The best free alternative to Quanta is Cabot, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Quanta and ten of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Quanta are Upzilla, Monitoshi, Pingbreak and Curler by Amixr.IO.
Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.
Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.
Website uptime monitoring. Be notified by email when your site is down. Free and open source, monitor as many URLs as you want. You can hack it and host it yourself or use the official instance.
Pingbreak is an original and free monitoring service. Get notified through Twitter if your website is down. Pingbreak checks all of your websites each minute and alert you instantly by Direct Message (DM)
The website monitoring service that doesn't suck. Get an email when your website goes down. Statuses are available by email, web, RSS feeds and widgets.
Statusdroid operates a worldwide network of servers which checks your website every 30 seconds from over 15 worldwide locations.
ServersUp.net can check a number of different services on different hosts to make sure those services are up and running. It will send alerts when the statuses change.
United Kingdom
United States
