Open Source JavaScript Software
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JavaScript Software
Browse free open source JavaScript Software and projects below. Use the toggles on the left to filter open source JavaScript Software by OS, license, language, programming language, and project status.
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Find Hidden Risks in Windows Task SchedulerWindows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
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AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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Safe Exam Browser is a webbrowser-environment to carry out online-exams safely. The software changes any computer into a secure workstation. It regulates the access to any utilities and prevents students from using unauthorised resources.
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Webmin
A web-based interface for system administration of UNIX
A web-based system administration tool for Unix servers and services. https://github.com/webmin/webmin -
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Jupyter Notebook
Jupyter Interactive Notebook
The notebook extends the console-based approach to interactive computing in a qualitatively new direction, providing a web-based application suitable for capturing the whole computation process: developing, documenting, and executing code, as well as communicating the results. The Jupyter notebook combines two components. A web application, which is a browser-based tool for interactive authoring of documents which combine explanatory text, mathematics, computations and their rich media output. And Notebook documents, which are a representation of all content visible in the web application, including inputs and outputs of the computations, explanatory text, mathematics, images, and rich media representations of objects. Notebook documents contain the inputs and outputs of a interactive session as well as additional text that accompanies the code but is not meant for execution. -
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Open WebUI
User-friendly AI Interface
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform designed to operate entirely offline. It supports various LLM runners like Ollama and OpenAI-compatible APIs, with a built-in inference engine for Retrieval Augmented Generation (RAG), making it a powerful AI deployment solution. Key features include effortless setup via Docker or Kubernetes, seamless integration with OpenAI-compatible APIs, granular permissions and user groups for enhanced security, responsive design across devices, and full Markdown and LaTeX support for enriched interactions. Additionally, Open WebUI offers a Progressive Web App (PWA) for mobile devices, providing offline access and a native app-like experience. The platform also includes a Model Builder, allowing users to create custom models from base Ollama models directly within the interface. With over 156,000 users, Open WebUI is a versatile solution for deploying and managing AI models in a secure, offline environment. -
Atera all-in-one platform IT management software with AI agentsAtera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
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Leaflet
Open-source JavaScript library for mobile-friendly interactive maps
Leaflet is a leading open source JavaScript library for creating interactive, mobile-friendly maps. Leaflet is light at just about 38 KB, but is already fully equipped with all the mapping features you could need. Leaflet is simple but efficient. It doesn’t try to do everything for everybody, rather it focuses on making the basic things work perfectly. It comes ready with exceptional layering tools, customization features such as pure CSS3 popups and controls, map controls and more right out of the box, and works on all major desktop and mobile platforms. Leaflet also comes with a range of interaction features, and can be extended with an abundance of great plugins. -
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OpenLayers
A high-performance, feature-packed library for all your mapping needs
OpenLayers makes it easy to put a dynamic map in any web page. It can display map tiles, vector data and markers loaded from any source. OpenLayers has been developed to further the use of geographic information of all kinds. It is completely free, Open Source JavaScript, released under the 2-clause BSD License (also known as the FreeBSD). Pull tiles from OSM, Bing, MapBox, Stamen, and any other XYZ source you can find. OGC mapping services and untiled layers also supported. Render vector data from GeoJSON, TopoJSON, KML, GML, Mapbox vector tiles, and other formats. Leverages Canvas 2D, WebGL, and all the latest greatness from HTML5. Mobile support out of the box. Build lightweight custom profiles with just the components you need. Style your map controls with straight-forward CSS. Hook into different levels of the API or use 3rd party libraries to customize and extend functionality. -
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Quill
