Open Source JavaScript Software - Page 75
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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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React-Proto
React application prototyping tool for developers and designers
React prototyping for designers and developers. Quickly create, drag, and resize components to create a visual representation of your application. Define parent and child components along with props and state. Inject files into an existing project, start a new project using create-react-app, or clone your favorite github boilerplate. The application can be run from cli using react-proto command or by clicking on the application icon. To start a new project, either import a mockup or start with a blank stage. Add components you would like to create using the input, then drag the component frame into place and resize accordingly. While building, you can use the icons in the toolbar to zoom, toggle the draggability of the stage, update or remove an image, collapse the left container, and export your files. For each component, you have the ability to define whether your component will have state, the color of the frame component, and the ability to apply a parent component. -
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ReactJS Interview Questions
List of top 500 ReactJS Interview Questions & Answers
ReactJS Interview Questions is a curated collection of over 500 commonly asked questions and answers about React and its ecosystem. The repository is designed as a preparation resource for developers preparing for interviews involving React, Redux, React Router, React Native, and related JavaScript technologies. It covers a broad spectrum of topics, from the fundamentals of React components and state management to advanced concepts like hooks, performance optimization, and design patterns. The project also extends into practical integration topics, such as working with APIs and handling routing. Future updates plan to add coding exercises, making the resource even more hands-on for learners. With contributions from the developer community, it serves as a practical guide for interview readiness and continuous skill-building. -
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Rebass
React primitive UI components built with styled-system
Start your design system without boiling the ocean. Build consistent UI with design constraints and user-defined scales. Best-in-class developer ergonomics with Styled System props. First-class support for theming & fully compatible with Theme UI. Quick, mobile-first responsive styles with array-based syntax. Flexbox layout with the Box and Flex components. Flexibility built in for high design & development velocity. Minimal footprint at about 4KB. By default, Rebass components are stylistically unopinionated and do not include a theme. You can add a theme to your application with a ThemeProvider component and by providing a theme in context. For this guide, use the Emotion ThemeProvider with the default Rebass preset theme. You can use Rebass components out-of-the-box to build larger, composite components. All components in Rebass are extensions of the base Box component, which includes an sx prop for theme-based styling as well as a standard set of Styled System style props. -
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RegExr
Tool for creating, testing, and learning about Regular Expressions
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). RegExr was created by gskinner.com, and is proudly hosted by Media Temple. Edit the Expression & Text to see matches. Roll over matches or the expression for details. PCRE & JavaScript flavors of RegEx are supported. Validate your expression with Tests mode. The side bar includes a Cheatsheet, full Reference, and Help. You can also Save & Share with the Community, and view patterns you create or favorite in My Patterns. Explore results with the Tools. Replace & List output custom results. Details lists capture groups. Explain describes your expression in plain English. It provides full RegEx Reference with help & examples. Undo & Redo with ctrl-Z / Y in editors. Search for & rate Community Patterns. You can also group multiple tokens together and create a capture group for extracting a substring or using a backreference. -
Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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Release It!
