Take any RSS feed, apply your own tag rules, and get a cleaner feed URL to subscribe to in your reader. Free, no ads, no tracking.
Many RSS feeds mix topics you care about with ones you don't — a tech blog that also covers crypto, a news site that also runs sports. FeedFilters sits between the source and your reader and drops (or keeps) items based on rules you set.
Node.js, C++, and multi-word phrases all work. Add except tags to override the filter — they drop items in include mode, rescue them in exclude mode.FeedFilters is free to use. No ads, no tracking, no paid tier. Just sign up with an email address and start filtering.