Your powerful rich text editor
Quill is a powerful, free and open source WYSIWYG editor made for the modern web. Equipped with modern architecture and an expressive API, it’s highly compatible, extensible and customizable to fit any need. With granular access to editor content, changes and events, and consistent solid performance with JSON as both input and output, developers will find working with Quill a wonderful experience. Quill works with all modern browsers on desktops, tablets and phones, and delivers a consistent behavior and HTML across all platforms. It’s being used in numerous projects already, from small to large Fortune 500 ones. See how well Quill can fit into your own project! -
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D3.js
A JavaScript library for visualizing data using web standards
D3.js (or D3 for Data-Driven Documents) is a JavaScript library that allows you to produce dynamic, interactive data visualizations in web browsers. With D3 you can bring data to life using SVG, Canvas and HTML. Powerful visualization and interaction techniques plus a data-driven approach to DOM manipulation means D3.js gives you greater design freedom and control over the final result. -
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Redash
Connect to any data source, easily visualize and share your data
Redash is an essential tool to help you make sense of your data. It allows everyone, regardless of level of technical know-how to harness the power of data. SQL users connect, query, visualize and share data easily and efficiently, allowing everyone in their organization to use the data. Redash combines the power and comfort of an SQL client with the collaborative benefits of a cloud-based service. It lets you create big, beautiful and easy to digest visualizations on dashboards for better decision-making. Redash supports a multitude of SQL and NoSQL data sources, and can be extended to support even more. Best of all it’s open source, so you can customize and add features to suit your organization’s needs perfectly. -
The AI workplace management platformBy combining AI workflows, predictive intelligence, and automated insights, OfficeSpace gives leaders a complete view of how their spaces are used and how people work. Facilities, IT, HR, and Real Estate teams use OfficeSpace to optimize space utilization, enhance employee experience, and reduce portfolio costs with precision.
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The PhotoShop Scripts project is a catch-all for several toolkits and scripts that have been developed to facilitate the use of JavaScript for scripting Photoshop and other Adobe Creative Suite applications.
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GrapesJS
Free and Open source Web Builder Framework
GrapesJS is an open-source, multi-purpose, Web Builder Framework that combines different tools and features with the goal to help you (or users of your application) to build HTML templates without any knowledge of coding. It's a perfect solution to replace the common WYSIWYG editors, which are good for content editing but inappropriate for creating HTML structures. You can see it in action with the official demos, but using its API you're able to build your own editors. If you're here just to build stuff faster, open and bookmark the official demos and use them when you need it. GrapesJS comes with a set of built-in blocks, in this way you're able to build your templates faster. If the default set is not enough you can always add your own custom blocks. GrapesJS implements simple and powerful Style Manager module which enables independent styling of any component inside the canvas. It's also possible to configure it to use any of the CSS properties. -
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elFinder
Open-source file manager for web, written in JavaScript
elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Creation is inspired by the simplicity and convenience of Finder program used in Mac OS X operating system. elFinder 2.1.x is currently actively developed, and recommended version. elFinder 2.0.x is stable version but lacks advanced features. All operations with files and folders on a remote server (copy, move, upload, create folder/file, rename, etc.). High-performance server backend and light client UI. Multi-root support. Local file system, MySQL, FTP, SFTP, Box, Dropbox, GoogleDrive and OneDrive volume storage drivers. Support AWS S3, Azure, Digital Ocean Spaces and more with League\Flysystem. Flysystem driver. Cloud storage (Box, Dropbox, GoogleDrive and OneDrive) drivers. Background file/folder upload with Drag & Drop HTML5 support. -
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Epub.js
Enhanced eBooks in the browser
