Open Source JavaScript Libraries - Page 4
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JavaScript Libraries
View 75 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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AutoNumeric
Standalone library that provides live as-you-type formatting
AutoNumeric is a standalone library that provides live-as-you-type formatting for international numbers and currencies. All in all, AutoNumeric supports most international numeric formats and currencies including those used in Europe, Asia, and North and South America. AutoNumeric focuses on efficiency and speed making all your input interactions blazing fast. No dependencies are needed to use AutoNumeric. Written in ES6, AutoNumeric uses the latest technologies and is prepared for the future. While the Android platform makes input management hard to play with, AutoNumeric supports it. AutoNumeric strives to be framework-agnostic, which means you can easily integrate it with third-party frameworks. Checkout the official Vue-AutoNumeric component. -
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Awesome Prometheus Alerts
Collection of Prometheus alerting rules
Awesome Prometheus Alerts is a collection of pre-configured Prometheus alert rules, help users set up effective alerting for infrastructure monitoring. -
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Calibre-Web Automated
Calibre-Web but Automated and with tons of New Features
Calibre-Web-Automated (CWA) is an all-in-one, self-hosted solution for managing an ebook library that combines the modern, lightweight web UI style of Calibre-Web with the deeper tooling and conversion capabilities associated with Calibre. The goal is to reduce the common “two-service” setup where users run Calibre-Web for browsing and Calibre separately for conversions, metadata fixes, and automation, by packaging those workflows together in a single system. CWA keeps the familiar strengths of Calibre-Web, like a responsive interface, OPDS feeds for e-readers, and strong user/permission management, while layering in extensive automation features that handle ingest, conversion, metadata enforcement, and library organization with less manual effort. It also expands authentication options (including modern OAuth/OIDC flows) and adds quality-of-life improvements such as enhanced search/filtering, multi-language UI support, and better device-centric workflows for sending to e-readers. -
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Cap CAPTCHA
The privacy-first, self-hosted CAPTCHA for the modern web
Cap is a privacy-first, self-hosted CAPTCHA system designed as a modern alternative to traditional third-party verification services. It replaces invasive tracking-based CAPTCHA solutions with a lightweight approach based on proof-of-work and client-side instrumentation. The system can be deployed independently, giving developers full control over user data and verification processes. It integrates easily into web applications and focuses on maintaining usability while preventing automated abuse. Cap avoids reliance on centralized providers, reducing dependency on external services and improving privacy compliance. Its design reflects a shift toward decentralized, user-respecting security mechanisms. It is particularly suited for developers who want transparent and customizable bot protection. -
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Chinese Poetry
The most comprehensive database of Chinese poetry
This repository is a curated collection of Chinese poems and poets organized into catalogs, metadata, and text representations suitable for research, creative and cultural use. It includes major dynastic corpora, such as Tang and Song poems, as well as biographical and categorization data. Each poem entry is structured with fields like author, dynasty, title, content, and sometimes annotations or alternate versions. Developers and scholars can build tools that query by author, era, keyword, or poetic form using the standardized data structure. Because the project is open, contributors improve metadata, correct text variants, and maintain consistency across classical collections. The corpus enables digital humanities, poetry apps, styling tools, and creative projects that intermix poems with translation, visualization, or musical settings. -
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Cloudflare-Socks5
CF-workers/pages proxy script: supports Vless-ws (tls) and Trojan-ws
Cloudflare-Socks5 is a proxy deployment toolkit designed to leverage Cloudflare Workers and Pages to create flexible, censorship-resistant proxy nodes using protocols such as VLESS and Trojan. The project provides scripts that enable users to deploy proxy services locally without relying on external subscription providers, improving privacy and control over configuration data. It supports multiple transport modes including WebSocket with TLS, as well as optional encrypted handshake mechanisms like ECH-TLS, standard TLS, or even non-TLS configurations to adapt to different network restrictions. The system is designed with accessibility in mind, offering simplified setup processes that allow users to deploy nodes with minimal configuration, often requiring only a UUID or password. It also includes tools for generating optimized Cloudflare IP selections and supports multiple node formats for compatibility with clients like Clash and sing-box. -
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DXcharts Lite
Flexible open source financial charting library
Why choose DXcharts Lite? - User-friendly interface. DXcharts Lite provides a seamless intuitive user experience with automatic scale zoom, mouse wheel zoom, and chart scrolling. - Versatile chart types. The Lite version supports eight chart types. The platform streams real-time data updates allowing users to stay on top of market movements. - Comprehensive market coverage. DXcharts Lite provides a wide-ranging selection of asset classes and extensive market coverage. This includes a variety of financial instruments such as stocks, forex, cryptocurrencies, and more. - Efficiency and speed. The platform uses HTML5 based on canvas to ensure smooth chart loading and data processing. - Snapshots. The snapshot feature is a handy tool that allows users to take and share chart snapshots anywhere. - Customisation. The platform offers users the ability to personalise their workspace allowing traders to customise their own theme or choose between the predefined dark or white ones. -
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DateTimePicker
Responsive jQuery DateTime Picker plugin for Web & Mobile
