RSS
RSS
RSS
RSS

Combine multiple RSS feeds into one unified feed

Add your RSS feeds

Enter one RSS feed URL per line

Or

Load existing merged feed

Paste an existing merged feed URL to edit it

How do I use this?

Put the URLs of RSS feeds you want to combine in the box above; idly (or passionately) browse the preview to make sure it's what you want; hit the button to get a permalink (that's a base-64 encoded URL of the feeds, so no real worry about bitrot).

Why would I want to do this?

Lots of things take RSS. Relatively few things do a great job of interleaving multiple RSS feeds. This is a simple tool to do that.

May I refer to it as rss4?

If you insist.

What if I have a sitemap but not an RSS feed?

Check out Sitemap to RSS, which does exactly what it says on the tin.

What about if it's a calendar, not a sitemap?

Check out caltorss, which can convert public calendars (iCal/ICS) into RSS feeds that this tool can then combine and remix.

Who built this?

Your friends at Buttondown, and they even made it open source.

Changelog

  • 2026-01-08

    Added automatic RSS feed discovery from HTML pages. You can now paste any website URL and we'll try to find its RSS feed automatically.

  • 2025-12-16

    Added support for JSON Feed format (both input and output).

  • 2025-11-01

    Initial release with RSS feed merging support.

No feeds added yet

Add RSS feed URLs to see a preview of your merged feed

Try a sample bundle: