node-feedparser is a streaming RSS/Atom/RDF feed parser for Node.js. In production, it consumes XML from any readable stream and emits normalized feed metadata and article objects through a Transform stream. Consumers use the `meta` event for feed-level data, the `readable`/`data` events for individual items, or async iteration via `for await...of`. The parser handles real-world feed quirks: XML namespaces, CDATA, xml:base URL resolution, embedded HTML in content, duplicate enclosures, malformed XML, and SAX errors that can optionally be resumed past. A small CLI wrapper (`bin/feedparser.js`) allows piping feeds directly to JSON output. The architecture is a classic Node.js library rather than a service or pipeline. The core is `lib/feedparser.js`, which wires SAX events into a normalized model, with `lib/utils.js` providing URL resolution, HTML stripping, and namespace helpers, and `lib/constants.js` mapping namespaces to prefixes. There is no database, API server, or analytics layer. The library depends only on small utility packages (`sax`, `readable-stream`, lodash helpers, `mri` for the CLI), making it embeddable and portable. The repository includes an extensive Mocha test suite with realistic feed fixtures, TypeScript type definitions, and CI coverage across multiple Node.js versions. This is not a data-research repository; it is a general-purpose parsing utility with strong attention to edge cases in syndicated XML. The codebase is mature and actively maintained, with recent commits addressing parser edge cases and type definitions. Technical drift is moderate: some dependencies and code patterns (readable-stream v2, lodash v4, `var` usage) reflect an older Node.js baseline, though the package is still tested against modern Node versions.