Open Source JavaScript Libraries - Page 19
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JavaScript Libraries
View 77 business solutionsBrowse free open source JavaScript Libraries and projects below. Use the toggles on the left to filter open source JavaScript Libraries by OS, license, language, programming language, and project status.
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React Transmit
Relay-inspired library based on Promises instead of GraphQL.
Relay-inspired library based on Promises instead of GraphQL. API similar to the official Relay API, adapted for Promises. Higher-order Component (HoC) syntax is great for functional-style React. Composable Promise-based queries using fragments. Isomorphic architecture supports server-side rendering. Also works with React Native! -
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React-Virgin
The react-native UI Kit you've been looking for
React-Virgin is a React Native UI kit designed to provide developers with a ready-to-use boilerplate for building mobile applications quickly and efficiently. It includes a foundational project structure along with a set of prebuilt UI components that cover common mobile interface needs such as buttons, lists, headers, loaders, and chat elements. The library is intended to accelerate development by eliminating the need to set up navigation, layout systems, and basic UI elements from scratch. It integrates tools like react-navigation and includes both horizontal and vertical list components, making it easier to create dynamic and scrollable mobile interfaces. React-Virgin focuses on simplicity and accessibility, offering a clean starting point that developers can customize and expand as their application grows. It also includes example implementations and documentation to guide developers through setup and usage. -
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React-WeUI
WeUI Components build with React
React-WeUI is a React component library that brings WeUI, the interface system associated with WeChat-style mobile design, into the React development workflow. Its purpose is to let developers build mobile-oriented interfaces with React while preserving the visual language and component behavior expected from WeUI. The project combines React components with the underlying WeUI styling, which means teams can work in a modern component architecture instead of manually stitching together markup and CSS for each screen. The repository includes documentation with live examples, installation options for both package managers and browser-based usage, and example code that shows how quickly a page can be assembled from imported components. Because of its heritage, React-WeUI is especially relevant for mobile web experiences, lightweight app-like pages, and products targeting users familiar with WeChat-inspired interaction patterns. -
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Recompose
React utility belt for function components and higher-order components
Recompose is a React utility belt for function components and higher-order components. Think of it like lodash for React. You can use Recompose to lift state into functional wrappers, perform the most common React patterns, optimize rendering performance, interoperate with other libraries, build your own libraries, etc. Recompose helpers integrate really nicely with external libraries like Relay, Redux, and RxJS. Recompose focuses on higher-order components. HoCs are functions that accept a base component and return a new component with additional functionality. They can be used to abstract common tasks into reusable pieces. Recompose provides a toolkit of helper functions for creating higher-order components. Many React libraries end up implementing the same utilities over and over again, like shallowEqual and getDisplayName. Recompose provides these utilities for you. Although Recompose encourages the use of function components whenever possible it works with normal React components. -
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RecordRTC
RecordRTC is WebRTC JavaScript library for audio/video
RecordRTC is a client-side JavaScript library for recording browser media streams. It can record audio, video, screen activity, canvas animation, and combined media sources through WebRTC-related browser APIs. The library supports common modern browsers across Windows, macOS, Linux, Android, and selected iOS or Safari use cases. Developers can use promise-based or callback-based recording flows, then retrieve blobs for saving, uploading, or playback. It offers multiple recorder strategies, MIME type options, time-sliced blob delivery, CDN usage, npm installation, and many demos. RecordRTC is useful for screen recorders, webcam capture tools, audio note apps, browser tutorials, and media recording prototypes. -
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Recta Host
Direct printing from JS
Direct printing from JS. This make you direct print from your website / page to ESCPOS based printer (Thermal / Dot Metrix) -
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Reflexbox
Responsive React Flexbox Grid System
Reflexbox is a React utility library that provides a set of flexible layout components built on top of the CSS Flexbox specification, enabling developers to create responsive layouts with minimal effort. It introduces components such as Box and Flex that abstract common layout patterns into reusable primitives, allowing developers to apply spacing, alignment, and sizing through props rather than writing custom CSS. The library integrates seamlessly with styled-system, enabling theme-based design and consistent spacing scales across applications. Reflexbox is designed to be highly composable, allowing developers to build complex layouts by combining simple components. It emphasizes responsiveness by supporting array-based props that adapt styles across breakpoints. The library is lightweight and focuses on performance, making it suitable for both small projects and large-scale applications. -
