Open Source JavaScript Software - Page 72
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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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koa-log4js
log4js-node supports Koa-middleware
A wrapper for log4js-node which supports Koa logger middleware. Log message is forked from the Express (Connect) logger file. This branch is used for Koa v2.x. To use Koa v0.x & v1.x, please check the master branch. -
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koa-react-router
React-router middleware for koa 2
koa 2 middleware for React server-side rendering and routing with react-router 5. -
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koa-session-mongoose
Mongoose store for Koa sessions
Mongoose storage layer for koa-session. -
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lax.js
Library to create smooth & beautiful animations when you scroll
Simple & lightweight (<4kb gzipped) vanilla JavaScript library to create smooth & beautiful animations when you scroll. Lax.js 2.0 has been completely re-written with a focus on modularity and flexibility giving you more tools to create awesome animations. To implement lax you need to create at least one driver, to provide values for animations, as well as the element animation bindings. The easiest way to get started is to use presets via html classes. Multiple presets can be chained together and they can be customised to suit your needs. Use the preset explorer to explore effects and see a simple example here. To increase performance, lax.js indexes the list of elements to animate when the page loads. If you're using a library like React, Vue or EmberJS, it is likely that you are adding elements after the initial window.onload. Because of this you will need to call lax.addElements when you add components to the DOM that you want to animate. -
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layer
Web pop-up layer components to realize almost all pop-up interactions
layer is a web pop-up layer component that has always been favored. It has a full range of solutions and is aimed at developers of all levels. Your page will easily have a rich and friendly operating experience. In comparison with similar components, layer will be more accessible for developers. It is not only based on "face" to win, but tries to show more robust functions with less code as much as possible, and pays special attention to performance improvement, ease of use and practicality. The layer is even compatible with IE6. All major browsers. With a considerable number of basic attributes and methods, you can customize as many styles as you need. Each shell mode has its own characteristics and is very popular. Of course, this kind of statement always sounds a bit uncomfortable, so you need to know more about whether this tool really does what you want. -
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lazysizes
High performance and SEO friendly lazy loader for images
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration. It may become also your number one tool to integrate responsive images. It can automatically calculate the sizes attribute for your responsive images, it allows you to share media queries for your media attributes with your CSS, helping to separate layout (CSS) from content/structure (HTML) and it makes integrating responsive images into any environment really simple. It also includes a set of optional plugins to further extend its functionality. Lazysizes is built upon the Responsive image standard and extends it with additional functionality. For full cross browser responsive image support you must use either a full polyfill like picturefill or use the extreme lightweight partial respimg polyfill plugin or the responsive image on demand plugin. -
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levelup
A wrapper for abstract-leveldown compliant stores, for Node.js
Fast and simple storage. A Node.js wrapper for abstract-leveldown compliant stores, which follow the characteristics of LevelDB. LevelDB is a simple key-value store built by Google. It's used in Google Chrome and many other products. LevelDB supports arbitrary byte arrays as both keys and values, singular get, put and delete operations, batched put and delete, bi-directional iterators and simple compression using the very fast Snappy algorithm. LevelDB stores entries sorted lexicographically by keys. This makes the streaming interface of levelup - which exposes LevelDB iterators as Readable Streams, a very powerful query mechanism. The most common store is leveldown which provides a pure C++ binding to LevelDB. Many alternative stores are available such as level.js in the browser or memdown for an in-memory store. They typically support strings and Buffers for both keys and values. For a richer set of data types you can wrap the store with encoding-down. -
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lightgallery.js
Full featured JavaScript image & video gallery
lightgallery.js uses CSS-only approach for resizing images and videos. So it will be extremely flexible, and considerably faster than using the JavaScript approach. lightgallery.js comes with a few built in modules, such as thumbnails, full screen, zoom, etc. It is easy to create your own modules, as well as detach modules that you don't want to use. lightgallery.js supports touch and swipe navigation on touchscreen devices, as well as mouse drag for desktops. This allows users to navigate between slides by either swipe or mouse drag. lightgallery.js comes with a numerous number of options, which allow you to customize the plugin very easily. You can easily customize the look and feel of the gallery by updating SASS variables. You also have the option to enable animated thumbnails from the settings. otherwise normal thumbnail will be used. You can also make thumbnails automatically load for your YouTube or Vimeo videos. -
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lmdb-js
Simple, efficient, ultra-fast, scalable data store wrapper for LMDB
This is an ultra-fast NodeJS, Bun, and Deno interface to LMDB; probably the fastest and most efficient key-value/database interface that exists for storage and retrieval of structured JS data (objects, arrays, etc.) in a true persisted, scalable, ACID compliant database. It provides a simple interface for interacting with LMDB, as a key-value db, which makes it easy to fully leverage the power, crash-proof design, and efficiency of LMDB using intuitive JavaScript, and is designed to scale across multiple processes or threads. Several key features make it idiomatic, highly performant, and easy to use LMDB efficiently. -