DateTime Picker is a quick highly customizable jQuery plugin. The design is clutter-free & well-suited for embedding it into mobile application development. Users can change values using +/- buttons or type values directly into the textbox by selecting each value field. For the web, the picker can be bound relative to the reference element, were it will appear at the bottom of the element. For mobile, the picker can appear as a dialog box covering the entire window. -
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Intermock
Mocking library to create mock objects with fake data for TypeScript
Intermock is a TypeScript utility developed by Google that automatically generates mock objects and JSON data for TypeScript interfaces using the Faker library. It simplifies frontend and API testing by creating realistic, schema-compliant mock data directly from interface definitions, eliminating the need for manual mock creation. Intermock supports a wide range of TypeScript constructs including interfaces, unions, generics, mapped types, and tuples, ensuring comprehensive type coverage. It can be used both via a command-line interface (CLI) and programmatically through its API, making it suitable for integration into build pipelines or development environments. The tool also allows fine-grained control over output format—object, JSON, or string—and supports JSDoc annotations to define custom Faker data generators. By leveraging Intermock, developers can quickly generate realistic mock datasets for testing, prototyping, and documentation purposes without writing boilerplate code. -
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Jspreadsheet CE
Javascript plugin to create web-based tables & spreadsheets
Jspreadsheet CE is a lightweight Vanilla JavaScript data grid plugin to create amazing web-based interactive HTML tables, and spreadsheets compatible data grid with other spreadsheet software. You can create an online spreadsheet table from a JS array, JSON, CSV or XSLX files. You can copy from excel and paste straight to your Jspreadsheet CE spreadsheet and vice versa. It is very easy to integrate any third party JavaScript plugins to create your own custom columns, custom editors, and customize any feature into your application. Jspreadsheet CE has plenty of different input options through its native column types to cover the most common web-based application requirements. It is a complete solution for web data management. Create amazing applications with Jspreadsheet CE JavaScript spreadsheet. -
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LIEF
LIEF - Library to Instrument Executable Formats (C++, Python, Rust)
LIEF (Library to Instrument Executable Formats) is a cross-platform library that enables parsing, modifying, and abstracting executable formats such as ELF, PE, and Mach-O. It's widely used in reverse engineering and binary analysis. -
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LLM Datasets
Curated list of datasets and tools for post-training
LLM Datasets curates and standardizes datasets commonly used to train and fine-tune large language models, reducing the overhead of hunting down sources and normalizing formats. The repository aims to make datasets easy to inspect and transform, with scripts for downloading, deduping, cleaning, and converting to formats like JSONL that slot into training pipelines. It highlights instruction-tuning and conversation-style corpora while also pointing to code, math, or domain-specific sets for targeted capabilities. Quality is a recurring theme: examples and utilities help filter low-value samples, enforce length limits, and split train/validation consistently so results are comparable. Licensing and provenance are surfaced to encourage compliant usage and to guide dataset selection in commercial settings. For practitioners, the repo is a practical “starting pantry” that accelerates experimentation and helps keep data wrangling from dominating the project timeline. -
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Libros de Programación en Español
List of programming books in Spanish for free
Libros de Programación en Español is a curated list of free programming books in Spanish, organized by topic and technology so learners can find high-quality materials without cost. The README is structured as an index with general programming books, followed by sections for specific languages such as JavaScript, TypeScript, Python, Ruby, Rust, PHP, Haskell, Go, Kotlin, Java, and R.Each entry includes the book title, author, and a link to the official or legal free version (PDF, HTML, eBook, etc.), focusing on resources that are legitimately available. Beyond languages, the list also covers frameworks and libraries (like React and Qwik), tools (such as Git), and databases (SQL), grouping them in separate sections for easier browsing. The repository includes a code of conduct and contributing guidelines, inviting the community to help maintain the catalog and keep links up to date. -
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MUI Core
React components for faster and easier web development
MUI Core (formerly Material-UI) consists of React components for faster and easier web development, with options for creating your own design system or starting with Material design. MUI components work without any additional setup, and don't pollute the global scope. -
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Pusher Channels Javascript Client
Pusher Javascript library
Bi-directional hosted APIs that are flexible, scalable and easy to use. We create and maintain complex messaging infrastructure so you can build the realtime features your users need, fast. -
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Sizzle
A sizzlin' hot selector engine
A pure-JavaScript CSS selector engine designed to be easily dropped in to a host library. Browser support may differ between standalone Sizzle and libraries that include Sizzle. Please report issues on Sizzle's issue tracker, rather than the trackers for disparate libraries. In order to build Sizzle, you should have Node.js/npm latest and git 1.7 or later (earlier versions might work OK, but are not tested). For Windows you have to download and install git and Node.js. Mac OS users should install Homebrew. Once Homebrew is installed, run brew install git to install git, and brew install node to install Node.js. Linux/BSD users should use their appropriate package managers to install git and Node.js, or build from source if you swing that way. Workarounds for Internet Explorer 6 are still in the code but the browser is no longer actively tested. Sizzle supports virtually all CSS 3 Selectors, including escaped selectors (.foo\+bar), Unicode selectors, and more. -
