Online Clojure Compiler
Clojure is a modern, dynamic Lisp dialect for the JVM. Run Clojure code instantly in your browser.
;; Online Clojure compiler
;; Write Clojure code in this online editor and run it
(defn greet [name]
(println (str "Hello, " name "!")))
(greet "Tutorsbot")
Clojure is a modern, dynamic Lisp dialect for the JVM. Run Clojure code instantly in your browser.
What is Clojure?
Clojure is a modern Lisp dialect designed by Rich Hickey that targets the JVM, JavaScript (via ClojureScript), and the .NET CLR. It emphasises immutable persistent data structures and software transactional memory, making it a popular choice for data-heavy services and stateful systems that benefit from a functional style.
Why run Clojure in the browser
Installing the JDK + the Clojure CLI tools + Leiningen is a five-minute affair before any code runs. A browser sandbox is faster for REPL-style exploration, teaching the syntax (parentheses are loud until they aren't), or trying a transducer pipeline without warming the JVM.
Common Clojure tasks
Web services (Ring, Compojure, Reitit), data pipelines with transducers and core.async, Datomic and other immutable databases, Babashka for scripting native binaries, and ClojureScript front-ends with Reagent or Re-frame. The sandbox runs Clojure 1.10.3.
Getting started with Clojure 1.10.3
Paste a snippet — (defn greet [n] (str "hi, " n)) (println (greet "Tutorsbot")) — hit Run, see stdout. The highlighter understands Clojure's S-expressions, the defn/let/if forms, threading macros -> and ->>, and the keywords like :name that pepper idiomatic Clojure.
Why use the Clojure online compiler?
- Clojure 1.10.3
- Lisp dialect
- JVM-based
- Functional programming
Frequently Asked Questions
- Is the Clojure online compiler free?
- Yes — Tutorsbot's Clojure compiler is completely free. No account required, no installation, and no usage limits.
- Do I need to install Clojure?
- No. The Clojure compiler runs entirely in your browser. No runtime, no SDK, no PATH configuration. Open the page and start coding.
- Is my Clojure 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 Clojure 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 Clojure 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.