Description: Downping is a free open-source website monitoring tool that checks if websites are up and running, and sends notifications if a site goes down. It pings sites regularly to check uptime and response time.
Type: software
Pricing: Open Source
Description: Sentry is an open-source error monitoring system that helps developers monitor and fix crashes in real time. It provides full stacktraces and context on bugs or errors in web apps, mobile apps, games, and APIs.
Type: software
Pricing: Freemium