CONV. - Convert YouTube video to MP3, GIF or MP4
Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
WebGazer - Monitor your website's availability with WebGazer, review its performance and get instant notifications when your website goes down. No installation required and free plan available.
You-Get - Command-line utility to download media contents from the web
Checkify - Super minimal, simple and inexpensive 24/7 uptime monitoring