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

  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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  • 99.99% Uptime for MySQL and PostgreSQL Databases Icon
    99.99% Uptime for MySQL and PostgreSQL Databases

    Sub-second maintenance. 2x read/write performance. Built-in vector search for AI apps.

    Cloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
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  • 1
    Node-RED

    Node-RED

    Low-code programming for event-driven applications

    Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. It provides a browser-based editor that makes it easy to wire together flows using the wide range of nodes in the palette that can be deployed to its runtime in a single-click. Node-RED provides a browser-based flow editor that makes it easy to wire together flows using the wide range of nodes in the palette. Flows can be then deployed to the runtime in a single-click. JavaScript functions can be created within the editor using a rich text editor. A built-in library allows you to save useful functions, templates or flows for re-use. The light-weight runtime is built on Node.js, taking full advantage of its event-driven, non-blocking model. This makes it ideal to run at the edge of the network on low-cost hardware such as the Raspberry Pi as well as in the cloud.
    Downloads: 36 This Week
    Last Update:
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  • 2
    Brunch

    Brunch

    Web applications made easy

    Brunch lets you focus on what matters most, solving real problems instead of messing around with the glue. By being opinionated about your build pipeline, Brunch is able to provide a smooth and fast experience, and makes your config files take a drastic cut. It doesn't take much to get around with brunch. 'brunch new' to create a new project. 'brunch build' to build. 'brunch watch' to live-compile. Installation is one-line, once you have node.js. You will find that the typical config of a Brunch application is an order of magnitude simpler, compared to Webpack, Grunt, or Gulp. Besides configs, brunch is also simpler in terms of commands. Grunt / Gulp commands replicate all plugins it loads. Brunch always has three commands: new, build and watch. Build / watch commands may receive optional production flag which will tell Brunch to optimize assets, javascripts and stylesheets.
    Downloads: 12 This Week
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  • 3
    Pencil

    Pencil

    The Pencil Project's unique mission is to build a free tool

    Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms. The latest stable version of Pencil is 3.1.0 which contains stability fixes and many new features. More details can befound in the releaste notes. Pencil provides various built-in shapes collection for drawing different types of user interface ranging from desktop to mobile platforms. Starting from 2.0.2, Pencil is shipped with Android and iOS UI stencils pre-installed. This makes it even easier to start protyping apps with a simple installation. Starting from 2.0.2 Pencil has even more shape collections included by default. The list of built-in collections now includes general-purpose shapes, flowchart elements, desktop/web UI shapes, Android and iOS GUI shapes.
    Downloads: 10 This Week
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  • 4
    Workbox

    Workbox

    JavaScript libraries for Progressive Web Apps

    Workbox is a set of libraries that can power a production-ready service worker for your Progressive Web App. Stop waiting on the network! You can improve your web app's performance by caching and serving your files, powered by a service worker. Even on an unreliable connection, your web app can still work using the right runtime caching strategies. Looking to build a progressive web app? Workbox makes it easy to create an offline first experience. Workbox is a library that bakes in a set of best practices and removes the boilerplate every developer writes when working with service workers. Precaching, runtime caching, strategies, request routing, background sync, and helpful debugging. Wish you could rely on Google Fonts being available offline after the user has visited your site? Add a quick rule to serve them from the cache. Make your JS and CSS fast by returning the assets from the cache, while making sure they are updated in the background for the next use.
    Downloads: 8 This Week
    Last Update:
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  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Get Started Free
  • 5
    Marked

    Marked

    A markdown parser and compiler. Built for speed

    A low-level markdown compiler for parsing markdown without caching or blocking for long periods of time. Light-weight while implementing all markdown features from the supported flavors & specifications. Available as a command-line interface (CLI) and running in client- or server-side JavaScript projects. The only completely secure system is the one that doesn't exist in the first place. Having said that, we take the security of Marked very seriously. To prevent ReDoS attacks you can run marked on a worker and terminate it when parsing takes longer than usual. Marked can be run in a worker thread on a node server, or a web worker in a browser. Only current and LTS Node.js versions are supported. End-of-life Node.js versions may become incompatible with Marked at any point in time.
    Downloads: 5 This Week
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  • 6
    Summernote