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Remote Jobs
A list of semi to fully remote-friendly companies (jobs) in tech
Remote Jobs is a community-curated, open source repository that lists companies around the world that support remote work. Each entry describes a company, whether it’s fully remote or partially remote, what regions they hire in, and links to their career pages. The repo serves as a living directory for job seekers looking for remote-friendly employers and for companies wishing to be listed. Contributions are encouraged via pull requests, with guidelines to keep information accurate and up to date. -
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Reselect
Selector library for Redux
Simple “selector” library for Redux (and others) inspired by getters in NuclearJS, subscriptions in re-frame and this proposal from speedskater. Selectors can compute derived data, allowing Redux to store the minimal possible state. Selectors are efficient. A selector is not recomputed unless one of its arguments changes. Selectors are composable. They can be used as input to other selectors. Reselect provides a function createSelector for creating memoized selectors. createSelector takes an array of input-selectors and a transform function as its arguments. If the Redux state tree is mutated in a way that causes the value of an input-selector to change, the selector will call its transform function with the values of the input-selectors as arguments and return the result. If the values of the input-selectors are the same as the previous call to the selector, it will return the previously computed value instead of calling the transform function. -
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Resumable.js
Library for providing multiple uploads via the HTML5 File API
Resumable.js is a JavaScript library providing multiple simultaneous, stable and resumable uploads via the HTML5 File API. The library is designed to introduce fault-tolerance into the upload of large files through HTTP. This is done by splitting each file into small chunks. Then, whenever the upload of a chunk fails, uploading is retried until the procedure completes. This allows uploads to automatically resume uploading after a network connection is lost either locally or to the server. Additionally, it allows for users to pause, resume and even recover uploads without losing state because only the currently uploading chunks will be aborted, not the entire upload. Resumable.js does not have any external dependencies other than the HTML5 File API. This is relied on for the ability to chunk files into smaller pieces. Currently, this means that support is widely available in to Firefox 4+, Chrome 11+, Safari 6+ and Internet Explorer 10+. -
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Riot
Simple and elegant component-based UI library
Why do we need a new UI library? The frontend space is indeed crowded, but we honestly feel the solution is still “out there”. We believe Riot.js offers the right balance for solving the great puzzle. Riot.js brings custom elements to all modern browsers without the use of any polyfill! A custom element glues relevant HTML and JavaScript together forming a reusable component. It is designed to offer you everything you wished native the web components API looked like. HTML syntax is the de facto language of the web and it’s designed for building user interfaces. The syntax is explicit, nesting is inherent to the language, and attributes offer a clean way to provide options for custom tags. Minimalism sets Riot.js apart from others. One of the design goals was to introduce a powerful tag syntax with as little boilerplate as possible. Riot.js has between 10 and 100 times fewer API methods than other UI libraries. -
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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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Simple Automation Middleware (SAM) est un framework permettant de batir des applications sous forme de modules. Il fournit des bibliothèques COM Delphi implémentant la gestion des évènements, Dispatch etc...
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SS Rule Snippet
Surge / Quantumult (X) / Shadowrocket / Surfboard / clash (Premium)
SS Rule Snippet is an open-source collection of network traffic routing rules and configuration snippets for popular proxy management applications. It provides organized rule sets for Surge, Quantumult X, Shadowrocket, Surfboard, and Clash-compatible clients. The project focuses on efficient traffic classification while minimizing unnecessary configuration complexity. Users can apply predefined rules to direct selected network requests through proxies or allow direct connections. Its repository includes ready-made configurations, reusable rule fragments, and specialized Surge modules. Documentation explains how to import configurations, customize rules, and update subscriptions. The project emphasizes maintaining compact rule collections to reduce memory consumption and processing overhead. It is intended for users managing advanced proxy routing and network access policies. -
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SWFSize is a small (really small) library for Adobe Flash technology that works in collaboration with SWFObject and provides control over the swf's container metrics. To add, SWFSize gives you the ability to use the browser's native scrollbars.
