Simple worker threads pool using Node's worker_threads module. Compatible with ES6+ Promise, Async/Await.
Unified messaging library for Email, SMS, and Voice with multiple provider support
Kendo UI Notification for Angular
Vue.js toast notification plugin
Notifee - a feature rich notifications library for React Native.
Send push notifications to Windows 8 devices using WNS
vaadin-notification
module related web push notification service
A helper library to create GraphQL Parrot mocks.

Client library for the Openfin Notifications Center
Vue.js Notification Library
webpack + node-notifier = build status system notifications
macOS notification state as a native node addon
React Native Local and Remote Notifications
HERE Notification Center Client API
KARTE SDK Notification for React Native.
TypeScript definitions for react-native-push-notification
A Node.JS simple interface to Google's Firebase Cloud Messaging (FCM). Supports both android and iOS, including topic messages, and parallel calls. Aditionally it also keeps the callback behavior for the new firebase messaging service.
Parrot analytics UI storybook
react-notification-system-redux
Simple, tree-shakable browser audio notifications (success, alert, warning, attention, error) with short, medium, and long sounds.
Vue.js Notification Library
AWS SDK for JavaScript Sns Client for Node.js, Browser and React Native