Browse free open source JavaScript Compilers and projects below. Use the toggles on the left to filter open source JavaScript Compilers by OS, license, language, programming language, and project status.

  • Kinetic Software - Epicor ERP Icon
    Kinetic Software - Epicor ERP

    Discrete, make-to-order and mixed-mode manufacturers who need a global cloud ERP solution

    Grow, thrive, and compete in a global marketplace with Kinetic—an industry-tailored, cognitive ERP that helps you work smarter and stay connected.
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  • Share your screen instantly while on a phone call with CrankWheel for an engaging presentation. Icon
    Share your screen instantly while on a phone call with CrankWheel for an engaging presentation.

    For salespeople and customer service agents who want to compliment their phone calls with visual elements.

    Our 10x simpler screen sharing tool is designed for you if you spend your days on the phone with clients, and need to add a visual presentation to close sales. No more scheduling a follow-up meeting, or teaching them to use a complex tool. Send them a text message or email, and they see your screen in seconds.
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  • 1
    JS/CC LALR(1) Parser Generator

    JS/CC LALR(1) Parser Generator

    A LALR(1) Parser Generator for JavaScript written in JavaScript

    JS/CC is a parser generator for JavaScript/ECMAScript, which is entirely written in ECMAScript itself. It produces LALR(1) parsers with integrated lexical analyzers. JS/CC can run as a website or be invoked from a console, and runs on several platforms.
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  • 2
    JSGold is a GOLD Parser Engine in C++ for generating context-free grammar parsers in javascript.
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  • 3
    This is an Eclipse plugin based on JSMin Javascript minifier. It adds an Ant task called jsminify that copies Javascript files and minifies them while copying, thus leaving the sources intact.
    Downloads: 0 This Week
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  • 4
    This is a JavaScript to Scheme translator written entirely in Scheme. Currently tested only with Guile
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  • World class QA, 100% done-for-you Icon
    World class QA, 100% done-for-you

    For engineering teams in search of a solution to design, manage and maintain E2E tests for their apps

    MuukTest is a test automation service that combines our own proprietary, AI-powered software with expert QA services to help you achieve world class test automation at a fraction of the in-house costs.
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  • 5
    JavaScriptFlash: Compiling JavaScript to SWF JavaScriptFlash is a web-based platform to support the JavaScript web programmers to develop Flash applications in JavaScript. It compiles the JavaScript code following certain rules into a Flash SWF file
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  • 6
    Lebab

    Lebab

    Turn your ES5 code into readable ES6

    Turn your ES5 code into readable ES6. Lebab does the opposite of what Babel does. Lebab transpiles your ES5 code to ES6/ES7. It does exactly the opposite of what Babel does. Convert your old-fashioned code using the lebab cli tool, enabling a specific transformation. The recommended way of using Lebab is to apply one transform at a time, read what exactly the transform does and what are its limitations, apply it to your code and inspect the diff carefully. Transforms can be applied with relatively high confidence. They use pretty straightforward and strict rules for changing the code. The resulting code should be almost 100% equivalent to the original code. Transforms should be applied with caution. They either use heuristics that can't guarantee that the resulting code is equivalent of the original code, or they have significant bugs which can result in breaking your code.
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  • 7
    Multimethods for .NET: Makes multi-methods available to *any* language that targets .NET - C#, VB.NET, JScript.NET, Managed C++ and the rest! Uses .NET dynamic assemblies and shows how to generate dynamic .NET types and IL at runtime.
    Downloads: 0 This Week
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  • 8
    NJS is an independent implementation of the JavaScript language developed by Netscape and standardized by ECMA. It is designed to be re-entrant, extendible, fast, and programmable.
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  • 9
    Narrative JavaScript is a small extension to the JavaScript language that enables blocking capabilities for asynchronous operations. This makes writing asynchronous code sequences easier and increases code readability.
    Downloads: 0 This Week
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  • Cloud-Based Software Licensing - Zentitle by Nalpeiron Icon
    Cloud-Based Software Licensing - Zentitle by Nalpeiron

    The #1 Software Licensing Solution. Release new Software License Models fast with no engineering. Increase software sales and drive up revenues.

    1000’s software companies have used Zentitle to launch new software products fast and control their entitlements easily - many going from startup to IPO on our platform. Our software monetization infrastructure allows you to easily build or
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  • 10
    Online-GCC is an online integrated development environment (IDE) based on PHP technology. Any software developer would be able to design embedder projects for microcontrollers with or without of greater or smaller complexity, using only a Web navigator.
    Downloads: 0 This Week
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  • 11
    Parcel

