Open Source JavaScript Libraries - Page 30
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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-window
React components for rendering large lists and tabular data
React window works by only rendering part of a large data set (just enough to fill the viewport). This helps address some common performance bottlenecks. It reduces the amount of work (and time) required to render the initial view and to process updates. It reduces the memory footprint by avoiding over-allocation of DOM nodes. react-window is a complete rewrite of react-virtualized. If react-window provides the functionality your project needs, it is strongly recommend that you use it instead of react-virtualized. However if you need features that only react-virtualized provides, you have two options. Use react-virtualized. (It's still widely used by a lot of successful projects!). Or, create a component that decorates one of the react-window primitives and adds the functionality you need. You may even want to release this component to NPM (as its own, standalone package)! -
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redocx
Create word documents with React
redocx is a library that lets you create Word documents with React. It provides a set of components that renders your declarative views and components to Word documents. -
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redux-rx
RxJS utilities for Redux
The redux-rx project is a utility library that integrates RxJS observables into Redux workflows, enabling reactive programming patterns for state management. It allows developers to represent streams of actions, state changes, and side effects as observable sequences, providing a powerful alternative to traditional middleware approaches. The library includes tools for creating smart components that derive their behavior from observable data streams instead of imperative state updates. It also introduces an observable-based middleware that complies with Flux Standard Actions, ensuring compatibility with Redux conventions. By leveraging RxJS, developers can compose complex asynchronous logic in a declarative and composable way. The project is particularly useful for applications that require real-time data handling, event streams, or complex side-effect management. -
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rot.js
ROguelike Toolkit in JavaScript
ROguelike Toolkit in JavaScript. Cool dungeon-related stuff, interactive manual, documentation, tests. -
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rowGrid.js
A small, lightweight JavaScript plugin for placing items
rowGrid.js is a small, lightweight (~1000 bytes gzipped) jQuery plugin for placing images (or other items) in straight rows. The grid is similar to grids on Google Image Search, Flickr, Shutterstock and Google+ images. All items must have the same height but the width can be variable. RowGrid.js justifies the items in straight rows so that the width of the rows equals the width of the container/parent element. At first, rowGrid.js adjusts the margin between the items. If this is not enough rowGrid.js scales down the items. -
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scuttlebutt
Peer-to-peer replicatable data structure
Scuttlebutt is an open-source JavaScript library for building peer-to-peer applications with automatically replicated data structures. It enables multiple computers to maintain synchronized copies of shared information without depending on a central database. The library uses gossip-based replication to exchange updates between connected peers. Developers can create custom data models by extending its base replication class. Included implementations demonstrate replicated key-value models and event streams. Its ecosystem also includes collaborative text editing, replicated arrays, and append-only data structures. Optional public-key cryptography helps authenticate updates and verify message origins. Scuttlebutt provides foundational components for decentralized applications, collaborative software, and distributed data synchronization. -
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seamless-immutable
Immutable data structures for JavaScript
Immutable JS data structures which are backwards-compatible with normal Arrays and Objects. Use them in for loops, pass them to functions expecting vanilla JavaScript data structures, etc. Whenever you deeply clone large nested objects, it should typically go much faster with Immutable data structures. This is because the library reuses the existing nested objects rather than instantiating new ones. In the development build, objects are frozen. The development build also overrides unsupported methods (methods that ordinarily mutate the underlying data structure) to throw helpful exceptions. We generally recommend to use the "development" build that enforces immutability (and this is the default in Node.js). Only switch to the production build when you encounter performance problems. By popular demand, functions, errors, dates, and React components are treated as immutable even though technically they can be mutated. -
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sensitive-fields
List of sensitive fields that should be purged for security purposes
List of sensitive fields that should be masked, obfuscated, or purged for security purposes. -
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sharp
High performance Node.js image processing module
