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Programiz
programiz.com β€Ί javascript β€Ί online-compiler
Online JavaScript Compiler (Editor) - Programiz
Write and run your JavaScript code using our online compiler. Enjoy additional features like code sharing, dark mode, and support for multiple programming languages.
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OneCompiler
onecompiler.com β€Ί javascript
JavaScript Online Compiler & Interpreter
OneCompiler's JavaScript online editor helps you to write, compile, debug and run JavaScript code online
Discussions

Online Javascript compiler
JavaScript is (mainly) interpreted, and not compiled. You could take a look at simple online editors for inspiration. https://js.do/ Is simple and you could run it locally. If you want to achieve compilation in the browser, you'd want WebAssembly More on reddit.com
🌐 r/learnjavascript
13
6
February 19, 2023
What is the best code editor/runner for Javascript [beginner]?
You dont need "the best code editor". You need the basic understanding of how your code is executed. Sure, some editors might give you easy ways to start a live web server or run your script with node or w/e, but that shouldn't be imporant in this case. Create an index.html and main.js empty files. You can open these files in any editor, even notepad (to prove a point) In your HTML file have the More on reddit.com
🌐 r/learnjavascript
16
2
August 7, 2025
People also ask

What is a JavaScript compiler?
A JavaScript compiler transforms your JavaScript code into optimized, executable code. Unlike traditional compilers that produce machine code, JS compilers like PlayCode bundle your code, resolve imports, and transpile modern syntax (ES2026, TypeScript, JSX) into browser-compatible JavaScript that runs instantly.
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playcode.io
playcode.io β€Ί javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
How fast is the online JavaScript compiler?
PlayCode's compiler is optimized for speed. Initial compilation takes 100-500ms depending on project size. Incremental builds (when you edit code) complete in 20-50ms. That's often faster than running a local Node.js bundler because everything runs in memory with no disk I/O.
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playcode.io
playcode.io β€Ί javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
Does the JavaScript compiler work offline?
PlayCode works offline once loaded. The compiler runs entirely in your browser using WebAssembly, so you can keep coding without an internet connection. Your code is saved locally and syncs when you're back online.
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playcode.io
playcode.io β€Ί javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
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Playcode
playcode.io β€Ί javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
16 hours ago - Our online JS editor supports ES2026, TypeScript, JSX, and TSX right out of the box. Whether you're testing a quick code snippet, debugging an algorithm, or prototyping a full application, PlayCode's JavaScript compiler gives you instant results.
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CodePen
codepen.io
CodePen: Online Code Editor and Front End Web Developer Community
Build, share, and learn JavaScript, CSS, and HTML with our online code editor.
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JSFiddle
jsfiddle.net
JSFiddle - Code Playground
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle.
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CodeChef
codechef.com β€Ί javascript-online-compiler
Online JavaScript Compiler
Welcome to our AI-powered online JavaScript interpreter, the perfect platform to run and test your JavaScript code efficiently. Our tool makes coding easy for developers of any skill level, whether you're a beginner or experienced.
Find elsewhere
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AlmaBetter
almabetter.com β€Ί online-compiler β€Ί javascript
Online JavaScript Compiler (Editor)
An Online JavaScript Compiler is a web-based tool that allows users to write, test, and execute JavaScript code directly in a browser environment.
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NextLeap
nextleap.app β€Ί online-compiler β€Ί javascript-programming
NextLeap - Online Javascript Compiler
The user-friendly online compiler platform that enables you to execute Javascript programs effortlessly and at no cost. The editor also supports taking input from the user and standard libraries. Dive into the world of Javascript development with our complimentary, easy-to-use tool.
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OnlineGDB
onlinegdb.com β€Ί online_javascript_rhino_interpreter
Online Javascript(Rhino) Interpreter - online editor
OnlineGDB is online IDE with javascript interpreter. Quick and easy way to run javascript program online.
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Replit
replit.com β€Ί languages β€Ί nodejs
Node.js Online Compiler & Interpreter - Replit
Write and run Node.js code using our Node.js online compiler & interpreter. You can build, share, and host applications right from your browser!
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MyCompiler
mycompiler.io β€Ί online-javascript-editor
Online JavaScript Editor - myCompiler
Online JavaScript Editor - Edit, Compile and Run your JS code with myCompiler JavaScript playground. Simple and easy to use IDE to edit, run and test your JavaScript code.
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p5.js
editor.p5js.org
p5.js Web Editor
A web editor for p5.js, a JavaScript library with the goal of making coding accessible to artists, designers, educators, and beginners.
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Python Tutor
pythontutor.com β€Ί javascript.html
Online JavaScript Compiler, Visual Debugger, and AI Tutor - Learn JavaScript programming by visualizing code
Online JavaScript compiler, visual debugger, and AI tutor - the only tool that lets you visually debug your JavaScript code step-by-step (also debug Python, Java, C, and C++ code)
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WsCube Tech
wscubetech.com β€Ί resources β€Ί javascript β€Ί compiler
Online JavaScript Compiler | Free JS Code Editor
Use our online JavaScript compiler to write, run, and test JS code. No setup required, instant output, and supports all major JS libraries.
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Reddit
reddit.com β€Ί r/learnjavascript β€Ί online javascript compiler
r/learnjavascript on Reddit: Online Javascript compiler
February 19, 2023 -

How can I create an online Javascript compiler to compile and execute Javascript real-time online? I'm building an interactive Javascript editor using Monaco editor but need ideas for compiler and real time output. Some ideas I have is an express app with babel compiler and use vm2 to run the code? Any more sophisticated ideas?

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Compiliz
compiliz.com β€Ί online-javascript-compiler
Free Online JavaScript Compiler - Run JS Code Online
Write, compile, and run JavaScript code instantly in your browser. Perfect for web development and frontend programming.
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Coding Shuttle
codingshuttle.com β€Ί compilers β€Ί javascript
Online Javascript Compiler | Coding Shuttle
An Online Javascript Compiler is a web-based application that enables users to write, edit, and run Javascript code directly from their web browsers without any local installations or configurations.
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Adaface
adaface.com β€Ί home β€Ί adaface | free online compilers β€Ί javascript compiler
Online JavaScript Compiler - Write, Compile, and Run JS Code
May 22, 2025 - Use the online JavaScript Compiler to write, compile, and run JavaScript code instantly. Perfect for learning, testing, and debugging your JS code. Supports standard libraries and various input types.
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TutorialsPoint
tutorialspoint.com β€Ί compilers β€Ί online-javascript-editor.htm
Online JavaScript Editor & IDE - Write, Run & Debug JavaScript Code
Free online JavaScript Editor and IDE. Write, compile, run and debug JavaScript code online. No installation required. Supports debugging, code sharing, and multiple examples.
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RunJS
runjs.app β€Ί play
RunJS - JavaScript Playground | Run JavaScript Online
An easy-to-use online JavaScript playground with live feedback. Write and run JavaScript instantly. Great for learning and prototyping.