RSS is a way for a website to publish a plain list of its updates that any other tool can read. You subscribe to that list, new posts show up, you read them in chronological order. No algorithm in the middle.
That used to sound boring. After a decade of feeds chosen for you by something else, it sounds great again.
What RSS actually is
RSS stands for Really Simple Syndication. (You will also see it written as "RDF Site Summary" for a much older version of the spec, but the name everyone uses today is the Really Simple one.) It is an XML file a website publishes at a known URL, listing recent posts with their titles, links, dates, and either a summary or the full text.
A reader app fetches that file every so often, notices what is new since last time, and shows you the new items. That is the entire idea. The current standard is RSS 2.0, maintained by the RSS Advisory Board. The closely related Atom format is specified in RFC 4287. Most readers handle both interchangeably and most people use "RSS" to mean either one.
A few other terms in the wild:
- RSS feed is the file itself. The URL where the XML lives.
- RSS reader (or feed reader) is the app that subscribes to feeds and shows you the items.
- The orange RSS icon is the little broadcast-wave square. Mozilla introduced it in Firefox in 2004 and Microsoft and Opera adopted the same one a couple of years later, which is why it became the de facto symbol for "this site has a feed."
What RSS does, and what it does not
RSS does one job. It tells you when a site you have subscribed to has published something new, and gives you enough to read it (or click through).
It does not:
- Recommend things you did not ask for.
- Track which posts you opened so it can show you more like them.
- Reorder your timeline based on what is "popular."
- Push notifications, comments, likes, replies, or any social layer.
- Do anything at all unless a publisher chooses to publish a feed.
That last one matters. If a site does not publish a feed, RSS cannot help you. Most blogs, news sites, podcasts, Substack newsletters, GitHub release pages, YouTube channels, and Reddit subreddits do publish one, even when the feed URL is not linked anywhere on the page itself. Most closed social platforms (Twitter/X, Instagram, TikTok, LinkedIn) do not.
Why this quietly came back
For about ten years RSS was the thing power users still used while the rest of the internet moved on to social timelines and email newsletters. The story is roughly:
- Google Reader shipped in 2005 and became the default reader for a generation.
- Google Reader was shut down on July 1, 2013. RSS got declared dead about once a year afterwards.
- Algorithmic feeds ate the rest of the decade.
- Newsletters came back. Substack came back. Long-form blogs came back. Quietly, so did feeds, because almost every newsletter platform publishes one whether the author advertises it or not.
In 2026 the situation is funny. The algorithm decides what most people see, and a lot of those people are tired of it. RSS is the boring technology that lets you say "show me what these specific writers published, in the order they published it, with nothing else added." That is a small ask. It is also surprisingly hard to get any other way.
RSS feed in Outlook
Outlook has a built-in RSS feature that drops new items into a folder in your inbox. It works, and if you already live in Outlook it is a low-friction starting point. Two warnings. Items pile up like email and you will end up with thousands of unread bolded folders. Microsoft has dialed RSS support down over the years, especially in Outlook for Mac and the new Outlook for Windows, where it is either limited or absent depending on the build. If you tried it once and it felt clunky, that is not you.
A dedicated reader is almost always nicer.
If you want a dedicated reader
Two names come up in basically every "best RSS reader" thread, Feedly and Inoreader. Both are mature, both work fine, both have free tiers worth trying before you pay for anything. Feedly leans into teams and intelligence work now. Inoreader leans into power users with rules and filters. Pick whichever interface you like more.
If you want a fuller sense of how each one trades off, the Feedly alternatives roundup and Inoreader alternatives roundup walk through where each one is sharp and where it is not.
A reader is the right tool when feeds are the centre of how you read. If feeds are one source among many (X bookmarks, articles you save mid-scroll, newsletters in your inbox, YouTube videos you mean to watch), a more general save-everything tool with feed support starts to make more sense than a pure reader.
Where Keep fits
Keep is not a dedicated RSS reader. It is a place where every link, article, bookmark, newsletter, and feed item you save lives in one searchable library. Feeds are one input. You add a feed URL, Keep checks it every few hours, new posts land in your library as clean markdown alongside everything else you save. Full-text search across the lot, no algorithm picking what you see. The Keep docs on web feeds cover the setup.
If you have never used RSS before, the smallest experiment that teaches you anything is to subscribe to one feed (a blog you keep meaning to read more of) and let it run for two weeks. If you find yourself opening it, the feed earned its place. If you do not, unsubscribe and try a different one. That is the whole loop.
Keep stores the full text of everything you save, including feed posts, so the article survives even when the publisher takes the page down. Having feeds in there alongside articles, X bookmarks, and Kindle highlights is what turns the library into a commonplace book instead of another inbox.