    Summernote

    Super simple WYSIWYG editor

    Simply download and attach your js, css with bootstrap. Customize by Initializing various options and modules. Summernote is licensed under MIT and maintained by the community. Integrate it with any back-end. 3rd parties available in django, rails, angular. Bootstrap uses certain HTML elements and CSS properties which require HTML5 doctype. Summernote uses the Open Source libraries jQuery and Bootstrap, if you are using the Boostrap 3 or 4 versions of Summernote, or just jQuery if you use the Lite version of Summernote. Summernote allows you to customize the toolbar. You can compose a toolbar with pre-shipped buttons. Air-mode give an interface without the Toolbar. To reveal popover Toolbar, select a text where you want to modify. Simply turn on airMode and just focus on text. Styles change according to Bootstraps Theme. The editor uses the Bootswatch Themes based on Bootstrap 3, you can also do the same with Bootstrap 4.
    Downloads: 5 This Week
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  • 7
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 17 This Week
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  • 8
    Quasar Framework

    Quasar Framework

    Build high-performance VueJS user interfaces in record time

    Effortlessly build high-performance & high-quality Vue.js 3 user interfaces in record time. Combine the power of Quasar UI with Quasar CLI. One source code for all platforms simultaneously with all the latest and greatest best practices out of the box. Focus only on your app's features and forget about the boilerplate around it. Build high-performance VueJS user interfaces in record time: responsive Single Page Apps, SSR Apps, PWAs, Browser extensions, Hybrid Mobile Apps and Electron Apps. If you want, all using the same codebase! You get a state-of-the-art UI (that follows Material Guidelines) for your websites and apps out of the box. Best support for desktop and mobile browsers (including iOS Safari!) out of the box. Best-in-class support for each build mode (SPA, SSR, PWA, Mobile app, Desktop app & Browser Extension) and the best developer experience through a tight integration with our own CLI.
    Downloads: 3 This Week
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  • 9
    UpUp

    UpUp

    Easily create sites that work offline as well as online

    UpUp is a tiny JavaScript library that makes sure your users can always access your site's content, even when they're on a plane, in an elevator, or 20,000 leagues under the sea. Your users are no longer sitting at their desktops, with a wire connecting them to the internet. They are visiting your site from a phone in an elevator, from their tablet on the subway, or on their laptop while they sit cramped into seat 25 E. This is why modern browsers support service workers, a new technology which lets you serve your content to your users, even when they are offline. UpUp is a free, open-source project which makes using this modern magic as simple as calling one command. While easy to pick up, UpUp is powerful enough to support anything from showing simple messages, to making fully functional single-page applications available offline, with data customized for each of your users.
    Downloads: 3 This Week
    Last Update:
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  • Veeam Data Platform v13.1 - Get Your Free Trial Icon
    Veeam Data Platform v13.1 - Get Your Free Trial

    Secure by design, portable by default. Recover clean, fast, anywhere. Start a free trial.

    Try Veeam Data Platform today. Experience the unified platform that's secure by design, portable by default, and proven to recover clean, fast, and anywhere.
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  • 10
    Knockout

    Knockout

    Tool to create rich, responsive UIs with JavaScript

    Easily associate DOM elements with model data using a concise, readable syntax. When your data model's state changes, your UI updates automatically. Implicitly set up chains of relationships between model data, to transform and combine it. Quickly generate sophisticated, nested UIs as a function of your model data. Get started with knockout.js quickly, learning to build single-page applications, custom bindings and more with interactive tutorials. Knockout is a JavaScript MVVM (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses observers to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of declarative bindings to enable productive development. For Node.js developers, Knockout is also available from npm.
    Downloads: 2 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!
    Downloads: 2 This Week
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  • 12
    Sass

    Sass

    An extension of CSS, adding nested rules, variables, mixins and more

    Sass is the most mature, stable, and powerful professional grade CSS extension language in the world. Sass is completely compatible with all versions of CSS. We take this compatibility seriously, so that you can seamlessly use any available CSS libraries. Sass boasts more features and abilities than any other CSS extension language out there. The Sass Core Team has worked endlessly to not only keep up, but stay ahead. Sass has been actively supported for over 14 years by its loving Core Team. Over and over again, the industry is choosing Sass as the premier CSS extension language. Sass is actively supported and developed by a consortium of several tech companies and hundreds of developers. There are an endless number of frameworks built with Sass. Compass, Bourbon, and Susy just to name a few.
    Downloads: 2 This Week
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  • 13
    vConsole

    vConsole

    A lightweight, extendable front-end developer tool for mobile web page

    vConsole is a lightweight, extendable front-end developer tool for mobile web page. A plugin allows you to add a new tab, add one or more tool button(s). You can customize the functions of the tab and buttons. After imported, vConsole should be inited manually. When vConsole is not loaded, logs will be printed to native console. After importing vConsole, logs will be printed to both front-end console and native console. Some useful vConsole properties and methods are available for plugin development. You can destroy an vConsole instance object and remove vConsole panel from document. You can also add a new plugin to vConsole. Duplicate plugin will be ignored. Create an vConsole plugin object, bind plugin events to this object, and add this object to vConsole. While installing and running a plugin, vConsole will trigger some events to allow a plugin customizing it's functions.
    Downloads: 2 This Week
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  • 14
    AWS SDK for JavaScript

