug, and execute C programs in seconds. Output is shown right in the browser.
Fastest C++ Compiler Online
Solve DSA problems or test STL functions with instant output. No installation required.
JavaScript Online Compiler Free
Test JavaScript code directly in the browser — no Node.js setup needed. Perfect for learners and frontend devs.
PHP Online Compiler with Output
Debug and run PHP snippets quickly. Great for testing small chunks of code.
GoLang Online Compiler Free
Experiment with Go routines and concurrency without installing Go locally.
Rust Compiler Online Browser
Learn Rust’s ownership model and memory safety features with no setup required.
Who Can Use Compiliz Online Compiler?
Students
Practice coding homework or assignments without downloading software.
Teachers
Share examples with students using unique URLs.
Interview Candidates
Solve coding questions instantly during mock tests.
Developers
Test snippets, debug code, or prototype quickly.
Competitive Programmers
Use Compiliz for practice sessions and solving algorithm problems online.
Whether you’re preparing for exams or building projects, Compiliz acts as your all-in-one online coding compiler without installation.
How Compiliz Works in 3 Easy Steps
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Choose your language (Python, Java, C++, JavaScript, etc.).
- 2
Paste or write your code into the editor.
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Click Run and get instant results in the output panel. Sharing your code is simple — copy the unique URL.
Why Developers Love Compiliz
No Setup Hassles
Run multiple languages in the browser instantly.
Free & Fast
Best free online compiler for students and professionals alike.
Cross-Platform
Works smoothly on Windows, Mac, Linux, Android, and iOS.
Beginner-Friendly
An online IDE with code execution without complexity.
FAQs
Is Compiliz really a free online compiler?
Yes. Compiliz is 100% free and lets you run code online without downloading or installing anything.
Which programming languages can I use?
You can run Python, Java, C, C++, JavaScript, PHP, Go, Rust, and many more languages.
Can I provide input to my program?
Yes. The Python online compiler with input and other supported languages allow you to test interactive programs.
Do I need to create an account?
No signup is required. You can use Compiliz instantly.
Can I share my code with others?
Yes. After running code, just copy the unique URL and share it with friends, teachers, or recruiters.
Is it safe to run my code here?
Absolutely. Compiliz runs your code inside secure Docker containers that isolate each execution.
Compiliz is more than just another online compiler — it’s a lightweight, secure, and powerful coding platform built for students, educators, and developers.
With support for Python, Java, C, C++, JavaScript, Go, PHP, and Rust, you can solve assignments, prep for interviews, or test scripts anytime, anywhere.