The typical use case for this high speed Node.js module is to convert large images in common formats to smaller, web-friendly JPEG, PNG, AVIF and WebP images of varying dimensions. Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips. Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed. As well as image resizing, operations such as rotation, extraction, compositing and gamma correction are available. Most modern macOS, Windows and Linux systems running Node.js v10+ do not require any additional install or runtime dependencies. This module supports reading JPEG, PNG, WebP, AVIF, TIFF, GIF and SVG images. Output images can be in JPEG, PNG, WebP, AVIF and TIFF formats as well as uncompressed raw pixel data. Streams, Buffer objects and the filesystem can be used for input and output. -
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sigma.js
A JavaScript library dedicated to graph drawing
Sigma is a JavaScript library dedicated to graph drawing. It makes easy to publish networks on Web pages, and allows developers to integrate network exploration in rich Web applications. Sigma provides a lot of built-in features, such as Canvas and WebGL renderers or mouse and touch support, to make networks manipulation on Web pages smooth and fast for the user. The default configuration of sigma deals with mouse and touch support, refreshing and rescaling when the container's size changes, rendering on WebGL if the browser supports it and Canvas else, recentering the graph and adapting the nodes and edges sizes to the screen. Sigma provides a lot of different settings to make it easy to customize how to draw and interact with networks. And you can also directly add your own functions to your scripts to render nodes and edges the exact way you want. Sigma is a rendering engine, and it is up to you to add all the interactivity you want. -
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the simpleHtmlDatagrid can be help ajax programmer to build datagrid in web browser more easily.it can not only fill datagrid with array or json array but also add only a row once a time.
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simplebox.js
A simple, responsive lightbox plugin
simplebox.js is a lightweight lightbox plugin (~936 bytes) that is easy to modify or extend to fit your needs. This plugin is intended to be quick, responsive, and efficient. The idea behind this plugin was to make the process of setting up a lightbox painless. My experience with finding and setting up lightbox plugins has been pretty bad. The plugins I've come across almost always have too many features. simplebox.js is designed to have just one feature: lightboxing. It's responsive out of the box and allows only a few crucial settings. -
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simplelightbox
Touch-friendly image lightbox for mobile and desktop
Touch-friendly image lightbox for mobile and desktop. You can customize Simplelightbox by changing the style in simplelightbox.css. You can have multiple lightboxes on one page if you give them different selectors. Only some CSS is included. You can change the style if you want. Lots of options. Preloading next and previous images. Android, iOs, and Windows phone support. -
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sing-box-yg
Sing-box Hardcover Bucket 5-in-1 Agreement VPS Dedicated Script
sing-box-yg is a comprehensive automation script built around the sing-box core, designed to simplify the deployment and management of modern proxy protocols in a unified environment. It integrates multiple advanced networking technologies such as Hysteria2, TUIC, VLESS with Reality, and VMess configurations, enabling users to deploy diverse proxy solutions through a single streamlined workflow. The script supports multiple system environments including VPS, Docker, and containerized setups, making it adaptable to various infrastructure scenarios. It includes automated certificate management, allowing users to switch between self-signed and ACME certificates for secure connections. Additionally, it incorporates advanced routing capabilities such as traffic splitting and multi-country proxy integration, enhancing performance and flexibility. -
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sjcl
Stanford Javascript Crypto Library
The Stanford Javascript Crypto Library is a project by the Stanford Computer Security Lab to build a secure, powerful, fast, small, easy-to-use, cross-browser library for cryptography in Javascript. SJCL is small but powerful. The minified version of the library is under 6.4KB compressed, and yet it posts impressive speed results. SJCL is secure. It uses the industry-standard AES algorithm at 128, 192 or 256 bits; the SHA256 hash function; the HMAC authentication code; the PBKDF2 password strengthener; and the CCM and OCB authenticated-encryption modes. Just as importantly, the default parameters are sensible: SJCL strengthens your passwords by a factor of 1000 and salts them to protect against rainbow tables, and it authenticates every message it sends to prevent it from being modified. We believe that SJCL provides the best security which is practically available in Javascript. -
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skrollr
Stand-alone parallax scrolling library for mobile (Android + iOS)
