How to Convert HTML Pages into RSS Feeds
Updated
To turn an HTML page into an RSS feed, you extract the repeating items you care about (titles, links, dates) from the page's markup and republish them in RSS or Atom XML. You can do this with a hosted generator like PolitePaul, which handles the extraction and hosting for you, or with a script you run yourself. The generator route is faster and works on JavaScript-heavy pages; the script route gives you full control but requires you to maintain it.
What actually differs between an HTML page and an RSS feed
An HTML page is a document meant for a browser: it mixes layout, navigation, ads, and content. An RSS feed is a structured list of items, each with a title, a link, and usually a date and summary, written in XML that feed readers understand.
Most sites don't publish a feed because the content is generated dynamically, the site owner never set one up, or the page is a listing (search results, a category page, a changelog) rather than a stream of articles. Converting HTML to RSS means deciding which repeating element on the page represents "one item," then mapping its parts to RSS fields.
| RSS field | Where it usually comes from on the page |
|---|---|
title |
The headline or link text of each item |
link |
The href of that item's anchor |
pubDate |
A visible date, or a datetime attribute |
description |
A summary, excerpt, or the item's surrounding text |
Option 1: Use a hosted generator (no code)
PolitePaul is built for this: its stated approach is "a few clicks and your feed is ready," with no code required if you don't want to write any. The general workflow for this class of tool:
- Point it at the page URL. The tool fetches the HTML.
- Let it detect the feed structure, or set it up manually. PolitePaul offers a "Detect feed" action alongside a manual setup path.
- Confirm or edit the selectors. Each item's title, link, and date need to map to specific elements.
- Add filters if the page is noisy. PolitePaul's Smart Filters let you keep or drop items by words and phrases.
- Save and subscribe. You get a feed URL to paste into your reader.
Expected result: a stable feed URL that returns XML (or JSON, which PolitePaul also supports) and updates as the source page changes.
Handling JavaScript-rendered pages
A plain HTTP fetch only sees the initial HTML. If the page loads its content with JavaScript, a naive scraper returns an empty or skeleton document. PolitePaul states it loads dynamic content with its own servers and can retrieve "almost all pages on the internet, including those powered by JavaScript." If you're building your own scraper instead, you'll need a headless browser (for example, Playwright or Puppeteer) so the page finishes rendering before you read the DOM.
Using the selectors editor for precision
When auto-detection picks the wrong elements, you fall back to explicit selectors. PolitePaul exposes an XPath editor supporting XPath 1.0 and 2.0. XPath lets you target an element by its position and attributes rather than by CSS class names that may change, for example selecting every row in a list and then pulling the anchor inside each row. This is the step where most conversions succeed or fail: if your selector matches navigation links or footers instead of content items, the feed fills with junk.
Option 2: Build it yourself
If you'd rather not depend on a third-party service, the shape of the task is the same, just in code:
- Fetch the page (with a headless browser if it's JavaScript-driven).
- Parse the HTML and select the repeating item container.
- For each item, extract title, link, and date.
- Serialize the list to RSS 2.0 or Atom XML.
- Host the XML at a URL and re-run the script on a schedule.
The trade-off is maintenance: when the source site changes its markup, your selectors break and you have to fix them. A hosted tool absorbs some of that, but its selectors can break too.
Filtering so the feed stays useful
A raw scrape often includes items you don't want: pinned posts, "related articles," promotional blocks. Filtering by keyword or phrase before the feed is generated keeps the output clean. PolitePaul's Smart Filters do this by words and phrases. Decide up front what belongs in the feed, because a feed that includes everything is one you'll stop reading.
Verifying the feed and fixing common failures
After you generate the feed URL, test it before trusting it:
- Paste the URL into a feed reader (Feedly, Inoreader, NetNewsWire, or similar) and confirm items appear with correct titles and working links.
- Open the URL directly in a browser. You should see XML, not an HTML error page or a login screen.
- Check the item count and dates. Missing dates or a single item usually means the selector matched the wrong element.
Common failure modes and their causes:
| Symptom | Likely cause |
|---|---|
| Feed is empty | Content loads via JavaScript and wasn't rendered |
| Feed contains nav/footer links | Selector too broad |
| Links point to the wrong place | Relative URLs not resolved to absolute |
| Feed worked, then broke | Source page markup changed |
| Reader rejects the feed | Malformed XML (unescaped characters, bad dates) |
PolitePaul also offers feed monitoring: you can see how regularly your feeds are fetched, spot problems, and get email notifications about feed status. That's useful for feeds you depend on, since a silently broken feed looks identical to a quiet one.
Which approach fits
Choose a hosted generator if you want a working feed in minutes, the page is JavaScript-heavy, or you don't want to maintain scraping code. Choose a self-built script if you need full control over output format, want to avoid a third-party dependency, or are scraping at a scale a hosted tool won't cover. Either way, the deciding factors are the same: can you reliably identify the repeating item, and can you keep that identification working as the page changes.