    AWS SDK for JavaScript

    AWS SDK for JavaScript in the browser and Node.js

    Find all the tools, documentation, and sample code you need to develop secure, reliable, and scalable JavaScript applications on the AWS cloud. Read and watch guidance from experts on AWS. See how to get the most from AWS. Find solutions to common challenges. Gain the knowledge to get the most from the AWS cloud. Get started building Node.js applications with the AWS SDK for JavaScript and front-end web and mobile apps with Amplify JavaScript Libraries. Amplify Libraries are built on top of the AWS SDK for JavaScript and provide easy-to-use interfaces for common app use cases such as authentication, storage, API. To create React applications with AWS SDK, you can use AWS Amplify Library which provides React components and CLI support to work with AWS services. The version 3.x of the AWS SDK for JavaScript is generally available. For more information see the Developer Guide or API Reference.
    Downloads: 1 This Week
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  • 15
    Closure Library

    Closure Library

    Google's common JavaScript library

    The Closure Library is a broad, well-tested, modular, and cross-browser JavaScript library. You can pull just what you need from a large set of reusable UI widgets and controls, and from lower-level utilities for DOM manipulation, server communication, animation, data structures, unit testing, rich-text editing, and more. The Closure Library is server-agnostic and is intended for use with the Closure Compiler. The Closure Library serves as the base JavaScript library for many Google products. Now that the Closure Library is open source, more and more developers outside Google are integrating the library in their own projects. If you are developing a large or growing application, you may benefit from the Closure Library's breadth. A well-tested library can insulate you from cross-browser compatibility issues and the minutiae of client-side programming, letting you focus on the fun stuff.
    Downloads: 1 This Week
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  • 16
    Create React App

    Create React App

    Set up a modern web app by running one command

    Create React App lets you create React apps quickly and easily-- no learning of build tools or build configurations necessary. All you need is one command, and you can get started in seconds. All tools are preconfigured and hidden, and with instant reloads you can focus on code, not build tools. With Create React App your apps need only one build dependency, so everything works together seamlessly, and when it’s time to deploy your bundles are automatically optimized. With Create React App it’s easy to start and easy to “eject”, if ever you want an advanced configuration and edit config files directly. It’s also very easy to maintain, as you only need a single command to upgrade to new versions.
    Downloads: 1 This Week
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  • 17
    LoopBack

    LoopBack

    Build modern applications that require complex integrations

    A highly extensible Node.js and TypeScript framework for building APIs and microservices. A brand new LoopBack core to deliver great extensibility and flexibility written in TypeScript/ES2017. Create powerful APIs easily with a new creation experience for defining REST API's and handling API requests/responses. A new, improved programming model with Dependency Injection and new concepts such as Components, Mixins, Repositories, etc. make this the most extensible version yet. Using OpenAPI-to-GraphQL, create a GraphQL interface for any REST API. Schemas are used to create GraphQL data definitions, and links defined in the OAS are used to create a nested structure, allowing for (deeply) nested queries. GraphQL-incompatible identifiers of your API are sanitized. For example, API parameters or data definitions with unsupported characters (e.g., -, ., ,, :, ;...) are removed.
    Downloads: 1 This Week
    Last Update:
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  • 18
    Plupload

    Plupload

    JavaScript API for building file uploaders

    At its core Plupload is visually flat and you can customize it however you like. We are using HTML5 APIs. Always. Plupload is based on multi-runtime pollyfills for XMLHttpRequest L2, File and Image APIs. So when there's no HTML5 available in the browser, we emulate it ourselves. Files not only can be picked from browse dialog, but also can be dropped directly from the desktop. In some browsers, mostly in those based on WebKit, it is possible to drag and drop whole folders. Since we emulate as much of HTML5 as possible, we are able (among other things) to provide access to raw file data, even in such environments that do not normally support it. One of the biggest benefits of this is that we can display the thumbnails instantly, right as you select the images in the dialog or drag&drop them from the desktop. We slice the files in chunks and send them out one by one. You can then safely collect them on the server and combine into original file.
    Downloads: 1 This Week
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  • 19
    Screwdriver API