Automate versioning and package publishing
Generic CLI tool to automate versioning and package publishing-related tasks. Use release-it for version management and publish to anywhere with its versatile configuration, a powerful plugin system, and hooks to execute any command you need to test, build, and/or publish your project. The latest major version is v15, supporting Node.js 14 and up (as Node.js v12 is EOL). Use release-it v14 for environments running Node.js v10 and v12. Although release-it is a generic release tool, installation requires npm. To use release-it, a package.json file is not required. The recommended way to install release-it also adds basic configuration. You will be prompted to select the new version, and more prompts will follow based on your setup. Run release-it from the root of the project to prevent potential issues. Out of the box, release-it has sane defaults, and plenty of options to configure it. -
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Rhubarb
A WebSocket library optimized for multiplayer JS games
Rhubarb is a lightweight WebSocket library for multiplayer HTML5 games. It is originally designed to be used by the ROYGBIV Engine. However, it can be used outside of ROYGBIV as well. Javascript is slow, therefore we want to have as much main-process-power as we can in order to do game related calculations, graphics rendering and achieving 60 FPS. For multiplayer games achieving 60 FPS gets even more complicated given that transferring data over WebSockets is a slow operation. It also triggers GC activity by copying the transferred data (if JSON is the preferred way), which eventually slows down the main thread as well. -
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Rocket.Chat
The communications platform that puts data protection first
Real-time conversations with your colleagues, other companies or customers. Enable teams to collaborate with real-time chat, audio, file sharing and video calls. Communicate in real-time with partners, vendors, suppliers or any external organization. Talk to visitors and customers in one place, regardless of how they connect with you. Explore our marketplace to find and build custom apps that streamline your workflows. Control over the stewardship of your data. E2E encrypted, ISO 27001 certified, and supporting compliance with GDPR, CCPA, LGPD, and HIPAA. Unlimited customizations, security assurances, and ability to contribute to the roadmap. Talk to colleagues, partners, vendors, website visitors, or customers, regardless of the channel they choose to connect with you. Become a part of the largest open-source communications community in the world. Collaborate with millions of users and developers who are improving the way the world communicates. -
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Rules And Scripts
Shunt rules, rewrite rules, and scripts
Rules And Scripts is a large rules-and-scripts repository for traffic routing rules, rewrite rules, and automation scripts. It organizes community-sourced rule material and script resources into a single reference collection. The project is mainly written for learning and research around ES6 and rule-based automation. It includes routing rules, rewrite resources, external collections, icons, blank templates, and automation scripts. Some scripts are prepared for Quantumult X Gallery and BoxJS-style subscription workflows. Because the repository depends on third-party tools, external rule data, and user-filled configurations, users need to evaluate legality, accuracy, and suitability for their own environment. -
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SVGR
Transform SVGs into React components
React supports SVG out of the box, it's simpler, easier and much more powerful to have components instead of SVG files. Wrapped in a React component, your SVG is inlined in the page and you can style it using CSS. SVGR differs from other library by its solid architecture. It uses svg-parser + Babel to transform SVG code into JavaScript code. A whole directory can be processed, all SVG files (matching .svg or .SVG) are transformed into React components. It is possible to target React Native using react-native-svg. SVGR exposes a Node API, you can create a custom script or build another tool based on SVGR. SVGR can be used as a webpack loader, this way you can import your SVG directly as a React Component. SVGR ships with a handful of customizable options, usable in both the CLI and API. Modify all SVG nodes with uppercase and use a specific template with react-native-svg imports. All unsupported nodes will be removed. -
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Scalene
High-performance CPU, GPU, and memory profiler for Python
Scalene is a high-performance CPU, GPU and memory profiler for Python that does a number of things that other Python profilers do not and cannot do. It runs orders of magnitude faster than other profilers while delivering far more detailed information. Once Scalene has profiled your program, it will launch a web browser with an interactive user interface (all processing is done locally). Hover over bars to see breakdowns of CPU and memory consumption, and click on underlined column headers to sort the columns. Scalene is fast. It uses sampling instead of instrumentation or relying on Python's tracing facilities. Its overhead is typically no more than 10-20% (and often less). Scalene performs profiling at the line level and per function, pointing to the functions and the specific lines of code responsible for the execution time in your program. Scalene separates out the percentage of memory consumed by Python code vs. native code. -
