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  • 1
    big.js

    big.js

    Fast JavaScript library for arbitrary-precision decimal arithmetic

    ...Its API supports arithmetic, comparisons, powers, square roots, rounding, and common numeric formatting methods. Precision and rounding behavior can be configured for operations such as division. The library has no runtime dependencies and is only about 6 KB when minified. It supports browsers, Node.js, ES modules, CommonJS, and other JavaScript environments while keeping the API deliberately smaller than bignumber.js or decimal.js.
    Downloads: 10 This Week
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  • 2
    JerryScript

    JerryScript

    Ultra-lightweight JavaScript engine for the Internet of Things

    JerryScript is a lightweight JavaScript engine for resource-constrained devices such as microcontrollers. It can run on devices with less than 64 KB of RAM and less than 200 KB of flash memory.
    Downloads: 0 This Week
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  • 3
    LemonadeJS

    LemonadeJS

    LemonadeJS is a 7KB reactive JavaScript micro-library

    LemonadeJS is an ultra-lightweight, reactive JavaScript micro-library that makes building dynamic user interfaces simple and intuitive by providing two-way data binding and component reactivity without any external dependencies or build steps. At roughly 5–7 KB, it works directly in the browser or with bundlers like webpack, enabling developers to create reusable, reactive UI components using pure JavaScript, JSX, or TypeScript while avoiding heavy frameworks. Its core reactivity system tracks changes to component state and efficiently updates only the affected parts of the DOM, which improves performance for both small widgets and larger applications. ...
    Downloads: 0 This Week
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  • 4
    bignumber.js

    bignumber.js

    A JavaScript library for arbitrary-precision decimal arithmetic

    bignumber.js is a JavaScript library for arbitrary-precision decimal and non-decimal arithmetic. Faster, smaller, and perhaps easier to use than JavaScript versions of Java's BigDecimal. Replicates the toExponential, toFixed, toPrecision and toString methods of JavaScript's Number type. Includes a toFraction and a correctly-rounded squareRoot method. Supports cryptographically secure pseudo-random number generation. Wide platform compatibility, uses JavaScript 1.5 (ECMAScript 3) features...
    Downloads: 3 This Week
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    Train ML Models With SQL You Already Know

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    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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  • 5
    EXECA

    EXECA

    Process execution for humans

    ...Strips the final newline from the output so you don't have to do stdout.trim(). Supports shebang binaries cross-platform. Improved Windows support. Higher max buffer. 100 MB instead of 200 KB. Executes locally installed binaries by name. Cleans up spawned processes when the parent process dies. Get interleaved output from stdout and stderr similar to what is printed on the terminal. (Async only). Can specify file and arguments as a single string without a shell. More descriptive errors. Gracefully handle failures by using automatic retries and exponential backoff with the p-retry package.
    Downloads: 0 This Week
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  • 6
    Cabin

    Cabin

    Cabin is the best JavaScript and Node.js logging service and logging

    ...Express and Koa), request body handling packages (e.g. multer and body-parser), and the passport authentication framework. It supports Node v6.4+ and IE 10+ out of the box, and its browser-ready bundle is only 39 KB (minified and gzipped).
    Downloads: 0 This Week
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  • 7
    Preact

    Preact

    Fast 3kB React alternative with the same modern API

    Preact is a lightweight alternative to React that implements the same core component and hooks model in a tiny footprint. It provides a virtual DOM, diffing, and a familiar Component/JSX API, enabling developers to reuse much of their React knowledge. With preact/compat, many React libraries can be used directly, making migration or code sharing practical in performance-sensitive apps. Its focus on size and speed makes it attractive for embedded widgets, mobile web, and scenarios where...
    Downloads: 0 This Week
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  • 8
    LombokCharts

    LombokCharts

    Canvas and SVG renderers, LTTB decimation,real-time streaming layer

    LombokCharts A zero-dependency charting library for the browser. It pairs a small grammar-of-graphics core (Data → Scale → Mark) with pluggable Canvas and SVG renderers, LTTB decimation, and a real-time streaming layer — so the same API draws a five-point bar chart or a five-million-point line without changing shape.
    Downloads: 0 This Week
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  • 9
    LazyLoad

