OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.
Truepush - Unleash limitless possibilities with Truepush and save up to $600 monthly. Free up to 10K Subscribers on all features.
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.
PushCrew - Push Notifications for Websites
Apache Archiva - Apache Archiva is an extensible repository management software.