PostRSS works by watching an RSS feed and automatically turning every new item into a post on Facebook, X, LinkedIn, Pinterest, and Vkontakte. That means the one thing PostRSS actually needs from you is a working RSS feed URL — the standard XML file that lists your site’s latest content in a format any automation tool can read.
Most content platforms generate this automatically. WordPress ships with a native feed at /feed/. Ghost, Medium, Substack, and Shopify blogs all do the same out of the box. But plenty of websites don’t: static HTML sites, custom-built platforms, page builders like Wix or Squarespace on older plans, internal company news pages, directory listings, and countless niche CMS tools were never built with a feed module, and some site owners have no way to install one even if they wanted to.
If that’s your situation, you don’t need to rebuild your website or wait on a developer. You need an RSS feed generator — a separate tool that reads your webpage, detects the repeating pattern of new items (blog posts, listings, updates, announcements), and outputs a clean, standards-compliant RSS feed URL. You host that URL (or the generator hosts it for you), and then you paste it straight into PostRSS as the source feed. From that point on, PostRSS handles the rest automatically.
This guide breaks down the top 20 RSS feed generators and aggregators worth knowing in 2026, grouped by how they work, so you can pick the right one for your site and get a working feed connected to PostRSS in minutes.
An RSS feed generator is a tool that converts a regular webpage — one with no native feed — into a valid RSS or Atom feed. Under the hood, almost all of them work the same way:
rss.app/feeds/xxxxx.xml), and it updates automatically whenever the source page changes.Once you have that URL, connecting it to PostRSS is the same as connecting any native feed: paste it into your PostRSS dashboard, choose which social accounts should receive new items, and PostRSS takes over from there — checking the feed on a schedule and auto-posting anything new.
Not every generator fits every site. Before picking one, consider:
These are the fastest path from “no RSS feed” to “working feed URL.” No coding, no server, just a webpage and a few clicks.
RSS.app is one of the most widely used feed generators, built to create a working RSS feed from almost any website or social media page. You paste in a URL, the tool detects the repeating content pattern automatically, and you get a hosted feed URL back in seconds. It also supports combining several source feeds into one, filtering items by keyword, and translating feed content — useful if you’re aggregating from multiple pages before feeding everything into PostRSS.
FeedSpot’s RSS Builder is purpose-built for the “this website has no RSS feed” problem. You select the content section on the target page visually, with no coding required, and it returns a live, auto-updating feed URL. FeedSpot is also one of the largest RSS directories on the web, so if the site you want to follow already has a listed feed, you may not even need to build one.
FetchRSS uses a visual point-and-click builder: you load the target page inside FetchRSS, click the elements you want included (title, image, date), and it generates a feed from that selection. It handles dynamic and JavaScript-heavy pages reasonably well, which is where simpler generators sometimes fail.
Feedity is a straightforward web-based feed generator: give it a URL, and it returns an RSS feed for that page’s content. It’s a solid, no-frills option when you need a quick feed without configuring filters or combining multiple sources.
PolitePol creates an RSS feed for a target webpage with a small number of clicks, and its core features are free to use without creating an account. It’s a good option if you want to test the concept on one page before committing to a paid tool.
FiveFilters’ Feed Creator builds subscribable RSS and JSON feeds from any set of links or repeating items on a webpage. It’s part of the broader FiveFilters toolset (which also includes full-text RSS expansion), making it a good pick if you also want to pull full article content into your feed rather than just headlines and links.
This free online tool creates RSS feeds from most public websites, including ones with no native feed support. It’s a lightweight option worth trying if you only need a single feed and don’t want to sign up for a dedicated feed-building service.
If you already use an RSS reader to keep up with other sites, these two double as feed generators.
Inoreader’s Web Feeds tool lets you paste in a URL that has no detectable RSS feed, then either auto-generates a feed or walks you through a manual setup: you click a sample link on the rendered page to train its parser, and it highlights every matching item across the page. Power users can also enter custom XPath or CSS selectors for precise control. The resulting feed can be used directly as a PostRSS source.
When Feedly detects that a site you’re trying to follow has no RSS feed, it offers to build one for you automatically through its RSS Builder feature. It’s a convenient option if you’re already inside the Feedly ecosystem and want a feed without leaving the app.
For technical users who want full control, no third-party dependency, and no rate limits tied to someone else’s free tier.
RSS-Bridge is an open-source PHP application you run on your own server, purpose-built to generate RSS feeds for sites that don’t provide them natively. It ships with dozens of ready-made “bridges” for popular sites and platforms, and you can write a custom bridge for anything not already supported. Because you host it yourself, there’s no dependency on a third-party company staying in business.
