Open Source JavaScript Libraries - Page 2
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JavaScript Libraries
View 74 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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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. -
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smooth UI
Modern React UI library
Modern React UI library. Code less, do more. Smooth UI is a style system / UI library for React. It works with Styled Components or Emotion. It is focused on developer experience, and productivity. You can focus on what you want to build instead of on how to build it. BrowserStack allows us to test in real browsers. -
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Free texture packer
Free texture packer
Free Texture Packer is a desktop tool for creating sprite sheets from individual images, ideal for game developers using engines like Phaser or Unity. It supports multiple export formats and efficient packing algorithms. -
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JavaScript Algo and Data Structures
Algorithms and data structures implemented in JavaScript
javascript-algorithms is an open source repository by Oleksii Trekhleb that provides implementations of algorithms and data structures in JavaScript. Each algorithm includes explanations, complexity analysis, and references for further reading, making it both a coding resource and a study guide. The repository covers topics such as sorting, searching, graph algorithms, cryptography, and data structures like linked lists, stacks, and queues. It is designed to help developers understand algorithm fundamentals and practice problem-solving with JavaScript. Multilingual README files make the resource accessible to a global audience. With strong community engagement, it is one of the most popular algorithm repositories on GitHub. -
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Modernizr
JS library that detects HTML5 & CSS3 features in user’s browser
Modernizr is a JavaScript library that tells you what HTML, CSS and JavaScript features are present in your user’s browser. This helps you to respond better to your users’ browser features and offer a more tailored experience. Differences in users’ browsers and devices can often cause differences in user experience when opening your web page. To provide a consistently great user experience, you need to be able to respond to your users’ browser features in the best way. Modernizr detects the specific feature sets in each browser so you can easily deliver a tiered experience to users: using the latest features available for modern browsers while still supporting older ones. -
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OpenMoji
Open source emojis for designers, developers and everyone else!
Open source emojis for designers, developers and everyone else! OpenMoji is an open source project of 60+ students and 3 professors of the HfG Schwäbisch Gmünd and 20+ external contributors. All emojis are free to use under the CC BY-SA 4.0 license. So far more than three thousand emojis over many categories have been designed. OpenMoji carefully supports the Unicode Emoji standard. All emojis follow a single style guide and fit perfectly together. Supporting a wide range of use cases with colored and outlined emojis. OpenMoji supports the Fitzpatrick skin tones scale and multiple skin tone combinations. OpenMoji ships with various special interest categories beyond standard unicode. All emojis have been carefully designed, tested and reviewed over many iterations. From Andorra to Zimbabwe to Pirates. -
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Retire.js
Scanner detecting the use of JavaScript libraries
There is a plethora of JavaScript libraries for use on the web and in node.js apps out there. This greatly simplifies, but we need to stay updated on security fixes. "Using Components with Known Vulnerabilities" is now a part of the OWASP Top 10 and insecure libraries can pose a huge risk for your web app. The goal of Retire.js is to help you detect the use of versions with known vulnerabilities. Scan a web app or node app for use of vulnerable JavaScript libraries and/or node modules. grunt-retire scans your grunt-enabled app for use of vulnerable JavaScript libraries and/or node modules. Scans visited sites for references to insecure libraries and puts warnings in the developer console. An icon on the address bar displays will also indicate if vulnerable libraries were loaded. Retire.js has been adapted as a plugin for the penetration testing tools Burp and OWASP ZAP. -
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Swing
A swipeable cards interface
Swing is a JavaScript library designed to create realistic swipeable card interfaces similar to those popularized by dating applications. It provides physics-based animations that simulate natural movement when users drag and release cards, enhancing user interaction and engagement. The library allows developers to build interfaces where elements can be swiped left, right, or in other directions, triggering specific actions. It is highly customizable, enabling control over thresholds, directions, and animation behavior. Swing is lightweight and framework-agnostic, making it easy to integrate into different web projects without heavy dependencies. It is commonly used for building interactive UI components such as recommendation systems or decision-based interfaces. Overall, swing offers a simple yet powerful way to implement gesture-driven interactions in web applications. -
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lodash
Modern JavaScript utility library delivering modularity & performance
A modern JavaScript utility library delivering modularity, performance & extras. Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc. Lodash’s modular methods are great for iterating arrays, objects, & strings, manipulating & testing values, and creating composite functions. Lodash is available in a variety of builds & module formats. Lodash is released under the MIT license & supports modern environments. Review the build differences & pick one that’s right for you. Lodash is available in a variety of builds & module formats. Tested in Chrome 74-75, Firefox 66-67, IE 11, Edge 18, Safari 11-12, & Node.js 8-12. -
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Apexcharts.js
Interactive JavaScript Charts built on SVG
