Apps similar to HetrixTools include Uptime Kuma, which is free and open source. Other options are Netdata, UptimeRobot, Tianji and Pingdom. There's no shortage of Website Monitoring Tools like HetrixTools, with more than 100 alternatives for the web, self-hosting, Linux, Mac and Windows.
Notifier monitors your websites, APIs, and servers around the clock and alerts you the moment something goes down. It checks as often as every 30 seconds and sends notifications through email, SMS, voice calls, and Slack so you never miss an outage.
United States
Uptime monitoring and public status pages for indie SaaS founders - 1-minute checks, Slack/Discord/Telegram alerts, and custom domains. Free to start.
Website and infrastructure monitoring for uptime, SSL, DNS, APIs, email servers, ports and private services. It combines 26 check types, five-region verification, private workers, public status pages, SLA reports and alerts through 10 channels.
Czechia
EU
Easy-to-use and accurate real-time monitoring of your websites and APIs to keep you up to date with performance. In the event of an outage, we notify you immediately via email, Slack, Webhooks, SMS, Telegram, or Discord.
Web monitoring service, which checks website every 5 minutes. It detects when it's offline, redirected, broken or even hacked. Provides SMS and email notifications, statistics and logs.
Monitor your websites and get alerts via email, Telegram, Slack, and webhook. 10 monitors free, 100 checked every minute for €3.99 a month.
GermanyEU
Valla DNS is a free, no-signup, all-in-one domain and network intelligence toolkit for developers, sysadmins, and IT professionals. It brings the checks you normally spread across a dozen sites into one fast, dark-mode-friendly interface, with no login and no paywall.
United States
Uptime monitoring for developers. Monitor APIs and websites, get alerts when they go down. 25 monitors free, unlimited for $15/month.
GermanyEU
rhealth.dev is a developer-first uptime monitoring platform designed to reduce alert noise and speed up incident response.
Standard uptime monitors like UptimeRobot only tell you if your server is turned on (returning a 200 OK status). But what happens when a bad plugin update breaks your "Add to Cart" button? Your server stays online, your monitor stays green, and you silently lose sales.
Canada
AI-powered website, API & server monitoring with SSL alerts, EC2 control, and performance tracking. Starts free, built for developers & indie hackers.
India
A lightweight uptime and API monitoring service designed for developers, SaaS founders, and small businesses who want fast, reliable status checks without the complexity of larger tools.
DenmarkEU
