8 self-hosted Courier 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

Convoy is a cloud-native webhooks gateway to ingest, persist, debug, and reliably deliver incoming and outgoing webhooks with retries, rate limiting, and security controls.

2.9k stars182 forkslast commit 24 Aug 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