A modern JavaScript charting library that allows you to build interactive data visualizations with simple API and 100+ ready-to-use samples. Packed with the features that you expect, ApexCharts includes over a dozen chart types that deliver beautiful, responsive visualizations in your apps and dashboards. ApexCharts is an MIT-licensed open-source project that can be used in commercial and non-commercial projects. You can create a combination of different charts, sync them and give your desired look with unlimited possibilities. Below is an example of synchronized charts with github style. Zoom, Pan, Scroll through data. Make selections and load other charts using those selections. An example showing some interactivity. Another approach to Drill down charts where one selection updates the data of other charts. Annotations allows you to write custom text on specific values or on axes values. Valuable to expand the visual appeal of your chart and make it more informative. -
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Earth Engine API
Python and JavaScript bindings for calling the Earth Engine API
The Earth Engine API provides Python and JavaScript client libraries for Google Earth Engine, a planetary-scale geospatial analysis platform. With it, users compose lazy, server-side computations over massive catalogs of satellite imagery and vector datasets without handling raw files locally. The API exposes functional operators for map algebra, reducers, joins, and machine learning that scale transparently on Earth Engine’s backend. Developers authenticate once, work interactively in notebooks or the Code Editor, and export results to Cloud Storage, Drive, or asset collections. Visualization helpers render tiled layers and charts so analysts can iterate quickly on workflows like land-cover mapping, change detection, or time-series analysis. By combining petabyte-scale data with concise functional transforms, the API turns complex remote-sensing pipelines into reproducible scripts that are easy to share. -
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Rollup
A module bundler for JavaScript
Rollup is a module bundler for JavaScript which compiles small pieces of code into something larger and more complex, such as a library or application. It uses the new standardized format for code modules included in the ES6 revision of JavaScript, instead of previous idiosyncratic solutions such as CommonJS and AMD. ES modules let you freely and seamlessly combine the most useful individual functions from your favorite libraries. This will eventually be possible natively everywhere, but Rollup lets you do it today. Rollup can be used either through a command line interface with an optional configuration file, or else through its JavaScript API. Rollup allows you to write your code using the new module system, and will then compile it back down to existing supported formats such as CommonJS modules, AMD modules, and IIFE-style scripts. This means that you get to write future-proof code. -
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Summernote
Super simple WYSIWYG editor
Simply download and attach your js, css with bootstrap. Customize by Initializing various options and modules. Summernote is licensed under MIT and maintained by the community. Integrate it with any back-end. 3rd parties available in django, rails, angular. Bootstrap uses certain HTML elements and CSS properties which require HTML5 doctype. Summernote uses the Open Source libraries jQuery and Bootstrap, if you are using the Boostrap 3 or 4 versions of Summernote, or just jQuery if you use the Lite version of Summernote. Summernote allows you to customize the toolbar. You can compose a toolbar with pre-shipped buttons. Air-mode give an interface without the Toolbar. To reveal popover Toolbar, select a text where you want to modify. Simply turn on airMode and just focus on text. Styles change according to Bootstraps Theme. The editor uses the Bootswatch Themes based on Bootstrap 3, you can also do the same with Bootstrap 4. -
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Yoast WordPress SEO
Yoast SEO for WordPress
The Yoast SEO plugin is the most popular SEO tool for WordPress, offering comprehensive tools to optimize content for search engines. It provides real-time page analysis, readability checks, and automated metadata handling to improve website visibility. -
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ARC-AGI
The Abstraction and Reasoning Corpus
ARC-AGI is a benchmark dataset and experimental framework designed to evaluate and advance artificial general intelligence by testing systems on abstract reasoning tasks that require human-like problem-solving abilities. It consists of a curated set of tasks where models must infer patterns from input-output examples and apply those rules to new unseen cases, without relying on memorization or prior training data. The dataset is structured as grid-based puzzles, where each task requires understanding transformations such as symmetry, counting, or spatial manipulation. Unlike traditional machine learning benchmarks, ARC emphasizes generalization and reasoning over statistical pattern recognition, making it particularly challenging for current AI systems. The repository also includes a browser-based interface that allows humans to attempt solving the tasks manually, providing a baseline for comparison. -
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Facebox
Facebook-style lightbox, built in jQuery
Facebox is a jQuery-based lightbox plugin designed to display content in a modal overlay on top of a webpage. It allows developers to present images, HTML content, or remote data in a visually appealing popup without navigating away from the current page. The plugin is inspired by early lightbox implementations and focuses on simplicity and ease of integration into existing web projects. It provides a clean user experience by dimming the background and highlighting the modal content, drawing attention to the displayed information. Facebox supports loading content via AJAX, making it useful for dynamic applications where content is fetched on demand. It also includes basic styling and animation effects to enhance usability and presentation. -
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Google Style Guides
Style guides for Google-originated open source projects
Google Styleguide is a comprehensive collection of coding style guides created and maintained by Google to ensure consistency, readability, and maintainability across its vast array of software projects. These guides define best practices and conventions for writing code in multiple programming languages, from C++ and Python to JavaScript, Go, and Swift. By adhering to these standards, developers can more easily collaborate, review code, and maintain high-quality software across teams and open source contributions. Each guide covers a wide range of topics, including naming conventions, file organization, indentation, documentation, and usage of specific language features. The repository also provides supplementary resources such as an Emacs configuration file for Google’s C++ style and references to related guidelines like Effective Dart and Kotlin Style Guide. -
