JavaScript packages

Advanced PostgreSQL JSON query builder for Prisma with support for JSON paths, wildcards, and complex filters

Check if a program is installed.

Integrate the JS standard to your Mocha tests

DatePicker and DatePickerInput to be used with React

Effects to enhance your three.js scene's realism

Configurable string templating, without separators.

Text component for Rax.

SVG icon component for vue

Gulp plugin allow modify file in .pipe

🌯 🌯 Wrap you tests so that you can test both behaviour and components with less effort.

Your on-ramp to web3 multichain. AppKit is a versatile library that makes it super easy to connect users with your Dapp and start interacting with the blockchain.

An NPM module for mocking a connection to a PostgreSQL database.

Creates typebox code from JSON schemas

Yandex Maps on-demand promise-based widget loader

Aggregated, deduped, normalized list of disposable / temporary email domains, with an isDisposable() helper. Auto-refreshed daily.

Node integration library for Zencoder

Concurrent control of functions on a per-pool basis with async/await

Google Play scraper for Node.js with a fully typed TypeScript API. Fetch app details, search results, top charts, reviews, permissions and data safety from the Play Store.

Just another simple, fast, and resilient open-source WebSockets server.

Real PDF 1.4 blend modes for jsPDF and svg2pdf.js — Multiply, Screen, Overlay, … and round-tripping CSS mix-blend-mode from SVG.

Stream file uploads, downloads, and transloads to and from S3. Plus some other utilities like `rm` and `ls`.

Russian localization for DeepSeek Harness (DSH v0.1.7-rc.1+) web UI: adds Русский as native language option. 100.0% coverage across 11,295 keys (127 namespaces). Features full DSH v0.1.7-rc.1 core support (terminal, archive, command palette, Auto review,

progressbar interactions for twitter bootstrap 2 & 3

Prepend local Solidity source files with an SPDX License Identifier

React component to animate elements on scroll with [animate.css](https://daneden.github.io/animate.css/). This library is re-implementation of [dbramwell/react-animate-on-scroll](https://github.com/dbramwell/react-animate-on-scroll). Re-implemented the ol

Enforce schema on JavaScript objects, including type, transformation, and validation. Supports extends, sub-schemas, and arrays.

A tiny (725 bytes) router for Nano Stores state manager

Hash functions for bitcoin and other cryptocurrencies

expressNakedRedirect is a middleware for Express that redirects naked(root domain) request to www or its reverse.

Pure JavaScript implementation of Google's FarmHash - compatible with farmhash v3.x and v5.x

Lint your CoffeeScript using gulp and CoffeeLint

Facebook SDK bindings for Angular applications

WCAG 2.0 AA contrast checker for DOM elements

A Svelte store that keep its value through pages and reloads

Output Solidity contract sizes with Hardhat

Generate a webmanifest and icons for Astro to make progressive web apps

Add advanced CLI behavior to your NodeJS program with Culinary!

Arguably the most comprehensive library for stringifying any JavaScript value into a human-readable format, handling nearly every scenario you might encounter.

Convert Markdown to PDF using a self-contained Rust binary

Copyright (c) 2011-2018 Alexander Dickson [@alexdickson](http://twitter.com/alexdickson)

An easy to understand and nestable layout system, React Spaces allow you to divide a page or container into anchored, scrollable and resizable spaces enabling you to build desktop type user interfaces in the browser.

A CLI to run all kinds of code quality measurements to align your team with company goals

Get aliases for your lerna packages for the other tools

MQTT broker as a module

Coordinate transformation functions

Manages the creation and deployment of web tool geoprocessing service item type for @esri/solution.js.

Fireblocks-based signer for Solana transactions

Git-rev-based HRE execution

Anyray connect — points local coding tools (Claude Code, Cursor, Windsurf, SDKs) at the Anyray gateway through supported configuration and enrolled personal authentication.

A reference implementation of a CommonJS module loader for Etherpad.