JavaScript Libraries and Tools Page 12 of 18

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.

ReleaseJet — the release notes tool for repos with many customers (and for teams that never adopted Conventional Commits).

The library for faithful browser automation. High-fidelity fingerprinting for Bun, engineered for consistency and transparency.

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.

A .docx CLI built for AI agents. Leave comments, suggest redlines, and edit Word documents without breaking the formatting or losing content — a human accepts or rejects in Word afterward.

Analyze coding (agent) CLI token usage and costs from local data.

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.

A terminal BitTorrent client for focused download management. Add .torrent files, track active transfers, and manage sessions from a clean keyboard-driven interface.

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.

Free, embeddable tip-QR web component. One line of HTML adds a branded QR + method picker that deep-links to your own crypto wallets (BIP-21) and payment links (PayPal, Cash App, Venmo, Ko-fi). No account, no custody, no fees — nothing leaves the browser. MIT, open source.