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Schnack
Simple self-hosted node app for Disqus-like drop-in commenting
A lightweight, self-hosted comment system for websites that integrates with OAuth providers for authentication. -
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ScreenCat
Webrtc screensharing electron app for mac os (Alpha)
The ScreenCat project is an open-source screen sharing and remote collaboration application built on Electron and WebRTC that lets users share their desktop and grant control of mouse and keyboard to remote participants. Originally designed for developers and tech enthusiasts rather than commercial use, it emphasizes hackability and contribution from the community. The software uses experimental Chromium WebRTC APIs to stream desktop video to another peer, and it supports remote control through a browser interface by sending a simple invite code. Although still in alpha status, it provides a rare open collaborative alternative to proprietary screen sharing solutions. The architecture includes native dependencies for simulating input events, enabling real-time remote control across systems. Users can also screenshare between two ScreenCat applications or with a normal web browser, making it versatile for remote assistance and pairing scenarios. -
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Selectize
Hybrid of a textbox and <select> box for tagging and contact lists
Selectize is the hybrid of a textbox and <select> box. It's jQuery-based and it's useful for tagging, contact lists, country selectors, and so on. It clocks in at around ~7kb (gzipped). The goal is to provide a solid & usable user-experience with a clean and powerful API. It's a lot like Chosen, Select2, and Tags Input but with a few advantages. Developed by @brianreavis (partly at DIY). Licensed under the Apache License, Version 2.0… so do whatever you want with it! Skinnable. Comes with LESS stylesheets and shims for Bootstrap 2 and Bootstrap 3 (+ precompiled CSS). Interface & make addons like a boss with the plugin system. Fully documented on GitHub & inline. Want to search an item's title and description? No problem. You can even override the scoring function used for sorting if you want to get crazy. Order matters sometimes. Use the and arrow keys to move between items. -
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Serverless Framework
The easy and open way to build serverless applications
Serverless Framework gives you everything you need to build serverless applications on any cloud. It provides structure, workflow automation and best practices out-of-the-box so you can deploy sophisticated serverless architectures. It uses new, event-driven compute services, such as AWS Lambda, Azure Functions, Google CloudFunctions and more. Serverless Framework lets you build apps made up of microservices that run in response to events. These auto-scale and will only charge you when they run, which means lesser costs for application maintenance. You can also create new or extend existing commands with its great selection of community-written plugins. -
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Servicebot
Open-source subscription management & billing automation system
Servicebot is an open-source billing and subscription management platform built for SaaS applications. It integrates with Stripe to handle user signup, plan management, invoicing, and metered billing. Servicebot provides embeddable UI components and a backend API, allowing developers to easily add pricing and billing functionality without building it from scratch. -
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Shiptest
The Shiptest Codebase
Shiptest is an open source fork of Space Station 13 that replaces the traditional single-station gameplay with multiple player-controlled ships. Instead of being confined to one station, players can design, operate, and explore with their own ships in a shared space environment. The repository contains full source code, assets, and maps to host or develop servers. Shiptest introduces new mechanics around ship construction, navigation, and resource management, creating a sandbox that emphasizes exploration and collaboration. Its modular design allows for diverse playstyles, from engineering and trade to combat and survival. The project is actively updated by its community, pushing SS13 gameplay in a fresh, experimental direction. -
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Shoutem UI
Customizable set of components for React Native applications
Shoutem UI is a set of styleable components that enables you to build beautiful React Native applications for iOS and Android. All of our components are built to be both composable and customizable. Each component has a predefined style that is compatible with the rest of the Shoutem UI, which makes it possible to build complex components that look great without the need to manually define complex styles. You can also use standard React Native components in your layouts anywhere you want, but they will not inherit either the theme or the parent styles, so you will need to style them manually. Shoutem UI is a part of the Shoutem UI Toolkit that enables you to build professional-looking React Native apps with ease. -
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Shuffle Automation
A general purpose security automation platform