Epub.js is an open-source Javascript library that allows any web page to render Epub documents on any device with a modern browser. Epub.js contains a flexible rendering engine and provides a simple interface for common ebook functions such as styling, persistence and pagination. We release and maintain Epub.js on GitHub, with a growing developer community. Just include a single javascript file, and pointing it at a hosted epub. Epub.js provides an interface for common ebook functions (such as rendering, persistence and pagination) without the need to develop a dedicated application or plugin. Importantly, it has an incredibly permissive Free BSD license. The EPUB standard is a widely used and easily convertible format. Many books are currently in this format, and it is convertible to many other formats (such as PDF, Mobi and iBooks). -
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Electron Packager
Customize and package your Electron app with OS-specific bundles
Electron Packager is a command line tool and Node.js library that bundles Electron-based application source code with a renamed Electron executable and supporting files into folders ready for distribution. For creating distributables like installers and Linux packages, consider using either Electron Forge (which uses Electron Packager internally), or one of the related Electron tools, which utilizes Electron Packager-created folders as a basis. Note that packaged Electron applications can be relatively large. A zipped, minimal Electron application is approximately the same size as the zipped prebuilt binary for a given target platform, target arch, and Electron version (files named electron-v${version}-${platform}-${arch}.zip). Building an Electron app for the Windows target platform requires editing the Electron.exe file. Currently, Electron Packager uses node-rcedit to accomplish this. -
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Stretchly
The break time reminder app
Stretchly is a cross-platform open-source app that reminds you to take breaks when working on your computer. When you run Stretchly for the first time, you are presented with a Welcome window that allows you to change the language, review the preferences, view the online tutorial or simply continue with the default preferences. Stretchly itself lives in your tray, only displaying a reminder window from time to time, which contains an idea for a break. By default, there is a 20 second Mini Break every 10 minutes and a 5 minute Long Break every 30 minutes (after 2 Mini Breaks). You'll be notified 10 seconds before a Mini Break (and 30 seconds before a Long Break) so that you can prepare to pause your work. When a break starts, you can postpone it once for 2 minutes (Mini Breaks) or 5 minutes (Long Breaks). Then, after a specific time interval passes, you can skip the break. Both actions are available by clicking on the link at the bottom of window. -
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QuickPlay
Retro-Gaming Multi-Emulator Frontend. Frontend-of-Frontends
Welcome to the QuickPlay homepage. QuickPlay - MAME Edition is a powerful Windows universal emulator frontend, which has support for countless emulators, systems, game sets and other emulation frontend projects. Its main focus is on being user friendly, simple to set up, yet thorough: its a combined searchable library for all of your retro-gaming...It has a novel Emulator Finder system that takes the hassle out of initial setup and ongoing maintainance -
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Pure.css
A set of small, responsive CSS modules that you can use
A set of small, responsive CSS modules that you can use in every web project. Pure is ridiculously tiny. The entire set of modules clocks in at 3.7KB* minified and gzipped. Crafted with mobile devices in mind, it was important to us to keep our file sizes small, and every line of CSS was carefully considered. If you decide to only use a subset of these modules, you'll save even more bytes. Pure builds on Normalize.css and provides layout and styling for native HTML elements, plus the most common UI components. It's what you need, without the cruft. Pure is responsive out of the box, so elements look great on all screen sizes. Pure has minimal styles and encourages you to write your application styles on top of it. It's designed to get out of your way and makes it easy to override styles. By using Grids, Menus, and more, it's easy to create beautiful responsive layouts for all screen sizes. We've made it easy for you to get started. -
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Tracing Framework
Web Tracing Framework libraries and extensions
The Web Tracing Framework (WTF) is an open source suite of tools, libraries, and visualizers created by Google to help developers analyze and optimize the performance of complex web applications. By adding lightweight instrumentation to their code, developers can trace execution flow, identify bottlenecks, and detect performance regressions. The framework provides fine-grained insights into application behavior, making it particularly useful for achieving smooth, high-performance experiences, such as maintaining 60fps animations in web interfaces. It includes visualization tools that allow for detailed analysis of timing, resource usage, and event flow, enabling developers to diagnose and fix inefficiencies effectively. While still experimental, WTF is designed to be extensible and community-driven, encouraging contributions and adaptations for various types of web applications. -