    Screwdriver API

    An open source build platform designed for continuous delivery

    Screwdriver is an open-source build platform designed for Continuous Delivery. Screwdriver began as a hack for simplified interfacing with Jenkins at Yahoo in 2012. As the volume of builds increased, it became clear that Jenkins was not stable or feasible to use at the scale we were running builds. In 2016, we rebuilt Screwdriver from scratch in open source with our best coding practices and CICD goals in mind. Screwdriver is executor and SCM-agnostic, meaning you can choose whichever plugin better suits your need or build your own. It's completely free and open-source, and our team is actively maintaining the code. Screwdriver is a self-contained, pluggable service to help you build, test, and continuously deliver software using the latest containerization technologies. We support an expanding list of source code services, execution engines, and databases so Screwdriver can work in your ecosystem.
    Downloads: 1 This Week
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  • 20
    secure-electron-template

    secure-electron-template

    The best way to build Electron apps with security in mind

    A current electron app template with the most popular frameworks, designed and built with security in mind. Once cloned, install the dependencies for the repo by running the following commands (you do not have to run the first command if your command line is already inside the newly cloned repository) Only load secure content (But the developer is responsible for loading secure assets only) Do not enable node.js integration for the remote content. Enable context isolation for the remote content. Handle session permission requests from remote content. Do not disable web security. Define a content security policy. Do not set allowRunningInsecureContent to true. Do not enable experimental features. Do not use enableBlinkFeatures. Do not use allow popups. <webview> verify options and params. Disable or limit navigation. Disable or limit creation of new windows. Do not use openExternal with untrusted content. Disable remote module.
    Downloads: 1 This Week
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  • 21
    WebDGap

    WebDGap

    A PhoneGap alternative for Desktop applications.

    WebDGap allows you to convert any website or HTML/CSS/JavaScript web application to a native Windows, Mac, Linux, and Chrome application. WebDGap also gives you the option to export as a Chrome popup extension, and you can export your app or website as a native PhoneGap application making your app available for mobile devices :)
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    Downloads: 7 This Week
    Last Update:
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  • 22
    CMakeScript is an extension to CMake, a cross-platform, open-source build system. CMakeScript adds Java Script as alternative script language to CMake's home-grown macro language. CMakeScript comes with a visual debugger for Java Script.
    Downloads: 3 This Week
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  • 23
    Module Builder for Vtiger CRM

    Module Builder for Vtiger CRM

    Create custom Vtiger CRM modules without coding

    Module Builder for Vtiger CRM helps administrators create custom CRM modules without coding. Create business specific modules, fields, layouts, icons, numbering and relationships directly from the CRM interface. Features: • Custom modules • Custom fields • Custom layouts • Custom blocks • 1:M relations • N:M relations • Module icons • Menu integration • Record numbering • Export modules • Import modules • List View setup • Safe uninstall • Multi language support Useful for assets, contracts, projects, installations, service records, approvals and other business processes. Compatible with Vtiger CRM 7.x and 8.x. Paid commercial extension with yearly subscription license. One license can be activated on up to two domains, with maximum two active installations. More information: https://it-solutions4you.com/vtiger-extensions/module-builder/
    Downloads: 3 This Week
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  • 24
    HTML-Pad
    This software enable you to create simple and also complicated webpages using html programming.In this software you can type your html program on the left side and can view the output on the right side.this software also enable you to insert advanced CSS tags and all html tags.you can change your information without modifying your previous html code.you can insert advanced CSS function like Buttons,Text Areas etc. only just filling simple information about it.this software is written in java programming language.this software is very easy to use.download it and try it.
    Downloads: 2 This Week
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  • 25
    kodeWeave

    kodeWeave

    HTML/CSS/JS and Markdown Playground For Web Designers and Developers

    kodeWeave is a realtime coding playground for HTML, CSS and Javascript. Similar to JSFiddle and JSBin, but kodeWeave was made to work offline but also as a prototyping application to build applications for desktop operating systems while on mobile devices. (PhoneGap Build is recommended for mobile devices) kodeWeave similar to jsfiddle, jsbin, dabblet, liveweave, codepen, cssdeck, cssdesk, tinkerbin, d3 playground, plunker and pastebin, but allows you to export your web app as a desktop and/or chrome application.
    Downloads: 1 This Week
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