Programiz
programiz.com › javascript › 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.
OneCompiler
onecompiler.com › javascript
JavaScript Online Compiler & Interpreter
OneCompiler's JavaScript online editor helps you to write, compile, debug and run JavaScript code online
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
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February 19, 2023[AskJS] I wonder why there is no javascript compiler?
What about node do you feel is slow? I run enterprise and SaaS applications using node all the time. If you understand how javascript works and functions...then you'd understand why node runs the way that it does. More on reddit.com
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July 30, 2021Parcel 2 beta 3: 10× faster JavaScript compiler written in Rust
I like that people started using Rust more, seemingly throwing it at anything anecdotally makes it “better/faster”. However I am wondering how much of “faster” is really down to Rusts safety, better reasoning enforcement and in general the fact that something got rewritten meaning stuff has improved overall — not exclusively thanks to Rust, but to the fact that refactored code could’ve just been improved a lot and made more efficient. More on reddit.com
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March 31, 2021Boa: a JavaScript interpreter and JIT compiler written in Rust
I don't actually see a JIT in the repo. Looks like a conventional interpreter.
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December 3, 2015What 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.
playcode.io
playcode.io › 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.
playcode.io
playcode.io › 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.
playcode.io
playcode.io › javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
Videos
25:17
JavaScript might get compiler hints? - YouTube
05:25
Online Compiler for JavaScript | Chapter 17 | Lightning Web ...
01:21:25
Let's prototype a JavaScript JIT compiler! - YouTube
r/aipromptprogramming on Reddit: 🛠️ Built an advanced offline ...
19:42
JavaScript Stories | Compiler vs Interpreters - YouTube
Playcode
playcode.io › javascript-compiler
JavaScript Compiler - AI-Powered JS Compiler Online | Free
1 day ago - The compiler resolves imports, bundles modules, and transpiles modern syntax in milliseconds, giving you instant feedback as you code. PlayCode lets you run JavaScript online without any setup. Just open your browser, write your code, and execute it instantly. No need to install Node.js, configure webpack, or set up a development environment.
NextLeap
nextleap.app › online-compiler › 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.
Python Tutor
pythontutor.com › 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)
Visual Studio Code
code.visualstudio.com › docs › languages › javascript
JavaScript in Visual Studio Code
November 3, 2021 - If your workspace contains more than one project context, such as front-end and back-end JavaScript code. For multi-project workspaces, create a jsconfig.json at the root folder of each project. You are using the TypeScript compiler to down-level ...
WsCube Tech
wscubetech.com › resources › javascript › 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.
RunJS
runjs.app › 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.
CodeChef
codechef.com › 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.
Reddit
reddit.com › r/learnjavascript › 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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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
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This is something I tried a while ago: https://2ality.com/2019/10/multi-module-eval.html
Hostinger
hostinger.com › home › 8 best javascript compilers to use
Top 10 JavaScript compilers for modern web development
March 18, 2025 - Compatible with any JavaScript runtime environment or web browser compilers. CoffeeScript code is easily maintainable because of its concise and easily readable syntax.& ... Requires JavaScript to learn due to their similar logic. Declining in popularity, as modern JS has adopted some similar features, so there are fewer resources available.
JSFiddle
jsfiddle.net
JSFiddle - Code Playground
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle.
W3Schools
w3schools.com › js › js_editor.asp
W3Schools.com
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
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.
Replit
replit.com › languages › 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!
Reddit
reddit.com › r/javascript › [askjs] i wonder why there is no javascript compiler?
r/javascript on Reddit: [AskJS] I wonder why there is no javascript compiler?
July 30, 2021 -
since javascript is such a popular language,why there has no js compiler that can beat node.I realy like
js syntax,but node is really slow
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What about node do you feel is slow? I run enterprise and SaaS applications using node all the time. If you understand how javascript works and functions...then you'd understand why node runs the way that it does.
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Modern runtimes work - more or less - by compiling as much JS as they can to native code, so I can't imagine AOT compiler would give that much benefits. Dynamic nature of the language has some cost, unfortunately.
JS Bin
jsbin.com
JS Bin
A live pastebin for HTML, CSS & JavaScript and a range of processors, including SCSS, CoffeeScript, Jade and more...
Coding Shuttle
codingshuttle.com › compilers › 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.
Kotlin
kotlinlang.org › docs › js-ir-compiler.html
Kotlin/JS compiler features | Kotlin Documentation
September 4, 2025 - The Kotlin/JS compiler provides the incremental compilation mode for development binaries that speeds up the development process. In this mode, the compiler caches the results of compileDevelopmentExecutableKotlinJs Gradle task on the module level.
Scaler
scaler.com › topics › javascript › online-javascript-compiler
Online JavaScript Compiler (Editor)
Our user-friendly JavaScript Online Compiler enables you to both write and execute JavaScript code directly on the web. Save and share your codes with the latest version of online JavaScript compiler.