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Winds
A Beautiful Open Source RSS & Podcast App Powered by Getstream.io
Winds is a beautiful open-source RSS and Podcast app created using React & Redux on the frontend and Express.js on the backend. Use the free hosted version or run it on your own server and customize it as you see fit. Contributions in form of pull requests are always appreciated. Activity Feeds & Discovery in Winds are powered by Stream, the app leverages Algolia for search, AWS for hosting, MongoDB Atlas for a hosted database (DBaaS), and SendGrid for email. All of these services have a free tier. Stream is an API for building activity feeds. For Winds the follow suggestions and the list of articles from the feeds you follow is powered by Stream. Stream accounts are free for up to 3 million feed updates and handle personalization (machine learning) for up to 100 users. -
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wavesurfer.js
Navigable waveform built on Web Audio and Canvas
wavesurfer.js is a customizable audio waveform visualization, built on top of Web Audio API and HTML5 Canvas. With wavesurfer.js you can create anything from an HTML5 audio player to a sophisticated DJ application. wavesurfer.js works only in modern browsers supporting Web Audio. It will fallback to Audio Element without graphics in other browsers (IE 11 and lower). You can also try wavesurfer.swf which is a Flash-based fallback. The audio will start playing as you press play. A thin line will be displayed until the whole audio file is downloaded and decoded to draw the waveform. Web Audio needs the whole file to decode it in the browser. You can however load pre-decoded waveform data to draw the waveform immediately. wavesurfer.js runs on modern browsers supporting Web Audio, including Firefox, Chrome, Safari (desktop and mobile) and Opera. -
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Greasemonkey Port
Greasemonkey Port for the SeaMonkey Browser
Please note that there are no guarantees that XPI installations will work in advertised minVersion and maxVersion. Farby did include some basics for SeaMonkey however a few things seem to be missing. The current HEAD here will probably not work directly in Firefox and nor should you be using this fork in Firefox. It is intended for SeaMonkey users only. Announcements at https://openuserjs.org/announcements/Greasemonkey_Port_Update -
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NüHelp: Word/HTML to CHM converter
Convert Microsoft Word and HTML files to a CHM help file.
*New version 2018.04.23* - use the contact page on opulos.com or sourceforge to report any issues. NüHelp converts Microsoft Word documents and HTML files to a CHM file. It's easy to use for beginners and has lots of options for advanced users. Requirements: 1) Word 2003, 2007, 2010 or 2013. 2) HTML Help Workshop (included in zip file) 3) .Net 3.5 Client Profile (already on most computers) *** Win7/8 users: After downloading the file, you will have to right click on the zip file, click properties, and then click the unblock button before unzipping. Otherwise the two chm help files in the zip file will either appear blank or say webpage not found. Tip: Use NuZip to zip CHM files to prevent gmail from rejecting the attachment: http://sourceforge.net/p/nuzip For programmers, a framework is provided that shows you how to link specific screens in your application to specific sections in the help file. NüHelp is written in C# -
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xajax is an open source PHP and Javascript library that allows you to easily create powerful Ajax enabled web applications using PHP, HTML, CSS and Javascript. Update web page content asynchronously with simple Javascript calls to access your PHP cod
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Hcon Security Testing Framework
Open Source Penetration Testing / Ethical Hacking Framework
HconSTF is Open Source Penetration Testing Framework based on different browser technologies, Which helps any security professional to assists in the Penetration testing or vulnerability scanning assessments.contains webtools which are powerful in doing xss(cross site scripting), Sql injection, siXSS, CSRF, Trace XSS, RFI, LFI, etc. Even useful to anybody interested in information security domain - students, Security Professionals,web developers, manual vulnerability assessments and much more. -
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AyeSpy
A performant visual regression testing tool
Aye Spy is a high-performance visual regression tool to catch UI regressions. Aye Spy takes inspiration from existing projects such as Wraith and BackstopJs. We have found visual regression testing to be one of the most effective ways to catch regressions. It's a great tool to have in your pipeline, but the current solutions on the market were missing one key component we felt was essential for a great developer experience performance.
