“Pipes is a spiritual successor to Yahoo! Pipes, offering a visual programming editor for feeds. You can fetch, manipulate, and combine feeds with ease by connecting blocks in a visual interface. Pipes supports various input formats like RSS, Atom, JSON, and HTML. Share your pipes publicly, set tags for searchability, and create output feeds in RSS format. You can report bugs or request features via Github or email. Licenses allow for self-hosting with Pipes CE, a FOSS version. Blocks like Feed Download, Filter, Merge, and more help you customize feeds to your liking. Use Pipes to streamline your feed manipulation process effortlessly.”
https://www.pipes.digital/docs