RSS to JSON — Convert Feed XML to Structured JSON

RSS to JSON conversion bridges the gap between XML-era web syndication and modern JSON-based application architectures. RSS (Really Simple Syndication) was created by Netscape in 1999 as a way for websites to publish machine-readable summaries of their content. The format went through several versions, with RSS 2.0 (published in 2002 by Dave Winer) becoming the dominant standard. Atom, developed by the IETF in 2005 as RFC 4287, addressed perceived shortcomings in RSS by providing a more rigorous specification with clear semantics for content types, link relations, and extensibility.

The Three Feed Formats

RSS 2.0 uses an <rss> root element containing a <channel> with metadata and <item> entries. It remains the most widely deployed feed format, used by WordPress, Medium, Substack, and most blogging platforms. Common extensions include content:encoded for full article HTML and dc:creator from the Dublin Core namespace for author metadata.

RSS 1.0 (also called RDF Site Summary) uses the <rdf:RDF> root element and is built on the Resource Description Framework. While less common today, it is still encountered in academic and government data feeds that leverage RDF's semantic web capabilities.

Atom uses a <feed> root element with the Atom XML namespace. It provides clearer semantics than RSS: content type is explicit (text, HTML, or XHTML), links use rel attributes to indicate their purpose, and the format is defined by a formal IETF specification. YouTube, GitHub, and Google services use Atom feeds.

JSON Feed: The Modern Alternative

In 2017, Brent Simmons and Manton Reece published the JSON Feed specification, which defines a native JSON syndication format. JSON Feed eliminates the need for XML parsing entirely. However, the vast majority of existing feeds use RSS or Atom, making XML-to-JSON conversion a practical necessity for developers building feed readers, aggregators, or content pipelines in 2026.

Browser-Native XML Parsing

This tool uses the browser's native DOMParser API to parse feed XML. DOMParser is the same engine browsers use to process XHTML, SVG, and other XML-based web standards. It handles well-formed XML documents of any complexity, correctly unwraps CDATA sections, resolves entity references, and validates document structure. If the XML is malformed, DOMParser produces a parsererror element that this tool surfaces as a clear error message.

Converting RSS and Atom feeds to JSON is a common task across many areas of web development and data engineering. XML feeds remain the backbone of web content distribution, but modern applications overwhelmingly work with JSON. Here are the primary reasons developers need this conversion:

• Building feed readers and aggregators — JavaScript frameworks like React, Preact, and Vue work natively with JSON objects. Converting RSS to JSON lets you render feed items as components without manual DOM traversal or XPath queries against XML documents.
• Content syndication pipelines — Newsrooms, content marketing teams, and SEO platforms aggregate feeds from multiple sources. Converting all feeds to a uniform JSON schema simplifies merging, deduplication, and storage in document databases like MongoDB, DynamoDB, or Firestore.
• Podcast and media processing — Podcast feeds are RSS 2.0 documents with enclosure elements pointing to audio files. Converting to JSON makes it straightforward to extract episode metadata, media URLs, and show notes for podcast player UIs or analytics dashboards.
• Static site generation — Static site generators like Astro, Next.js, and Eleventy can fetch RSS feeds at build time and convert them to JSON for rendering blog rolls, news widgets, or aggregated content sections without runtime XML parsing.
• API migration and prototyping — When migrating from XML-based feeds to JSON APIs, this tool helps validate the expected JSON structure and field mapping before writing automated conversion scripts.
• Data analysis and research — Researchers analyzing publication patterns, content trends, or citation networks across academic RSS feeds benefit from JSON's compatibility with data analysis tools like pandas, jq, and D3.js visualization libraries.

Privacy and Security

This RSS to JSON converter runs entirely in your browser. No feed data is sent to any server, stored remotely, or logged. The conversion uses the browser's built-in DOMParser API with zero external dependencies. This makes it safe to parse authenticated feeds, private newsletters, or any content that should not leave your device. Your feed data stays on your machine throughout the entire conversion process.