Client & Server Utilities

JavaScript's functional programming helper library.

This package contains simple utility functions to use with [React Router](https://reactrouter.com/).

Session Traversal Utilities for NAT (STUN) client and server.

A toolkit for deep structure manipulations, provides deep merge/clone functionality out of the box, and exposes hooks and custom adapters for more control and greater flexibility.

A Transducers implementation for JavaScript

Collect ordered React render data seamlessly across the server and client.

IIIF Presentation API utility library for client and server

ServiceStack's TypeScript library providing convenience utilities in developing web apps. Integrates with ServiceStack's Server features including ServiceClient, Server Events, Error Handling and Validation

Simple format method for String

A client-side utility class that can call server-side Google Apps Script functions

Icelandic social security number (kennitölur) utilities for servers and clients

Opinionated MCP Framework for TypeScript (@modelcontextprotocol/sdk compatible) - Build MCP Agents and Clients + MCP Servers with support for MCP-UI.

Utility functions to convert SVGs into different formats (Base64, Blob, Data URI, raster images). Works in client and server with optimal performance.

A utility for safely getting properties from the window object in projects that render on both the server and the client.

Modbus RTU over Web Serial and Node.js SerialPort

A JavaScript library for creating and manipulating hierarchical tree structures.

Kurento JavaScript Utilities

A testing utility for Model Context Protocol (MCP) servers

Icelandic social security number (kennitölur) utilities for servers and clients

Shared request state between server and client

Native object expansion library

Make your Nanostores concurrent safe and shared from server to client

Session Traversal Utilities for NAT (STUN) client and server.

Utility library dealing with prefectures and regions in Japan.

A lightweight utility for retrieving HTTP status codes, names, and descriptions. Easily validate, categorize, and manage HTTP responses with built-in methods for informational, success, redirection, client, and server error codes.

Lifecycle.js provides conventions and helpers to manage the life cycles of Javascript instances.

Manage your cookies on client and server side (Angular Universal)

JSON-RPC 2.0 client and server utilities

A Next.js integration package for FlowGlad, providing utilities and components for both client and server-side functionality.

📍 A Lightweight Utility for Extracting the Real Client IP Address from Incoming HTTP Requests

An opinionated StatsD client for Shopify Node.js servers and other StatsD utilities

Set of utility methods for common operations

utility for testing times component clients with mocked api

Javascript utils for server and client projects

Utilities for working with assets and import maps on an Eik server

Server and client for tcp sockets

A lightweight, and docile, JavaScript library to help embracing functional programming.

Python like utility functions for JS: `range`, `enumerate`, `zip` and `items`.

Utilities for working with ArcGIS portal and server.

verse.db isn't just a database, it's your universal data bridge. Designed for unmatched flexibility, security, and performance, verse.db empowers you to manage your data with ease.

Official server-side SDK for AuthNest.Provides simple Node.js utilities to integrate secure authentication, user registration, and account management via the AuthNest API..

Generates a function that is called with initially supplied arguments

JSON-Serialize.js provides conventions and helpers to manage serialization and deserialization of instances to/from JSON.

Common utilities for tsgrpc server and client

javaScript's functional programming helper library for ES6 and beyond.

JavaScript Canvas based imagediff utility.

A small JavaScript library for arguments assertion

React hooks for data fetching

A validation library for both the browser and Node.js

A tiny, zero-dependency utility for environment detection in JavaScript.