Feedsmith — Fast parser & generator for RSS, Atom, OPML feed namespaces

In plain words

Feedsmith is a JavaScript parser and generator for RSS, Atom, and OPML feeds that prioritizes speed and namespace preservation. It extracts data from multiple feed formats while maintaining namespace information that other parsers lose, supporting formats like Podcast, Media, iTunes, and Dublin Core. The tool is available as an npm package with a simple API and includes OPML parsing and generation capabilities, with ongoing development for additional namespace support and feed generation features.

written from the facts on this page · September 2026

From the sources

Fast, all‑in‑one JavaScript feed parser and generator for RSS, Atom, RDF, and JSON Feed, with support for popular namespaces and OPML. - macieklamberski/feedsmith

In the maker’s words, at launch

Hi HN! While working on a project that involves frequently parsing a lot of feeds, I needed a fast JavaScript-based parser to extract specific fields from feed namespaces. Existing Node packages were either too slow or merged all feed formats, losing namespace information. So I decided to write it myself and created…

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