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MatCaps
Huge library of matcap PNG textures organized by color
Matcaps is a comprehensive library of matcap (material capture) PNG textures organized by color, providing artists and developers with a wide range of materials for 3D modeling and rendering. Matcaps simplifies the process of applying consistent and realistic materials to 3D models, enhancing visual quality without the need for complex shader setups. -
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QuickChart
Chart image and QR code web API
Generate chart images with a simple, open API. Add charts to emails, reports, and anywhere else. Over 3 billion charts are rendered for users around the world. We're built on Chart.js, the most popular open-source charting library. We'll render any Chart.js configuration. Let's get creative! You can use all static customization options available in Chart.js. Visit our chart gallery to see different chart types and plugins: bar charts, line graphs, pie charts, and much more. QuickChart easily integrates with many no-code tools. Use our no-code chart maker to create custom chart templates that you can embed dynamically in spreadsheets, Airtable, Bubble, AppSheet, Thunkable, and many other no-code tools. Rendering at scale is difficult and resource intensive. We've put a lot of working into taking care of the most difficult parts so you can focus on building your application. -
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Zip.js
JavaScript library to zip and unzip files
Zip.js is a JavaScript library for creating, reading, and editing ZIP files directly in the browser or in Node.js environments, supporting various compression methods and encryption. -
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Cesium
An open-source JavaScript library for world-class 3D globes and maps
CesiumJS is an open source JavaScript library for creating world-class 3D globes and maps with the best possible performance, precision, visual quality, and ease of use. Developers across industries, from aerospace to smart cities to drones, use CesiumJS to create interactive web apps for sharing dynamic geospatial data. Built on open formats, CesiumJS is designed for robust interoperability and scaling for massive datasets. CesiumJS is released under the Apache 2.0 license and is free for both commercial and non-commercial use. With more than 1,000,000 downloads, CesiumJS powers apps that reach millions of users. We believe that collaboration is rooted in openness, and are committed to an open ecosystem. Stream, style, and interact with 3D buildings, photogrammetry, and point clouds using the 3D Tiles open specification. -
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Dexie.js
A Minimalistic Wrapper for IndexedDB
Dexie was written to be straightforward and easy to learn. If you've ever had to work with native IndexedDB then you'll certainly appreciate Dexie's concise API. What good is any development tool without great documentation? Dexie is thoroughly explained, and examples are available to help you on your way. Dexie has near-native performance. Its bulk operations utilize an often-overlooked feature in IndexedDB, ignoring success callbacks when possible. Offline databases are groovy! But without keeping the database in sync with a server, you're missing a great deal. Dexie.js solves these limitations and provides a neat database API. Dexie.js aims to be the first-hand choice of a IDB Wrapper Library due to its well thought-through API design, robust error handling, extendability, change tracking awareness and its extended KeyRange support (case insensitive search, set matches and or operations). -
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Everything Claude Code
Complete Claude Code configuration collection
Everything Claude Code is a community-driven collection of Claude Code skills, workflows, and examples that accelerate the adoption of Anthropic’s Claude models for real-world developer tasks, ranging from project scaffolding to code generation and testing automation. The repository curates reproducible templates that demonstrate how Claude Code agents can participate in end-to-end developer journeys such as building new features, adhering to coding standards, generating documentation, and automating refactor patterns. It also includes example orchestrations that showcase multi-step agent workflows, letting developers see how to compose small, discrete agent capabilities into productive, cohesive sequences. Because it is designed to be modular, individuals and teams can pull in only the skills they need, combine them with custom logic, or share their own extensions with the community. -
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Hiring Without Whiteboards
Companies that don't have a broken hiring process
Hiring-without-whiteboards is a curated list of companies and teams that avoid traditional "whiteboard" interviews, instead focusing on realistic and practical evaluation methods. In this context, "whiteboards" symbolizes outdated or unhelpful computer science trivia questions often criticized in technical interviews. The project highlights organizations that emphasize interviewing techniques more aligned with actual day-to-day work, such as collaborative problem-solving, pair programming, or take-home assignments. It encourages a shift away from brainteasers, riddles, or puzzle-based interviews, which can create unnecessary barriers for candidates. The repository not only provides a resource for job seekers looking for fairer interview processes but also offers guidance for companies seeking to improve their hiring practices. With community contributions, it continues to grow as a reference for employers and applicants who value practical, respectful, & effective technical evaluation. -
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Hotkeys JS
A robust Javascript library for capturing keyboard input
hotkeys-js is a tiny, framework-agnostic library for binding keyboard shortcuts in the browser, from simple key presses to complex combos and sequences. It provides a declarative API to register handlers like ctrl+k, shift+alt+p, or g g, and it normalizes key behavior across major browsers. The library includes scoping, so the same shortcut can trigger different actions depending on page context, and it offers filters to ignore inputs when the user is typing in form fields. You can enable or disable groups of shortcuts dynamically, making it well suited for SPAs and dashboard apps. Because it has no external dependencies and a small footprint, it drops easily into existing codebases. Its focus on developer ergonomics makes defining, managing, and cleaning up shortcuts straightforward.
