Online Compiler
Online compiler for Python, Java, C++ and 17 more languages
The Webhise online compiler lets you write, compile and run code in 20 programming languages straight from your browser, with nothing to install. Type your program, add standard input, press Run (or Ctrl + Enter) and see the output in seconds. When something breaks, a built-in AI assistant can explain your code, help you debug an error or suggest a more efficient version.
Key features
20 languages
Python, Java, C, C++, JavaScript, TypeScript, C#, Go, Rust, Kotlin, Swift, PHP, Ruby, SQL, R, Perl, Haskell, Lua, Bash and Assembly.
AI code assistant
Explain, Debug and Optimise actions that read your code (and the error output) and reply in plain language.
Custom input
Pass standard input to your program, just like an online judge or a coding assessment.
Share by link
Generate a link that opens the compiler with your code and language already loaded.
How it works
- 1
Pick a language
Choose from 20 languages. Each one opens with starter code so you can run it straight away.
- 2
Write your code and input
Use the full code editor with syntax highlighting and adjustable font size, and add anything your program reads from standard input.
- 3
Run and read the output
Press Run or Ctrl + Enter. Output and errors appear next to the editor.
- 4
Ask the AI when you are stuck
Use Explain to understand a program, Debug to find out why it fails, or Optimise to improve it.
Who the online compiler is for
Students use it to try out examples from class, practise data structures and algorithms, and rehearse for placement coding rounds without setting up compilers on a college or personal laptop. Working professionals use it to test a snippet in a language they do not have installed, or to check how something behaves before putting it in production code.
Supported programming languages
- General purpose: Python, Java, C, C++, C#, Go, Rust, Kotlin, Swift
- Web and scripting: JavaScript, TypeScript, PHP, Ruby, Perl, Lua, Bash
- Data and others: SQL, R, Haskell, Assembly
Why an AI assistant inside a compiler helps
Most online compilers stop at "it ran" or "it failed". On Webhise, the same screen can tell you why. Debug reads your code together with the error output, so you learn what went wrong instead of just copying a fix. Explain walks through what each part of a program does, which is useful when you are reading someone else's solution. Optimise suggests a cleaner or faster version you can compare against your own.
Frequently asked questions
- What is an online compiler?
- An online compiler is a web tool that compiles and runs your code on a server and shows the output in your browser, so you can program in languages like Python, Java or C++ without installing anything on your computer.
- Which languages does the Webhise online compiler support?
- Twenty: Python, Java, C, C++, JavaScript, TypeScript, C#, Go, Rust, Kotlin, Swift, PHP, Ruby, SQL, R, Perl, Haskell, Lua, Bash and Assembly.
- Can I give input to my program?
- Yes. Type anything your program reads from standard input into the input box before you press Run, the same way online judges and company coding assessments supply input.
- What can the AI assistant do?
- It has three actions. Explain describes what your code does, Debug uses your code and its error output to find the problem, and Optimise suggests a more efficient or readable version.
- Is Webhise free?
- No. Webhise is a paid platform. Individual plans start at ₹149 per month, with 3-month, 6-month and annual plans that cost less per month (the annual plan is ₹1,499). Every plan includes all student features. Prices exclude GST. Colleges and companies can ask for a custom quote.
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