Help
Frequently asked questions
Straight answers about what RSS Mixer creates, what you can combine, and how memberships work.
Is RSS Mixer a feed reader?
No. RSS Mixer is a feed publisher: it takes several source feeds and produces one combined feed URL. You can use that URL in a reader, automation, monitoring tool, or another application that accepts feeds.
Which feed formats are supported?
RSS Mixer accepts RSS, Atom, RDF, and JSON Feed sources. Every saved mixer is available as both Atom XML and JSON Feed 1.1, with normalized titles, links, dates, authors, categories, source attribution, and supported media.
The safest compatibility test is to preview your own source URLs or read about RSS to JSON conversion and try the resulting feed with the application you intend to use.
How many feeds and sources can I use?
The Free membership includes one mix with up to three sources. Paid memberships increase the number of mixes, sources per mix, and refresh frequency. See the current pricing and limits.
How often are mixed feeds refreshed?
Free feeds refresh every 24 hours, Core every two hours, and Professional hourly. Grandfathered memberships retain their existing refresh policy. A reader may cache a feed independently, so a new item can take additional time to appear there.
What happens to duplicate items?
RSS Mixer removes entries that represent the same item across source feeds, then orders the remaining entries by publication time. Feed formats do not always provide stable identifiers, so unusually formatted sources can still produce apparent duplicates.
Can I combine private or authenticated feeds?
RSS Mixer is currently designed for publicly retrievable feed URLs. Do not submit URLs containing passwords, API keys, private tokens, or confidential content. Authenticated-feed support would require separate storage and privacy safeguards and is not part of the current service.
Can I filter a mixed feed by keyword?
Legacy RSS Mixer feeds support a ?keyword=example query parameter that keeps matching items. We are preserving that behavior during migration and will document any expanded filtering before relying on it.
Why might a source URL be rejected?
The URL may not return a feed, may time out, may redirect unexpectedly, may contain malformed XML, or may block automated retrieval. Use the RSS validator for a specific result, then follow the feed troubleshooting guide.
How do I change or cancel a subscription?
Open your account and use the billing portal. Plan changes and cancellations are handled securely by Stripe.
Who operates RSS Mixer?
RSS Mixer is owned and operated by Family Media LLC. For support or pre-sale questions, email support@rssmixer.com.