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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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lottery
Annual Meeting Lottery Procedure
lottery is a browser-based lottery drawing program designed for company annual meetings and event prize draws. It gives organizers a visual way to select winners from a participant pool. The workflow lets users choose a draw size, start the lottery animation, and stop it to generate the final results. It supports draw sizes such as 30, 10, 5, 2, or 1 winner at a time. After a participant wins, the app marks that person so they are not selected again in later rounds. It also includes an interactive sphere-style display that can be zoomed in or out with the mouse wheel, making it feel more dynamic for live events. -
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magic-string
Manipulate strings like a wizard
magic-string is a small JavaScript utility for editing strings while preserving accurate source maps. It is designed for compilers, bundlers, preprocessors, and code transformation tools that need to rewrite source code safely. The library lets developers overwrite, append, prepend, remove, move, and slice sections of text without losing track of where transformed content came from. This makes it especially useful when generated output still needs to map back to the original source for debugging. Magic String works in both Node.js and browser environments. Its main value is making code manipulation precise, fast, and source-map-friendly for build tools and language tooling. -
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mathjs
An extensive math library for JavaScript and Node.js
mathjs is a comprehensive mathematics library for JavaScript and Node.js that provides advanced numerical, symbolic, and matrix computation capabilities through a flexible expression-based interface. The library supports a wide range of mathematical operations including algebra, statistics, complex numbers, fractions, units, matrices, and symbolic manipulation while maintaining compatibility across browsers and server environments. One of its defining features is its expression parser, which allows users to evaluate and manipulate mathematical expressions written in a natural math-like syntax. mathjs is highly modular, enabling developers to include only the functionality they need for optimized application size and performance. The project is widely used in scientific computing, educational software, calculators, engineering tools, and data analysis applications. Its architecture combines accessibility for beginners. -
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meta
Tool for turning many repos into a meta repo
Tool for turning many repos into a meta repo. why choose many repos or a monolithic repo, when you can have both with a meta repo? meta is powered by plugins that wrap common commands, letting you execute them against some or all of the repos in your solution at once. meta is built on loop, and as such inherits loops ability to easily target a particular set of directories for executing a common command (eg meta git status --include-only dir1,dir2. See loop for more available options). meta is a tool for managing multi-project systems and libraries. It answers the conundrum of choosing between a mono repo or many repos by saying "both", with a meta repo! Give every engineer on your team the same project setup, regardless of where it's cloned. Execute arbitrary commands against many repos to manage your projects. Easily wrap commands for working with any platform, not just Node! -
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morgan
HTTP request logger middleware for node.js
This is a Node.js module available through the npm registry. Installation is done using the npm install command. Create a new morgan logger middleware function using the given format and options. The format argument may be a string of a predefined name, a string of a format string, or a function that will produce a log entry. The format function will be called with three arguments tokens, req, and res, where tokens is an object with all defined tokens, req is the HTTP request and res is the HTTP response. The function is expected to return a string that will be the log line, or undefined / null to skip logging. Write log line on request instead of response. This means that a requests will be logged even if the server crashes, but data from the response (like the response code, content length, etc.) cannot be logged. To define a token, simply invoke morgan.token() with the name and a callback function. -
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mui
High-performance framework closest to native APP experience
The gap between performance and experience has always been the primary reason for mobile app developers to abandon HTML5. The browser’s natural page-cutting white screen, the unbearable turning animation, the jittering of floating elements, and the inability to pull down to refresh smoothly, all of which frustrate HTML5 developers, especially when they get a low-end Android machine to run, and the phone falls. On the other hand, the browser default control styles are few and ugly, making a beautiful control is very troublesome, and there are some simple UI frameworks but low performance. The mui framework effectively solves these problems. This is a framework that can facilitate the development of high-performance apps, and it is also the framework that is closest to the effect of native apps. -
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node-emoji
Simple emoji support for node.js projects
A simple emoji support for node.js projects. To install node-emoji, you need node.js and npm. Once you have that set-up, just run npm install --save node-emoji in your project directory. You're now ready to use emoji in your node projects! There are some emojis that have "-" in their name, for example "t-rex" and refrencing them directly like this (emoji.t-rex) won't work. In such cases, use the emoji.get('t-rex') syntax instead. To update the list or add custom emoji, clone this repository and put them into lib/emojifile.js. Then run npm run-script emojiparse in the project directory or node emojiparse in the lib directory. This should generate the new emoji.json file and output Done. -
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node-hid
Access USB & Bluetooth HID devices through Node.js