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SWire4js
A JavaScript library for developing SWire web applications
SWire4js is a JavaScript library which facilitates the development of SWire web applications. The main purpose of this library is to provide the developer with utility functions for managing the SWire protocol, namely functions for encoding SWire requests and decoding SWire responses. Secondly, it provides a function for generating Stata missing values. SWire4js is self-contained in the swire4js.js file. A SWire web application is a web page which interacts with Stata through SWire. Examples of SWire web applications include those of the SWire Web Apps Collection. This is a collection of demo SWire web applications which is useful in learning how to develop with SWire and SWire4js. These apps can been tried on-line here: http://swire-web-apps-collection.sourceforge.net/ To learn more about SWire, visit https://sourceforge.net/projects/swire/ -
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Sandia Cyber Omni Tracker
Sandia Cyber Omni Tracker (SCOT)
SCOT is an open-source cybersecurity incident response and threat intelligence management system developed by Sandia National Laboratories. It centralizes alert collection, facilitates team collaboration, and enriches data with automated analysis, enhancing the efficiency and effectiveness of security operations teams. -
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Schema.DTS
JSON-LD TypeScript types for Schema vocabulary
The project provides a comprehensive set of TypeScript typings based on the Schema vocabulary, enabling developers to author JSON-LD structured data with strong type safety. It supplies both high-level discriminated unions and helper types to model contexts, graphs, and linked data relationships with clarity and accuracy. Usage examples demonstrate how one can import types like Person, WithContext, or Graph and compose JSON-LD objects in a way that aligns with semantic-web and knowledge-graph practices. The repository also contains a generator tool that can pull ontology definitions and emit TypeScript definitions in bulk, ensuring the typings stay up to date and maintain consistency. It supports scenarios such as nested objects, graphs of entities, and action types with input/output constraints, which makes it suitable for rich metadata authoring and linked-data workflows. While it is maintained by Google, it is not an officially supported Google product. -
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ScrollBooster
Enjoyable content drag-to-scroll library
Enjoyable drag-to-scroll micro-library (~2KB gzipped). Supports smooth content scroll via mouse/touch dragging, trackpad or mouse wheel. Zero dependencies. Easy to setup yet flexible enough to support any custom scrolling logic. -
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ScrollMagic
The javascript library for magical scroll interactions
ScrollMagic helps you to easily react to the user's current scroll position. ScrollMagic is a complete rewrite of its predecessor Superscrollorama by John Polacek. A plugin-based architecture offers easy customizability and extendability. Animate based on scroll position, pin an element starting at a specific scroll position, toggle CSS classes of elements on and off based on scroll position, effortlessly add parallax effects to your website, create an infinitely scrolling page, add callbacks at specific scroll positions or while scrolling past a specific section. Either trigger an animation or synchronize it to the scrollbar movement (like a playback scrub control). Pin an element starting at a specific scroll position, either indefinitely or for a limited amount of scroll progress (sticky elements). You can add callbacks at specific scroll positions or while scrolling past a specific section, passing a progress parameter. -
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This is a JavaScript library which gives the ability to use cryptographic functionality abstracted of available technologies on the browser side. It executes a cryptographic function with the fastest technology including Java, JavaScript and Flash.
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SelectPage
A simple style and powerful selector, including ajax remote data
A simple style and powerful selection jQuery plugin, including ajax remote data, autocomplete, pagination, tags, i18n and keyboard navigation features. -
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SendGrid Node.js Library
The Official Twilio SendGrid Led, Community Driven Node.js API Library
The SendGrid Node.js Library provides a simple interface for sending emails through SendGrid's API, enabling developers to integrate email functionalities into Node.js applications. -
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The Shim jQuery plug-in extends jQuery with methods for dynamically adding and removing an iframe behind an element in order that it my appear in front of browser plug-ins such as Adobe Reader.
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Shoestring
A lightweight, simple DOM utility made to run on a tight budget.
Shoestring is a lightweight, modular DOM framework intended for developers who need their code to download and run as fast as possible. It is intended to be "just enough" of a tool to efficently write maintainable cross-browser JavaScript. The API is modeled after jQuery but we intentionally implement a tiny subset of the API to cover only the methods we commonly need in our projects. Each feature is built as an optional extension to a minimal core so each can be removed from the production build (dependencies between extensions are rare). The selector engine delegates to modern browsers' native document.querySelectorAll (IE8) and addEventListener (IE9), which means it requires browsers that support those features. For projects that require deeper compatibility or a richer set of features, it is simple to swap in jQuery instead. As a rule, anything that works with Shoestring should work with jQuery, but not the converse.