    Parcel

    The zero configuration build tool for the web

    Parcel combines a great out-of-the-box development experience with a scalable architecture that can take your project from just getting started to a massive production application. Parcel starts with a great development experience, from starting a new project to iterating and debugging, and shipping to production. No more fiddling with configuration, or spending hours to keep up with best practices – it just works! Parcel supports many languages and file types out of the box, from web technologies like HTML, CSS, and JavaScript, to assets like images, fonts, videos, and more. And when you use a file type that isn't included by default, Parcel will automatically install all of the necessary plugins and dev dependencies for you! Parcel includes a development server out of the box. Just run parcel index.html to get started. When you make a change, Parcel automatically updates your code in the browser, no page reload necessary!
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  • 12
    Abacus Technologies Relational XQuery is an XQJ compatible XQuery processor that provides the ability to execute XQuery against both relational and XML data sources. Relational data can be transformed to any XML schema using XQuery's powerful features.
    Downloads: 0 This Week
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  • 13
    Rev = Really Easy Validation - write your form validation code once in this simple and powerful language that generates code for JavaScript, Perl, PHP, and Java. With Rev you get server side and client side data validation with no duplicated code.
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  • 14
    RockScript is the world's smallest Java-based JavaScript interpreter, runs smoothly in any J2ME phones. The binary size of core engine including native objects/methods is less than 25K (obfuscated & JAR'ed). It can be integrated into any J2ME apps.
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  • 15
    Rollup

    Rollup

    A module bundler for JavaScript

    Rollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. This will eventually be possible natively everywhere, but Rollup lets you do it today. Rollup can be used either through a command line interface with an optional configuration file, or else through its JavaScript API. Rollup allows you to write your code using the new module system, and will then compile it back down to existing supported formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to write future-proof code.
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  • 16
    Picture Gallery viewable with HTML web browsers. All dynamics is implemented at client-side in JavaScript. This approach is useful when the server side is able to provide only static contents, or if the gallery is stored on CDROM or other media.
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  • 17
    A C and C++ Library + a compiler to create Adobe Flash SWF movies up to version 9 (v1.8.1). Supports nearly all the tags, includes an ActionScript compiler. Detailed docs and other tools: convert fonts to Flash, decompile Flash, jpg2swf. LASTEST IS 1.8.4
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  • 18
    Silis OS is a online based operating system which will allow users to access their files and programs from any where in the world.
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  • 19
    Smee allows ECMAScript to be used as an extension language for Smalltalk applications.
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  • 20
    Smith is an open source, cross-platform ColdFusion® engine, written entirely in Java. Running on top of Java Runtime Environment and Java Servlet Container, it can be deployed virtually on any operating system and work with any web server.
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  • 21
    SuperClass is a JavaScript pre-processor/interpreter object, designed to facilitate class-based OOP in JavaScript. NOTE: Project is closed. Replaced by: http://sourceforge.net/projects/jsclass
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  • 22
    SuperWikia Alpha Codebase 1.1

    SuperWikia Alpha Codebase 1.1

    SuperWikia: The Runtime/Realtime Environment for Codesmiths

    The SuperWikia Alpha 1.0 application is an IDE specifically developed for 3D and graphic content. Its built upon the Unity foundation and incorporates various libraries from Komodo IDE, wxDevC++, CodeBlocks, QT Creator and other applications. Its Realtime purpose is an IDE (codesmith developer access), its Runtime (U/I) function is as a space building simulator, operating in conjunction with the SuperWikia 'Navigator' user interface to simulate space economics and fleet operations. It allows users (known as 'data fleet navigators' or DFN's) to compete in tourneys over vast regions known as 'expanses' and to create envoys that manage onsite and offsite stations. Using additional SuperWikia components, users may enhance their experience with plugins and 'dataplates' that help build the Runtime environment. Codesmiths (SuperWikia Alpha developers) can also build on top of the codebase using 'transcribes', acronym/algebraic encodes that differentiate codesmith works.
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  • 23
    Traceur

    Traceur

    Traceur is a JavaScript.next-to-JavaScript-of-today compiler

    Traceur is a JavaScript.next-to-JavaScript-of-today compiler that allows you to use features from the future today. Traceur supports ES6 as well as some experimental ES.next features. Traceur's goal is to inform the design of new JavaScript features which are only valuable if they allow you to write better code. Traceur allows you to try out new and proposed language features today, helping you say what you mean in your code while informing the standards process. JavaScript's evolution needs your input. Try out the new language features. Tell us how they work for you and what's still causing you to use more boilerplate and "design patterns" than you prefer. You can use some language features right now and even try it out in your browser here. Just type in some code and see what Traceur produces.
    Downloads: 0 This Week
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  • 24
    Try Scheme is a Scheme interpreter that runs in your web browser. No installation. Just click and go. Full support for continuations and syntax-rules macros!
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  • 25
    V Programming Language

    V Programming Language

    Simple, fast, safe, compiled language for developing software

    Simple language for building maintainable programs. You can learn the entire language by going through the documentation over a weekend, and in most cases, there's only one way to do something. This results in simple, readable, and maintainable code. Despite being simple, V gives a lot of power to the developer and can be used in pretty much every field, including systems programming, webdev, gamedev, GUI, mobile, science, embedded, tooling, etc. V avoids doing unnecessary allocations in the first place by using value types, and string buffers, promoting a simple abstraction-free code style. Most objects (~90-100%) are freed by V's auto-free engine: the compiler inserts necessary free calls automatically during compilation. A remaining small percentage of objects is freed via GC. The developer doesn't need to change anything in their code. "It just works", like in Python, Go, or Java, except there's no heavy GC tracing everything or expensive RC for each object.
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