node-hid supports Node.js v6 and upwards. For versions before that, you will need to build from source. The platforms, architectures and node versions node-hid supports are the following. In general we try to provide pre-built native library binaries for the most common platforms, Node and Electron versions. We strive to make node-hid cross-platform so there's a good chance any combination not listed here will compile and work. We are using prebuild to compile and post binaries of the library for most common use cases (Linux, MacOS, Windows on standard processor platforms). If a prebuild is not available, node-hid will work, but npm install node-hid will compile the binary when you install. In the src/ directory, various JavaScript programs can be found that talk to specific devices in some way. -
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node-rate-limiter-flexible
Count and limit requests by key with atomic increments
rate-limiter-flexible counts and limits number of actions by key and protects from DDoS and brute force attacks at any scale. It works with Redis, process Memory, Cluster or PM2, Memcached, MongoDB, MySQL, PostgreSQL and allows to control of requests rate in single process or distributed environment. All operations in memory or distributed environments use atomic increments against race conditions. Combine limiters, block key for some duration, delay actions, manage failover with insurance options, configure smart key blocking in memory and many others. Average request takes 0.7ms in Cluster and 2.5ms in a Distributed application. See benchmarks. It provides a unified API for all limiters. Whenever your application grows, it is ready. Prepare your limiters in minutes. No matter which node package you prefer: redis or ioredis, sequelize/typeorm or knex, memcached, native driver or mongoose. It works with all of them. -
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node.js-clean-architecture
A use case of Clean Architecture in Node.js comprising of Express.js
node.js-clean-architecture is a reference implementation that demonstrates how to structure Node.js applications using Clean Architecture principles. It separates concerns into distinct layers such as domain, application, infrastructure, and presentation, ensuring that business logic remains independent of external frameworks and technologies. The project is designed to improve maintainability, scalability, and testability by enforcing clear boundaries between components. It provides practical examples of dependency injection, use cases, and repository patterns, helping developers understand how to apply theoretical concepts in real-world applications. The structure allows teams to adapt or replace technologies without affecting core logic, which is essential for long-term projects. It also includes testing strategies that align with the architecture, ensuring that each layer can be validated independently. -
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nodemon
Reload your Node.js application automatically
nodemon is a utility that monitors your Node.js application for any changes and once it does detect changes, automatically restarts your server. This makes it ideal for development, as it conveniently restarts your process automatically when your code changes. There's no need for any additional changes to your code or method of development. Simply use nodemon instead of node to run your code. nodemon is a replacement wrapper for node, wrapping your application so you can pass all the arguments you would normally pass to your app. Installing and using nodemon is easy. Even if you need to manually restart your application, you can simply type rs with a carriage return, and nodemon will restart your process. -
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objection-authorize
isomorphic, "magical" authorization integration with Objection.js
This plugin automatically takes away a lot of the manual wiring that you'd need to do if you were to implement your access control on a request/route level. -
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openGym
A self-hosted gym & body-weight tracker you actually own
openGym is a self-hosted workout and body-weight tracking application designed to keep fitness data under the user's control. It lets users build weekly routines, launch guided workouts, record sets, and track body weight over time. Its exercise library contains searchable movements with animated demonstrations and support for strength, bodyweight, timed, and cardio exercises. Workout sessions can preload previous weights, detect personal records, run rest timers, and apply configurable progression rules. The application supports passkey authentication, offline use, cross-device synchronization, and installation as a home-screen app. Deployment is designed to be straightforward through Docker Compose without subscriptions, advertisements, or dependence on an external fitness service. -
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owllook
Vertical novel search engine with unified reading and tracking tools
Owllook is an open source vertical search engine designed for discovering and reading online novels from multiple sources. Instead of redirecting users to different sites, the system parses content from many novel platforms and presents it in a unified reading interface. It focuses on providing a simple and comfortable reading experience with features such as searching for books, following updates, bookmarking chapters, and maintaining a personal bookshelf. It aggregates results from multiple search engines and applies parsing rules to extract novel metadata, chapters, and content in a consistent format. Owllook also includes functionality for tracking reading history, displaying rankings based on search activity, and recommending books using a similarity-based approach. Owllook is built using asynchronous technologies to support efficient data retrieval and responsive interactions while reading or searching. -
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page.js
Micro client-side router inspired by the Express router
There are multiple ways to install page.js. With package managers. Setup redirect from one path to another. Calling page.redirect with only a string as the first parameter redirects to another route. Waits for the current route to push state and after replaces it with the new one leaving the browser history clean. If you're doing selective binding you'll like want to pass { click: false } to specify this yourself. Exit routes are called when a page changes, using the context from the previous change. Create a new page instance with the given options. Use this if you need to control multiple windows (like iframes or popups) in addition to the main window. The router uses the same string-to-regexp conversion that Express does, so things like ":id", ":id?", and "*" work as you might expect.