Dev tools · alternatives · 2026

24 alternatives to 66uptime

Self-hosted & easy to use uptime monitoring software.

66uptime is a self-hosted uptime monitoring tool that tracks websites, servers, ports, and SSL certificate expiration dates. It includes cronjob monitoring, customizable status pages, and multiple notification options.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 66uptime launched in 2022; newer entries below may have overtaken it.

1
Apex Ping▲301
Uptime & performance monitoring for websites and APIs
2016 · its alternatives →
2
Free Monitoring Suite by WebGazer▲338
Monitoring for websites, APIs, and cron jobs
2024 · webgazer.io · its alternatives →
3
Uptime Monster▲208
Monitor your websites and servers from one place
2024 · uptimemonster.com · its alternatives →
4
OneUptime – open-source Datadog Alternative▲233
Complete open-source monitoring and observability platform. - OneUptime/oneuptime
2024 · github.com · its alternatives →
5
Uptime Monitor▲76
Get instant alerts when your website goes down.
2023 · uptime-monitor.io · its alternatives →
6
UptimeRobot App 2.0▲199
Web, SSL, ports & Cron-jobs monitoring
2021 · uptimerobot.com · its alternatives →
7GC
govuptime.com▲267
2013 · govuptime.com · its alternatives →
8
Robodash▲103
Cron and uptime monitoring dashboard
2019 · robodash.app · its alternatives →
9
Kuvasz – an open-source uptime and SSL monitoring service▲29
A few months ago I took out my side project - an uptime & SSL monitoring service - from the drawer. I've decided to give it a new life and completely overhauled it, added a lot of new feature, and most importantly, a UI. Highlights - configurable uptime & SSL monitoring - Telegram, Slack, PagerDuty & E-mail notifications (more to come!) - fully-fledged REST API - a responsive, modern & fast UI - monitors are optionally configurable via a single YAML file, or you can choose to use either the UI or the API to maintain them - Cloud-native, distributed as amd64 and arm64 images - Only one…
2025 · kuvasz-uptime.dev · its alternatives →
10
phpUptime - Website Uptime Monitor▲4
Self-hosted Website & SSL Uptime Monitor.
2025 · lunatio.com · its alternatives →
11
MyUptimeKuma▲81
Uptime Kuma is an easy-to-use monitoring tool
2024 · its alternatives →
12
PingPing▲168
A simple tool to monitor your website and SSL
2018 · pingping.io · its alternatives →
13
ProSiteMonitor▲6
Monitor your website uptime, SSL, domain — 24/7
Nov 2025 · prositemonitor.com · its alternatives →
14
Monitor Buddy▲131
Simple & cheap uptime monitoring service
2021 · monitorbuddy.com · its alternatives →
15
OneUptime▲98
Open source Datadog alternative
2023 · oneuptime.com · its alternatives →
16
Up Ninja▲128
Simple and affordable uptime monitors and status pages
2020 · upninja.io · its alternatives →
17
Upptime▲17
Free and open source uptime monitoring and status page
2020 · upptime.js.org · its alternatives →
18
UptimeMonitor▲8
Self-hosted monitoring tool
2025 · github.com · its alternatives →
19
Netumo▲92
Uptime monitoring is easy, and simple.
2021 · netumo.com · its alternatives →
20
StatusPing▲78
Monitor everything about your website
2021 · its alternatives →
21
Downtime Monkey▲69
Website downtime alerts & uptime monitoring
2018 · downtimemonkey.com · its alternatives →
22UW
UptimeButler – Website availability monitoring [public beta]▲11
2015 · uptimebutler.com · its alternatives →
23
Uppi▲34
Uptime monitoring and alerting, open-source & free
2025 · its alternatives →
24
4Uptime▲65
Uptime & performance monitoring solution
2022 · its alternatives →

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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 →