3Cols - Manage your code snippets in the cloud fast, easy and free for personal use forever.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Lepton - Lepton image compression: saving 22% losslessly from images at 15MB/s
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
Boostnote - Boostnote is an open-source note-taking app.
Zabbix - Track, record, alert and visualize performance and availability of IT resources