JavaScript Libraries and Tools Page 11 of 16

JavaScript heart-rate monitor using getUserMedia.

A lightweight and elegant React full calendar (or React-big-calendar) component for the web, easily integrated with shadcn-ui or any Tailwind-based UI library.

A simple way to traverse datasets based on JSON API specification. Normalize is a lightweight javascript library with simple and powerful api. Has no dependencies and weighs less than 1KB.

Javascript constraint-based graph layout.

talkDOM is a lightweight, zero-dependency JavaScript library that brings the elegance and power of Smalltalk-style message passing directly to the browser DOM.

A lightweight onboarding library for Next.js applications. Create engaging, interactive product tours with ease.

RFI-safe file uploads for Node.js — Express/Koa/Next.js middleware with deep ZIP inspection, MIME/size checks, and optional YARA scanning.

WebSocket cat.

PDFSlick is a library that enables viewing of and interaction with PDF documents in React and SolidJS apps. It's build on top of Mozilla's PDF.js, and utilises Zustand to provide a reactive state for the loaded documents.

Increase business agility, innovate across new business models. Build your commerce architecture of the future with the most flexible commerce API solution.

Chili Search replaces the WordPress default search with a lightning fast, full-ajax and accurate search.

svgo-ll is a Node.js library and command-line application for optimizing SVG files, evolved from the SVGO package. svgo-ll is focused on lossless optimization and compression.

LISN.js is a flexible, full-featured and simple to use library for handling user gestures and interactions (like scrolling) as well as observing elements for changes in viewport position, size and so on.

A git-native, framework-agnostic, open standard for defining AI agents. Version-controlled config that exports to Claude Code, OpenClaw, Lyzr Agent, Chimera, NanoBot, CrewAgent, and Agents SDK.

SilentDock turns your database into an instant CMS you can give to clients — no backend setup or custom admin panels required.

Share real-time progress from any process, anywhere. Works in browsers, terminals, and your favorite programming languages.

Simple syntax highlighting library written in JavaScript.

ScrapingBytes enables developers to easily scrape websites. Our service is capable of rendering Javascript websites, including single-page applications. We handle headless browsers, rotating proxies (residential, mobile, and datacenter), and more.

PDF-LIB is a JavaScript library to let you create and modify PDF documents in any JavaScript environment. Create documents from scratch, or modify existing PDF documents. Draw text, images, and vector graphics. Even embed your own fonts.

Almost every large SPA or project involves date and time input. Browser's native implementations of those are inconsistent and limited in functionality. Most other libraries require you to pull in heavy dependencies like jQuery, Bootstrap, and moment.js.

Matter.js is 2D rigid body physics engine for the web, using JavaScript and HTML5.

Hoss helps teams make better API-driven products by tracking and managing the APIs they consume. The average team uses close to 20 third-party APIs to power important parts of their applications, and half of all B2B collaboration occurs via an API - but API integrations come...

A TypeScript/JavaScript library for quickly building performant declarative user interfaces without the use of a virtual DOM.

Skylink API offers comprehensive aviation data, including real-time flight tracking, weather, and airport information. It's a developer-friendly service providing structured data for various applications like flight tracking and pilot tools.

A fast Rsbuild-based static site generator.