Is Tutorsbot online compiler free to use?

Yes, Tutorsbot online compiler is completely free. No account, no installation, and no usage limits.

Which programming languages are supported?

We support 33+ languages including Python, JavaScript, TypeScript, Java, C++, C, C#, Go, Rust, PHP, Ruby, Kotlin, Swift, SQL, plus Lua, Dart, Scala, Julia, Haskell, Elixir, Clojure, Perl, Nim, Zig, Prolog, and more.

Is my code saved between sessions?

Your code is automatically saved to your browser's localStorage so you can resume where you left off. You can also generate a shareable URL.

Can I share my code with others?

Yes. Click the Share button to copy a URL that encodes your code. Anyone with the link can open and run it instantly.

Is the compiler safe to use?

Absolutely. Every program runs in an isolated sandboxed container. Your local system is never exposed to the executed code.

Online Haskell Compiler

Haskell is a pure functional programming language with strong typing. Run Haskell code instantly in your browser.

Haskell 9.0

main

-- Online Haskell compiler
-- Write Haskell code in this online editor and run it

main :: IO ()
main = putStrLn "Hello, Tutorsbot!"

Haskell is a pure functional programming language with strong typing. Run Haskell code instantly in your browser.

What is Haskell?

Haskell is a statically-typed, purely-functional programming language with non-strict (lazy) evaluation. The reference compiler GHC produces fast native binaries despite the language forbidding mutation in the source — purity lets the runtime parallelise and memoise aggressively. Haskell is the canonical language for studying type theory, monads, and lazy evaluation.

Why run Haskell in the browser

GHC takes five-to-ten minutes to install the first time, and Stack or Cabal add their own learning curves on top. A browser sandbox removes both barriers for coursework, interview preparation (Haskell questions appear at firms like Galois and Standard Chartered), or pure curiosity about how a monad actually works.

Common Haskell tasks

Compiler construction (Alex + Happy), domain-specific languages (the EDSLs in Pandoc, Shake, and Cryptol), financial modelling libraries at firms like Standard Chartered, formal verification research, parallel code via the par combinator, and parser combinators (Parsec, megaparsec). The sandbox runs GHC 9.0.

Getting started with Haskell 9.0

Paste a snippet — main = putStrLn "hi, Tutorsbot" — hit Run, see stdout. The highlighter handles Haskell's layout rule (indentation-driven syntax), list syntax [a], tuple syntax (a, b), type signatures (:: String -> String), and do-notation for monadic sequencing.

Why use the Haskell online compiler?

Haskell 9.0
Pure functional
Strong typing
Lazy evaluation

Frequently Asked Questions

Is the Haskell online compiler free?: Yes — Tutorsbot's Haskell compiler is completely free. No account required, no installation, and no usage limits.
Do I need to install Haskell?: No. The Haskell compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
Is my Haskell code saved between sessions?: Yes — your code autosaves to your browser's local storage so you can resume where you left off. You can also generate a shareable URL.
Can I share Haskell code with others?: Yes. Click the Share button to copy a URL that encodes your script. Anyone with the link can open and run it instantly — no account required on their end.
Is the Haskell compiler safe to use?: Absolutely. Every program runs in an isolated sandbox. Your local system is never exposed to the executed code, and nothing is persisted after the execution window.