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SuperTest
Super-agent driven library for testing node.js HTTP servers
A super-agent driven library for testing node.js HTTP servers using a fluent API. The motivation with this module is to provide a high-level abstraction for testing HTTP, while still allowing you to drop down to the lower-level API provided by superagent. Install SuperTest as an npm module and save it to your package.json file as a development dependency. You may pass an http.Server, or a Function to request(), if the server is not already listening for connections then it is bound to an ephemeral port for you so there is no need to keep track of ports. One thing to note, is that superagent now sends any HTTP error (anything other than a 2XX response code) to the callback as the first argument if you do not add a status code expect (i.e. .expect(302)). Expectations are run in the order of definition. This characteristic can be used to modify the response body or headers before executing an assertion. -
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Underscore.js
JavaScript's utility belt
Underscore.js is a JavaScript utility-library created by Jeremy Ashkenas that provides a broad set of functions for working with arrays, objects, functions, and other data types — essentially a “utility belt” for functional programming in JS. Instead of extending built-in objects or modifying prototypes, Underscore provides its helpers in a single _ namespace, enabling cross-browser support and consistent behaviour across environments. It offers map/filter/reduce, deep-cloning, templating, object traversal, function binding, and more, which makes it easier to write concise, expressive code rather than verbose loops and conditional logic. Many other libraries and frameworks (including Backbone) historically depended on or partnered with Underscore for their utility functions. Even though ES6+ and Lodash have overshadowed some of its role, Underscore remains influential and educational for how to design utility APIs. -
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carbone
Fast and simple report generator, from JSON to pdf, xslx, docx, odt
Turn your JSON into PDF, DOCX, XLSX, PPTX, ODS and many more. Fast, Simple and Powerful report generator in any format PDF, DOCX, XLSX, ODT, PPTX, ODS, XML, CSV using templates and your JSON data as input. -
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clipboard.js
A modern approach to copy text to clipboard
clipboard.js offers a better, more modern approach to copying text from the clipboard. It isn’t dependent on Flash or any bloated framework, just 3kb gzipped. clipboard.js eliminates all the hassles that come with copying text to the clipboard, such as the many steps needed to configure, or the hundreds of KBs you need to load. With clipboard.js you can copy content from another element, cut text from another element, and copy text from attribute. It supports most popular browsers and gracefully degrades if you need to support older browsers. -
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edgetunnel
edgetunnel 2.0 VLESS/Trojan
edgetunnel is a modified version of a serverless tunnelling solution designed to run on platforms like Cloudflare Workers and Pages, enabling protocols such as VLESS and Trojan to be exposed through edge-functions rather than traditional servers. The project’s fork by cmliu emphasizes conversion of protocol configuration (especially VLESS) into subscription links, so that users can deploy and then generate “Clash” or “Sing-box” compatible subscription content easily. It provides a streamlined way to host proxy endpoints without managing a full server stack, instead leveraging the edge network of Cloudflare for distribution and potential performance. Because it runs at the edge, latency can be minimized and deployment complexity simplified; users supply configuration variables (host, port, UUID, path) and the script handles mapping to technical protocols and subscription formatting. -
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emojilib
Emoji keyword library
Emoji keyword library. Make emoji searchable with this keyword library. If you are looking for the unicode emoji dataset, including version, grouping, ordering, and skin tone support flag, check out unicode-emoji-json. -
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frontend-mentor-challenges
My submissions for the Frontend Mentor Challenges
The frontend-mentor-challenges repository contains the author’s submissions to the platform Frontend Mentor — which offers structured UI/UX layout challenges (landing pages, components, form designs) for front-end developers. The codebase shows solutions in HTML, CSS, Javascript, with each challenge typically including an original design file plus the author’s implementation. It’s a great way to practice responsive layouts, CSS grid/flexbox mastery, UI refinement, and build portfolio-worthy front-end snapshots. The README shows that the author has live demos and even a YouTube playlist of walkthroughs. This sort of repository is useful for demonstrating front-end craftsmanship, CSS/HTML mastery, and attention to design detail. It also helps reinforce iteration on design challenges and small reusable components. -
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jquery.matchHeight.js
A responsive equal heights plugin
In the years since this library was originally developed there have been updates to CSS that can now achieve equal heights in many situations. If you only need to support modern browsers then consider using CSS Flexbox and CSS Grid instead. -
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plotly.js
JavaScript charting library behind Plotly and Dash
Plotly JavaScript Open Source Graphing Library. Built on top of d3.js and stack.gl, Plotly.js is a high-level, declarative charting library. plotly.js ships with over 40 chart types, including 3D charts, statistical graphs, and SVG maps. plotly.js is free and open source and you can view the source, report issues or contribute on GitHub. For plotly.js to build with Webpack you will need to install ify-loader@v1.1.0+ and add it to your webpack.config.json. This adds Browserify transform compatibility to Webpack which is necessary for some plotly.js dependencies. When users hover over a figure generated with plotly.js, a modebar appears in the top-right of the figure. This presents users with several options for interacting with the figure. When users hover over a figure generated with plotly.js, a modebar appears in the top-right of the figure. This presents users with several options for interacting with the figure.