Ntfy: Open-Source Tool Lets You Send Push Notifications to Any Device

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Ntfy is an open-source push notification service that allows users to send alerts directly to mobile and desktop devices. The tool operates without requiring account sign-ups or proprietary apps, making it accessible for developers and self-hosters. It uses a simple HTTP-based API, enabling notifications to be triggered via command line, scripts, or applications. The project has gained attention on Hacker News, attracting discussion among developers interested in lightweight notification solutions. Ntfy can be self-hosted or used via the public server at ntfy.sh, giving users flexibility over their data and infrastructure.

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