Welcome to HCODX Online Compiler
Quick Start:
Ctrl+Enter Run code
Ctrl+S Save / Download
Ctrl+L Clear output
Select a language and start coding.
Compile and run Python code online instantly with HCODX. Our free cloud-based Python compiler supports real-time execution, standard input, syntax highlighting, and code download. No installation or configuration required. Start coding in Python now.
Run Python instantly without installing any IDEs or configuring environments. Our cloud-based Python handles libraries, runtimes, and dependencies automatically so you can focus on writing code.
Whether you are studying algorithms in Python, practicing data structures in Python, or exploring functional programming, our tool provides real-time stdout/stderr feedback with interactive standard input support.
HCODX is a free online compiler and code runner: write code in your browser, execute it on a cloud sandbox, and interact with your program through a live terminal. Students use it for coursework and interview practice; developers use it to test snippets in 85+ languages without setting up a local environment.
Python is the most-taught programming language in US, UK, Canadian, and Australian universities, and the #1 language for data science, machine learning, automation, and coding interviews. This online compiler runs Python 3.12 on a cloud sandbox with a real interactive terminal: your program starts immediately, output streams live, and when it calls input() you type the answer right in the terminal — exactly like running python3 locally, with nothing to install.
name = input("Enter your name: ")
age = int(input("Enter your age: "))
print(f"Hi {name}! You'll turn {age + 10} in a decade.")
# Each prompt appears and waits for YOUR answer
# while the program is running — no pre-filled input box.Practice LeetCode and HackerRank problems with real stdin, test snippets from Stack Overflow before dropping them into a project, run homework for CS101 or AP Computer Science without installing Anaconda, prototype data-wrangling logic, or share a runnable example with a classmate via a link. The standard library is fully available — math, itertools, collections, re, json, and datetime all work out of the box. HCODX is a free online Python editor, runner and interpreter — an IDE-grade compiler and playground to write and run code online, execute code with live output and live preview, no downloads or web server required.
Yes — and interactively. Unlike most online compilers that make you paste all input into a box before running, HCODX opens a live terminal session: the program runs, prints its prompt, and waits for you to type. Loops with multiple input() calls work naturally.
Python 3.12 (CPython). PyPy and legacy Python 2.7 are available as separate runtimes in the sidebar if you need to test version-specific behavior.
The sandbox ships the full standard library but doesn't run pip install. For pure-stdlib work — algorithms, interview prep, scripting — everything works. For NumPy or pandas experiments you'll want a local environment or a notebook service.
Your current code will be replaced with the default sample. This cannot be undone — download your code first if you want to keep it.
You have unsaved changes. Do you want to save your code before continuing?