    LazyLoad

    LazyLoad is a lightweight, flexible script that speeds up your website

    LazyLoad is a fast, lightweight and flexible script that speeds up your web application by loading images only as they enter the viewport. LazyLoad supports responsive images. LazyLoad is a lightweight (2.4 kB) and flexible script that speeds up your web application by deferring the loading of your below-the-fold images, animated SVGs, videos and iframes to when they will enter the viewport. It’s written in plain “vanilla” JavaScript, it leverages the IntersectionObserver API, it supports responsive images, it optimizes your website for slower connections, and can enable native lazy loading. ...
    Downloads: 0 This Week
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    Ship Agents Faster

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  • 10
    Atropos

    Atropos

    Stunning touch-friendly 3D parallax hover effects

    ...It works not only with vanilla JavaScript, but also provides integrations or support for modern frameworks (React, Vue, Web Components, etc.), making it easy to incorporate into a variety of web projects. Because Atropos is very small (just ~2 KB minified + gzipped) and has zero dependencies, it's ideal for performance-conscious applications and does not bloat bundle size. Developers can customize parameters — for example, perspective, rotation, scale, and responsiveness to pointer/touch events — to fine-tune how elements respond to user interaction.
    Downloads: 0 This Week
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  • 11
    Leaflet

    Leaflet

    Open-source JavaScript library for mobile-friendly interactive maps

    Leaflet is a leading open source JavaScript library for creating interactive, mobile-friendly maps. Leaflet is light at just about 38 KB, but is already fully equipped with all the mapping features you could need. Leaflet is simple but efficient. It doesn’t try to do everything for everybody, rather it focuses on making the basic things work perfectly. It comes ready with exceptional layering tools, customization features such as pure CSS3 popups and controls, map controls and more right out of the box, and works on all major desktop and mobile platforms. ...
    Downloads: 11 This Week
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  • 12
    screenfull

    screenfull

    Wrapper for cross-browser usage of the JavaScript Fullscreen API

    ...Applications can request fullscreen, exit it, toggle it, inspect the active fullscreen element, and check whether fullscreen is available. It also exposes fullscreen change and error events for reactive interfaces. Screenfull is distributed as an ESM package, is only about 0.7 kB when gzipped, and is considered feature complete. It does not support fullscreen operation on iPhone.
    Downloads: 15 This Week
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  • 13
    Superfine

    Superfine

    Absolutely minimal view layer for building web interfaces

    Superfine is a minimal view layer for building web interfaces. Think Hyperapp without the framework—no state machines, effects, or subscriptions, just the absolute bare minimum (1 kB minified+gzipped). Mix it with your favorite state management library or use it standalone for maximum flexibility. When describing how a page looks in Superfine, we don't write markup. Instead, we use the h() and text() functions to create a lightweight representation of the DOM (or virtual DOM for short), and patch() to actually render the DOM. ...
    Downloads: 0 This Week
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  • 14
    Vue Lit

    Vue Lit

    Proof of concept custom elements "framework"

    Vue Lit is a small proof-of-concept framework combining Vue’s reactivity system with lit-html and native Web Components. Its implementation is only about 70 lines of framework code, with the two main dependencies totaling roughly 6 KB when compressed. The API closely resembles Vue’s Composition API while producing browser-native custom elements underneath. Components can declare reactive state, accept properties, and return lit-html templates for rendering. Lifecycle helpers cover mounting, updating, and unmounting behavior. Components can be nested like ordinary custom HTML elements while retaining reactive updates. ...
    Downloads: 2 This Week
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  • 15
    DropCSS

    DropCSS

    An exceptionally fast, thorough and tiny unused-CSS cleaner

    DropCSS takes your HTML and CSS as input and returns only the used CSS as output. Its custom HTML and CSS parsers are highly optimized for the 99% use case and thus avoid the overhead of handling malformed markup or stylesheets, so well-formed input is required. There is minimal handling for complex escaping rules, so there will always exist cases of valid input that cannot be processed by DropCSS; for these infrequent cases, please start a discussion. While the HTML spec allows html, head,...
    Downloads: 0 This Week
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  • 16
    Hyperapp

