Open-Source Notification Platform. Embeddable Notification Center, E-mail, Push and Slack Integrations.

The Single Sign-On Multi-Factor portal for web apps

Send push notifications to your phone or desktop using PUT/POST

Apprise - Push Notifications that work with just about every platform!

🔥 A well-tested feature-rich modular Firebase implementation for React Native. Supports both iOS & Android platforms for all Firebase services.

The world's most versatile desktop notifications framework 🌎

Free implementation of Play Services

React Native Local and Remote Notifications

Firebase SDK for Apple App Development

Bark is an iOS App which allows you to push custom notifications to your iPhone

Countly is a product analytics platform that helps teams track, analyze and act-on their user actions and behaviour on mobile, web and desktop applications.

⚓️ Easily test HTTP webhooks with this handy tool that displays requests instantly.

🖥️📱🔔 A utility for sending notifications, on demand and when commands finish.

Backend of Bark

Send push notifications to mobile devices through GCM or APNS in Django.

📢 Laudspeaker is an Open Source Customer Engagement and Product Onboarding Platform. Open Source alternative to Braze / One Signal / Customer Io / Appcues / Pendo . Use Laudspeaker to design product onboarding flows and send product and event triggered emails, sms, push and more.

The push notification service for Ruby.

A Node.js library to send all kinds of transactional notifications.

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

A Java library for sending APNs (iOS/macOS/Safari) push notifications