nowfound

Dev tools · alternatives · 2026

SH

24 alternatives to Self-hosted, open-source infrastructure monitoring and alerting

Get alerted when services go down or metrics go crazy

Cabot is an open-source, self-hosted monitoring and alerting system designed to notify users when services experience downtime or when system metrics behave abnormally. It's built for developers and operations teams… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Self-hosted, open-source infrastructure monitoring and alerting launched in 2014; newer entries below may have overtaken it.

  1. 1
    Cabot▲68

    Get alerted when services go down or metrics go crazy

    2016 · cabotapp.com · its alternatives →

  2. 2

    GlassWire is a modern personal firewall and network monitor with over 54 million downloads. Download GlassWire free!

    2014 · glasswire.com · its alternatives →

  3. 3
    Hyperping▲350

    Uptime monitoring made beautifully simple and reliable

    2018 · hyperping.com · its alternatives →

  4. 4

    Beautifully simple and reliable uptime monitoring

    2018 · hyperping.com · its alternatives →

  5. 5
    Cronhub▲418

    Painless cron monitoring in a simple dashboard

    2018 · its alternatives →

  6. 6
    Keep▲682

    The open-source alerts management and automation platform

    2023 · github.com · its alternatives →

  7. 7RT
  8. 8
    Spectate▲273

    Monitor, alert & manage incidents - supercharged by A.I.

    2023 · spectate.net · its alternatives →

  9. 9

    Enterprise-grade SRE process automation for Dev & SRE teams.

    2024 · temperstack.com · its alternatives →

  10. 10

    Monitoring for websites, APIs, and cron jobs

    2024 · webgazer.io · its alternatives →

  11. 11

    Squzy - is a high-performance open-source monitoring, incident and alert system written in Golang with Bazel and love. Welcome to free SRE - squzy/squzy

    2020 · github.com · its alternatives →

  12. 12

    A Slack channel for monitoring on Twitter

    2019 · its alternatives →

  13. 13
    Cronitor▲170

    Monitor cron jobs, micro-services and almost anything else.

    2017 · cronitor.io · its alternatives →

  14. 14

    dish is a lightweight, 0 dependency monitoring tool in the form of a small binary executable. Upon execution, it checks the provided sockets (which can be provided in a JSON file or served by a remote JSON API endpoint). The results of the check are then reported to the configured channels. It started as a learning project and ended up proving quite handy. Me and my friend have been using it to monitor our services for the last 3 years. We have refactored the codebase to be a bit more presentable recently and thought we'd share on here! The currently supported channels include: - Telegram -…

    2025 · github.com · its alternatives →

  15. 15

    Simple & cheap uptime monitoring service

    2021 · monitorbuddy.com · its alternatives →

  16. 16

    Hi Hacker News! Shahar and Tal from Keep here. We're thrilled to announce that we're open-sourcing our alerting CLI tool, Keep (https://github.com/keephq/keep). Designed by developers for developers, Keep streamlines and simplifies alerting, making it a first-class citizen within the development process. Think of Keep as Prometheus Alertmanager but for all observability tools, with a simple and intuitive (GitHub actions-like) syntax. We believe that alerting has historically been neglected in existing monitoring platforms, leading to subpar alerting practices. With Keep,…

    2023 · github.com · its alternatives →

  17. 17

    ServiceRadar is an open-source platform for distributed, secure network management and observability, scaling to 100k+ devices. Born from frustration with complex traditional NMS tools like Zabbix, it bridges legacy (SNMP/syslog) and modern (gNMI, OTLP) protocols for cloud-native environments. We built ServiceRadar to simplify monitoring hybrid telecom networks, evolving it into a Kubernetes-native solution with Helm and Docker support. It uses mTLS with SPIFFE/SPIRE, NATS JetStream for event streaming (90M+ EPS), and SRQL for intuitive queries. Integrated with OpenTelemetry,…

    2025 · github.com · its alternatives →

  18. 18AR
  19. 19

    Self-hosted & easy to use uptime monitoring software.

    2022 · 66uptime.com · its alternatives →

  20. 20
    TaVivo▲100

    Monitor APIs or web services based on a configurable time

    2022 · its alternatives →

  21. 21

    Automated internet performance monitoring

    2021 · its alternatives →

  22. 22

    Get instant alerts when your website goes down.

    2023 · uptime-monitor.io · its alternatives →

  23. 23

    Uptime monitoring with public & private status pages

    2025 · hyperping.com · its alternatives →

  24. 24

    Website downtime alerts & uptime monitoring

    2018 · downtimemonkey.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →