Hoppscotch : A free, online, open source API request builder
Feed43 : Your favorite site doesn't provide news feeds?
This free online service converts any web page to an RSS feed on the fly.
Page2RSS : Page2RSS is a service that helps you monitor web sites that do not publish feeds. It will check any web page for updates and deliver them to your favo...
htty : htty is a console application for interacting with web servers. It’s a fun way to explore web APIs and to learn the ins and outs of HTTP.
mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
This app uses the API of other websites and gives you an RSS feed in return. Quick and simple.