Shuffle is an open-source security automation platform built for security teams, MSSPs, and service providers. It helps teams connect tools, automate repetitive security operations, and coordinate workflows through a visual editor. The platform includes a workflow engine, app integrations, OpenAPI-based app creation, and premade apps for common security tools. It can be self-hosted or used through the cloud, giving teams flexibility based on their operational needs. Shuffle also supports organizations and sub-organizations, which makes it useful for managed service environments. Its main goal is to make security automation more collaborative, reusable, and accessible without forcing teams to build every integration from scratch. -
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Simditor
An easy and fast WYSIWYG editor
Simditor is a browser-based WYSIWYG text editor. It is used by Tower, a popular project management web application. Supported browsers are IE10+, Chrome, Firefox, and Safari. Use the placeholder attribute value of the textarea by default. Insert a hidden input in textarea to store params (key-value pairs). Accept false or key value pairs. Extra options for uploading images. e.g. 'url', 'params'. Support uploading by pasting images from clipboard. Only supported by Firefox and Chrome. simditor.css is compiled from '.scss' source file using Sass. If you want to change the style of Simditor, you can simply change simditor.scss and reproduce the CSS file. .editor-style is the layout style of the textarea. Customize this file if you want a different text format. You can also create your own extensions for Simditor. -
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SimpRead
An extension that allows you to instantly enter immersive reading
Unique function, by extracting titles, descriptions, text, media pictures/videos and other resources to generate pages that conform to Chinese reading habits, with zero-interference and immersive features, suitable for in-depth reading. Do not change the structure of the current page, just highlight the part that needs to be read, suitable for temporary reading or websites that are not adapted to the reading mode. Have pictures you don’t want to show? no problem! Any element on the page can be re-edited. The brand-new lexical analysis engine can not only recognize Wordpress, Hexo, Ghost, and Discuz, as long as it is a well-structured page, it can automatically generate a reading mode. Not only that, but also has a variety of recognition modes. -
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Simple Line Icons
Simple and Minimal Line Icons
Simple line icons with CSS, SASS, LESS & Web-fonts files. You can find a cheat sheet of the complete set of icons at Simple Line Icons - GitHub Pages. Alternatively, you can also clone or download this repository as zip. If you are a designer, you can use this creative cloud library in your project. Jamal Jama for creating this awesome webfont & Ahmad Firoz for extending it further. -
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SiriWave
The Apple® Siri wave-form replicated in a JS library
The "Apple Siri" wave is replicated in pure Javascript using the Canvas API. To learn more about the project, read the blog post, and check the demo or code pen. Import the UMD package via the unpkg CDN and it's ready to use. Create a div container and instantiate a new SiriWave object. Stop the animation and destroy the canvas, by removing it from the DOM. Subsequent start() calls on this SiriWave instance will fail with an exception. -
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SlimerJS
A scriptable browser like PhantomJS, based on Firefox
SlimerJS is a scriptable browser. It allows you to manipulate a web page with an external Javascript script: opening a webpage, clicking on links, modifying the content... It is useful to do functional tests, page automation, network monitoring, screen capture etc. It is a tool like PhantomJs, except that it runs Gecko instead of Webkit, and it is headless when using Firefox 56+. It can be used with Firefox 59. Higher version of Firefox is not supported and probably will not be supported in the future, as the development is suspended for now. SlimerJS provides the same API of PhantomJS. The current version of SlimerJS is highly compatible with PhantomJS 2.1. See current release notes in docs/release-notes-*.rst, and read the compatibility table to know the implementation level. The main goal of SlimerJS is to allow to execute all scripts developed for PhantomJS. So you could use tools like CasperJS. In fact, CasperJs 1.1 and higher can be executed with SlimerJS! -
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SmartPhoto
The most easy to use responsive image viewer
SmartPhoto is a JavaScript-based photo viewer designed for mobile and desktop environments. It provides a smooth, touch-friendly experience for browsing images in galleries with features like zooming, swiping, and lightbox effects. -
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SmartYouTubeTV
Watch YouTube videos on your TV and set-top-box with comfort
SmartTubeLegacy is an alternative YouTube client designed for Android TV devices, focusing on providing a cleaner and more customizable viewing experience. It removes ads and unnecessary distractions, allowing users to focus on content without interruptions. The application includes advanced playback features such as background play, customizable controls, and improved navigation. It is optimized for TV interfaces, ensuring smooth performance and usability with remote controls. The project also supports user preferences, enabling customization of the interface and playback behavior. It is particularly popular among users who want a more streamlined and user-controlled YouTube experience. Overall, SmartTubeLegacy enhances the default YouTube experience by prioritizing usability, customization, and performance.