JavaScript Libraries and Tools Page 19 of 19

Kefir — is a Reactive Programming library for JavaScript inspired by Bacon.js and RxJS, with focus on high performance and low memory usage.

Rsdoctor is a build analyzer tailored for the Rspack ecosystem and fully compatible with the webpack ecosystem.

Drop one web component into your SaaS and give users a full drag-and-drop email editor. Framework-agnostic, white-label ready.

µJS intercepts links and form submissions, fetches pages via AJAX, and swaps fragments of the DOM. Single <script> tag, one call to mu.init(). No build step, no dependencies.

A unified logger that routes logs to various logging libraries and cloud providers while providing a fluent API for specifying log messages, metadata and errors.

Share and run snippets inside a web browser.

Rslint is a high-performance JavaScript and TypeScript linter written in Go. It offers strong compatibility with the ESLint and TypeScript-ESLint ecosystem, allowing for seamless replacement, and provides lightning-fast linting speeds.

Signal-Powered Breakpoints & Media Queries.

Hypertune is the most flexible platform for feature flags, A/B testing, analytics and app configuration. Built with full end-to-end type-safety, Git-style version control and synchronous, in-memory, local flag evaluation.

React Rich Text Editor is a UI component built completely in React that is meant to be a full-featured textarea replacement. It's based on the excellent, open source Draft.js from Facebook which is performant and production-tested.