Toast notifications for WPF allows you to create and display rich notifications in WPF applications. It's highly configurable with set of built-in options like positions, behaviours, themes and many others. It's extendable, it gives you possibility to create custom and interactive notifications in simply manner.

TrayIcon for WPF/WinUI/Uno/MAUI

Popups For MAUI

This provides extensibility for Prism.Forms INavigationService to handle Popup Views

Customisable Popups for Xamarin Forms

UWP Popup Toolkit is a simple UI Toolkit to make it easier to work with popups and Dialogs easier than ever in UWP

Note this project is no longer needed as the new Dialog Service in Prism 7.2 accomplishes everything this aimed to solve.

Sample code to demonstrate how to work with Mopups in .NET MAUI

Prism Library Plugin to support Xamarin Community Toolkit (XCT) Popups using the Prism Dialog API

Sample code to demonstrate how to implement the .NET MAUI Community Toolkit Popups

A very tiny library that helps to create modals in Xamarin.iOS

Sample code to demonstrate showing popups with Xamarin Community Toolkit in Xamarin.Forms apps

An example demonstrating how to display and validate pop-ups in a cross-platform way using plain ViewModels.

Sample code that demonstrates how to implement the Rg.Plugins.Popup on your Xamarin.Forms app

Mopups.Maui is a replacement for the "Rg.Plugins.Popups" plugin for Xamarin. Mopups.Maui intends to provide a similar experience to this plugin, however also clean up the code base and provide forward looking enhancements.

Sample code to demonstrate how to pass in and get data from the Xamarin Community Toolkit Popup in Xamarin.Forms

Pop-up with a description box.

NFive client notifications plugin

Quick Notify Icon Window

The Impossible Odds - Popups tool offers a simple and flexible way to display popups in different UI systems supported by Unity.