skrollr is an open-source JavaScript library for creating parallax scrolling effects and scroll-driven animations in web applications. It allows developers and designers to animate CSS properties according to the browser's scroll position. Instead of writing complex JavaScript animation sequences, users define keyframes directly through HTML data attributes. The library interpolates values between keyframes to produce smooth transitions involving colors, positions, rotations, and other visual properties. It supports vertical and horizontal scrolling, relative positioning, and configurable animation behavior. Its standalone architecture requires no jQuery or other JavaScript frameworks. Originally designed for desktop and mobile browsers, skrollr also offers optional plugins for navigation and stylesheet integration. The project is archived and no longer actively maintained. -
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stdlib
Standard library for JavaScript and Node.js
A standard library for javascript and node.js. High performance, rigorous, and robust mathematical and statistical functions. Build advanced statistical models and machine learning libraries. Plotting and graphics functionality for data visualization and exploratory data analysis. Analyze and understand your data. Comprehensively tested utilities for application and library development. Functions to assert, group, filter, map, pluck, and transform your data both in browsers and on the server. Everything you would expect from a modern standard library. Consistent interfaces combined with extensive documentation, examples, tests, and benchmarks. High-quality implementations so you can focus less on finding the right package and more on getting work done. -
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stroll.js
CSS3 scroll effects list
stroll.js is a micro-library for creating subtle, scroll-based list and grid animations in modern browsers. It listens to scroll events and applies CSS transitions to elements as they come into or out of view, producing a lively, tactile feel for long lists. The idea is to make scroll-heavy UIs (like feeds, galleries, or item pickers) feel less flat without having to code complex intersection logic. Because it leans on CSS and simple JavaScript hooks, it stays small and easy to integrate into existing markup. It is well suited for landing pages or portfolio sites where you want a touch of motion without importing a full animation framework. The library’s approach is declarative: you style your list, add stroll, and it handles the in-view choreography. -
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t.js
Lightweight $.Hypertext.Typewriter
Lightweight $.Hypertext.Typewriter. -
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tableExport.jquery.plugin
jQuery plugin to export a html table to JSON, XML, CSV, TSV, TXT, SQL
jQuery plugin to export an html table to JSON, XML, CSV, TSV, TXT, SQL, Word, Excel, PNG, and PDF. -
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tarte
Tarte project provides common API libraries among multi-languages.
Tarte is a project which provides common API libraries among multiple programming languages. -
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tcomb
Type checking and DDD for JavaScript
tcomb is a JavaScript library for defining and checking runtime types in Node.js and browser environments. It gives developers a concise syntax for modeling values, structures, interfaces, enums, unions, refinements, and other domain-level constraints. The library is useful in JavaScript projects where static type information is unavailable or insufficient at runtime. It can validate external inputs, document data expectations, and support safer programming patterns without requiring a full type system migration. tcomb also serves as the foundation for related projects such as tcomb-validation and tcomb-form. Its main value is bringing lightweight, expressive runtime type modeling to JavaScript applications. -
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tcomb-form
Forms library for react
tcomb-form is a React form library that generates forms from tcomb domain models. It builds on tcomb and tcomb-validation to connect data structure, validation logic, and user interface generation in a single workflow. Developers define the shape of the data once, then the library can render form fields, apply validation, and return typed values. This makes it useful for applications with many structured forms where hand-writing every input would create repetitive code. The project supports customization through templates, options, labels, placeholders, and field-level configuration. Although it belongs to an older React ecosystem, it remains a clear example of model-driven form generation for web applications. -
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tcomb-form-native
Forms library for react-native
tcomb-form-native is a React Native forms library built around tcomb domain models and validation. It helps developers generate mobile forms from structured data definitions instead of writing each field manually. The library connects model definitions, validation rules, and UI generation into one workflow, reducing repetitive form code in React Native apps. It supports common input types, custom templates, styling options, and validation feedback based on the underlying tcomb schema. The project is useful for apps that need many structured forms and want consistency across fields and screens. Although it reflects an older React Native ecosystem, it remains a notable example of model-driven form generation for mobile interfaces.