    Hyperapp

    Tiny framework for building hypertext applications

    ...Write what, not how—With a declarative API that's easy to read and fun to write, Hyperapp is the best way to build purely functional, feature-rich, browser-based apps in JavaScript. Smaller than a favicon—1 kB, give or take. Hyperapp is an ultra-lightweight Virtual DOM, highly-optimized diff algorithm, and state management library obsessed with minimalism. Official packages provide access to The Web Platform, and ensure that the APIs are exposed in a way that makes sense for Hyperapp, and the underlying code is stable. We already cover a decent amount of features, but you can always create your own effects and subscriptions if something is not available yet.
    Downloads: 0 This Week
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  • 17
    FKit

    FKit

    A functional programming toolkit for JavaScript

    FKit (pronounced eff-kit) is a functional programming toolkit for JavaScript. It provides many functions for solving common problems with functions, objects, arrays, and strings. It aims to provide reusable building blocks while maintaining a laser focus on everyday utility.
    Downloads: 1 This Week
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  • 18
    canvas-nest.js
    A nest background of website draw on canvas. It does not depend on jQuery and the original javascript is used. Small size, only 2 Kb. Easy to implement, simple configuration. You do not have to be a web developer to use it. Modularized with area rendering.
    Downloads: 0 This Week
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  • 19
    yo-yo.js

    yo-yo.js

    A tiny library for building modular UI components using DOM diffing

    yo-yo is a tiny, modular JavaScript library for building UI components by combining template literals with efficient DOM diffing. The core idea behind yo-yo is to enable developers to write modular, dynamic views using ES6 tagged template syntax, then update those views by intelligently diffing and morphing the real DOM rather than re-rendering everything. It’s inspired by patterns found in larger UI frameworks but stays extremely lightweight—only a few kilobytes when minified and gzipped—by...
    Downloads: 0 This Week
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  • 20
    Slideout.js

    Slideout.js

    A touch slideout navigation menu for your mobile web apps

    Implementing Slideout.js into your project is easy. Slideout is available on cdnjs. Also you can use one of many package managers. First of all, you'll need to create your markup. You should have a menu (#menu) and a main content (#panel) into your body. Add the Slideout.js styles (index.css) in your web application. Then you just include Slideout.js, create a new instance with some options and call the toggle method. Supports Chrome (IOS, Android, desktop), Firefox (Android, desktop),...
    Downloads: 0 This Week
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  • 21
    tracking.js

    tracking.js

    A modern approach for Computer Vision on the web

    The tracking.js library brings different computer vision algorithms and techniques into the browser environment. By using modern HTML5 specifications, we enable you to do real-time color tracking, face detection and much more, all that with a lightweight core (~7 KB) and intuitive interface. To get started, download the project. This project includes all of the tracking.js examples, source code dependencies you'll need to get started. Unzip the project somewhere on your local drive. The package includes an initial version of the project you'll be working with. While you're working, you'll need a basic HTTP server to serve your pages. ...
    Downloads: 0 This Week
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  • 22
    Sprint.js

    Sprint.js

    A tiny, lightning fast jQuery-like library for modern browsers

    Sprint is a lightweight DOM manipulation library that provides a familiar jQuery-style interface for modern browsers. Its compressed footprint is about 5 KB, making it useful where bandwidth and JavaScript parsing costs matter. The library exposes a chainable API for selecting elements, changing classes and attributes, manipulating content, traversing the DOM, and handling events. Most method names intentionally mirror jQuery so developers familiar with that library can adapt quickly. ...
    Downloads: 2 This Week
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  • 23
    wow jquery dialog
    wow jquery dialog is a lightweight jQuery dialog (alert, confirm). It it less < 1Kb !!!!! -- Project goals: -- 1) really lightweight: it don't exceed 1 kb!!! (minified javascript code) 2) easy to use 3) beautiful 4) open source Show demo: http://wowjquerydialog.sourceforge.net/tests/more.html Note: require jQuery library (http://jquery.com/)
    Downloads: 0 This Week
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  • 24
    LiveMenu
    LiveMenu is a free multilevel drop-down like menu script, which allows you to create dynamic javascript web menus with only basic knowledge of html and css. It is highly-customizable, easy to use and supports a number of effects: slide, fade etc.
    Downloads: 0 This Week
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