7 self-hosted NotificationAPI alternatives

ntfy is a lightweight HTTP pub-sub service to send push notifications to phones, desktops, and browsers via PUT/POST or a REST API.

33.8k stars1.6k forksApache-2.0last commit 20 Aug 2026Actively maintained

Svix is an open-source webhook service that handles event ingestion, signing, retries, and endpoint management with scalable delivery and client libraries.

3.4k stars273 forksMITlast commit 26 Aug 2026Actively maintained

Developer-focused platform for automated, omnichannel messaging (email, SMS, push, WhatsApp) with low-code journeys, segmentation, templates, and self-hosting.

2.9k stars380 forksMITlast commit 27 Mar 2026Actively maintained

Hook0 is an open-source Webhooks-as-a-Service platform to send events via a single API call with subscriptions, retries, persistence, and monitoring.

1.5k stars103 forkslast commit 26 Aug 2026Actively maintained

Open-source multi-channel notification service with REST API, management UI, templates and channel abstraction for email, web, push and SMS; built with ASP.NET Core and React.

878 stars83 forksMITlast commit 2 Aug 2026Actively maintained

Open-source event tracker for tech products: ingest key events, send push notifications, run webhook actions, and monitor critical workflows in real time.

477 stars18 forksAGPL-3.0last commit 26 Jul 2026Actively maintained

Lightweight Go service that forwards events from a standalone Frigate NVR to Discord, Matrix, SMTP, webhooks and many services (via Apprise). Supports MQTT or direct API and Docker.

408 stars43 forksMITlast commit 13 Jan 2026Slowing down