JavaScript Libraries and Tools Page 17 of 19

FlyonUI is designed to combine the best of both worlds: the aesthetic appeal of semantic classes and the powerful functionality of JS plugins.

This is Rakudo, a Raku Programming Language compiler for the MoarVM, JVM and Javascript virtual machines.

This free tool generates a random 16-character password for you. It does this with only JavaScript in your browser and does not save anything to our server.

winston is designed to be a simple and universal logging library with support for multiple transports. A transport is essentially a storage device for your logs. Each winston logger can have multiple transports (see: Transports) configured at different levels (see: Logging...

Headless, type-safe, composable tools for building modern web applications that work naturally for developers and reliably for agents.

Rslib is a library development tool that leverages the well-designed configurations and plugins of Rsbuild, empowering library developers to take advantage of the extensive knowledge and ecosystem of webpack and Rspack.

Vivus is a lightweight JavaScript class (with no dependencies) that allows you to animate SVGs, giving them the appearance of being drawn. There are a variety of different animations available, as well as the option to create a custom script to draw your SVG in whatever way you...

Customizable pivot grid that combines interactive data analysis with advanced grid capabilities for modern web applications.

Inline Documentation for RESTful web APIs.

Threlte is a Svelte library that simplifies creating 3D apps for the web. It provides a declarative, type-safe, reactive and interactive API out-of-the-box.

OpenUI5 is an open source JavaScript UI library, maintained by SAP and available under the Apache 2.0 license. OpenUI5 lets you build enterprise-ready web applications, responsive to all devices, running on almost any browser of your choice.

Angular apps, rendered as real native iOS and Android views, on React Native's Fabric renderer.

Runtime TypeScript and ESM support for Node.js.

A lightweight dependency-free select box replacement written in vanilla JavaScript. Similar to Select2 and Chosen without the dependencies.

Bits UI is a headless component library for Svelte focused on developer experience, accessibility, and full creative control. Use it to build high-quality, accessible UIs without giving up styling freedom or performance.

The fast, free, open-source technical SEO + GEO crawler — built for humans and agents.

Vezlo is an open-source AI Assistant SDK for SaaS applications. It transforms your codebase into an intelligent knowledge base with auto-generated documentation, semantic search, and a production-ready API server.

Free, local tool to track AI coding token usage and cost across 37 tools and agents (Claude Code, Cursor, Codex, Gemini and more), by model, project, and task. npx codeburn.

Material design calendar and date picker. React, Vue and plain JS components that make scheduling simple and elegant in your web project.

An advanced 3D Gaussian Splatting renderer for Three.js.

Datastar is a lightweight framework for building everything from simple sites to real-time collaborative web applications.

A lightweight Markdown editor library with perfect WYSIWYG alignment using an invisible textarea overlay technique. Includes optional toolbar. ~45KB minified with all features.

Slim advanced select dropdown.

Tiny experiment which generates a particle Sphere on HTML5 canvas .

Turn any Agent Skill (SKILL.md) into a callable API via POST /run. Multi-model, stateful, open source.