RSSHub is one of the most extensive open-source RSS generation projects available, capable of producing feeds for an enormous range of sources — far beyond typical blog pages. It’s actively maintained, self-hostable via Docker, and a strong choice if your source content sits somewhere unusual that hosted generators don’t handle well.
rsspls is a lightweight, self-hosted tool focused specifically on generating RSS feeds from web pages that lack them, using simple configuration rather than a heavy application stack. It’s a good fit if you want something minimal that runs as a scheduled job rather than a full server application.
These tools were built to alert you when a webpage changes — but that same change-detection engine can output an RSS feed, making them a workable option for pages that update irregularly.
ChangeDetection.io is a free, open-source page-monitoring tool that watches a URL for changes and can deliver those changes as an RSS feed. It’s self-hostable, which makes it a favorite among developers who want a monitoring-plus-feed solution without a subscription.
Distill is a web-monitoring service that can watch a full page or a specific section of one, and supports RSS as an output/notification method. It’s a reasonable option if you’re already using it for change alerts and want to reuse the same monitor as a PostRSS feed source.
If you’re comfortable with no-code automation tools, you can assemble a custom feed pipeline instead of relying on a dedicated generator.
Zapier can watch a webpage, a form submission, a spreadsheet, or dozens of other triggers, and route new items into an RSS-compatible output using webhook and formatter steps. It’s more setup work than a dedicated generator, but it’s flexible if your “feed” needs to originate from something other than a simple webpage.
Make offers the same kind of visual, node-based automation as Zapier, and can be configured to watch a data source and publish it as a structured feed. Like Zapier, this is the more technical, build-it-yourself route — worth it mainly if you’re already using Make for other automations.
IFTTT supports simple “if this then that” applets that can be chained together to create a basic DIY RSS feed from sources like a Google Sheet or a monitored webpage. It’s the least flexible option on this list, but it’s free and fast to set up for very simple cases.
Google Alerts isn’t a website feed generator in the traditional sense, but it does output an RSS feed for any search topic you set up — useful if what you actually want to auto-post isn’t your own site’s content, but mentions of your brand, industry news, or competitor activity from across the web.
For teams with engineering resources who need structured extraction beyond what point-and-click tools can offer.
Diffbot is an AI-powered web-extraction API that can parse article pages, product listings, and more into clean structured data. It’s not an RSS generator out of the box, but the structured output it returns can be piped into a feed format for advanced, high-volume use cases.
Apify is a web-scraping and automation platform with a large library of pre-built “actors” for extracting content from specific sites, plus the ability to build custom scrapers. Combined with a formatting step, it can output RSS-compatible data — a heavier-weight option, but a powerful one if your source page is unusually complex.
/feed/, /rss/, or /rss.xml to your site’s URL, or by viewing the page source and searching for type="application/rss+xml". If one already exists, skip straight to PostRSS.Yes. PostRSS doesn’t care where a feed URL comes from — a native CMS feed, a hosted generator, or a self-hosted tool all work the same way. You can even add multiple feeds from different sources if you’re auto-posting content from more than one page or platform.
Yes, for any of the tools above. The generator re-checks the source page on its own schedule (ranging from every few minutes to every few hours depending on the tool and plan), and the feed URL always reflects the latest scan — you never need to regenerate it manually.
Point the generator at whichever page lists your updates in a repeating pattern — that could be a product listings page, an announcements section, or even a well-structured category page. As long as new items appear in a consistent HTML pattern, most generators on this list can detect it.
For low-volume sites, yes — many free tiers are stable for years. For business-critical feeds, weigh the free tier’s refresh rate and retention policy against a paid plan, or consider a self-hosted option like RSS-Bridge or RSSHub, where reliability depends only on your own server uptime.
No. The no-code tools in this guide (RSS.app, FeedSpot, FetchRSS, Feedity, PolitePol) are built for non-technical users and require nothing beyond pasting a URL and clicking through a visual builder. Coding is only relevant if you choose one of the self-hosted or developer-focused options further down the list.
A missing RSS feed used to mean a manual, page-by-page posting routine — or giving up on automation entirely. That’s no longer the case. With any of the 20 tools above, you can generate a working RSS feed from virtually any website in a few minutes, without waiting on a developer or rebuilding your site. Once that feed exists, PostRSS takes care of everything downstream: monitoring it, formatting new items, and auto-posting them across Facebook, X, LinkedIn, Pinterest, and Vkontakte — turning a site with no RSS support into a fully automated content distribution pipeline.