Feder and Umami: keep Umami, check the numbers you run on.
No, Feder is not a replacement for Umami. Keep Umami. Feder does a different job beside it: it reads what your connected apps recorded and compares each number with your own history, so you know when one cannot be trusted.
Why would I need this?
Because the question is not what the number is. It is whether you can trust it.
Is Feder an alternative to Umami?
No. Umami is an open-source web and product analytics platform. Feder does a different job: it watches the numbers your tools record and says when one cannot be trusted. Nothing here asks you to switch.
Do I need Feder if I have Umami?
They do different jobs, so one does not stand in for the other. Keep Umami for the job it does. Feder's job is to say when a number your tools record has gone quiet or moved outside your own history.
What does Umami do better?
Umami's web tracker works without cookies.
In Umami's words:
Umami's web tracker does not use cookies.
FAQ – umami, read 2026-11-12.Umami records pageviews, where visitors came from, their browser, system and device type, and their approximate location.
In Umami's words:
Umami collects pageviews, referrer URLs, browsers, operating systems, device types, and approximate location.
FAQ – umami, read 2026-11-12.Umami's funnel report shows how many visitors complete a set of steps and where they drop off.
In Umami's words:
Umami Funnel helps you understand the conversion and drop-off rate of users.
Funnel – umami, read 2026-11-12.
What can go wrong with Umami's numbers?
Some ad blockers can block Umami, so visits can go uncounted unless the site uses one of the workarounds Umami describes.
In Umami's words:
Even though Umami is a privacy-first product, it may still get blocked by certain ad blockers.
Bypass ad blockers – umami, read 2026-11-12.Umami groups visitors without cookies using an identifier that changes on a set schedule, so a returning visitor can count as new after it changes, and visitor counts can differ from tools that count another way.
In Umami's words:
Anonymous identifiers are not automatically linked across rotation periods.
Metric definitions – umami, read 2026-11-12.Your own visits can show up in Umami stats unless you set the browser flag Umami describes to leave them out.
In Umami's words:
You want to visit your own website, but you don't want your visits to appear in your stats.
Exclude my own visits – umami, read 2026-11-12.
How does Feder work with Umami?
- Feder has no connection to Umami today, so it reads nothing from it.
- The two can run side by side: Umami keeps doing its job, and Feder checks the numbers your other tools record against your own history.
- Feder only reads. It never changes anything in a connected app.
What should I ask about my Umami setup?
- Which numbers on my dashboard are counted at the source, and which are modeled or estimated?
- If this number stopped counting tomorrow, who would notice, and when?
- What does a normal week look like for this number, in my own history?
Questions owners ask
- Does Feder replace Umami?
- No. Keep Umami. Feder sits beside it.
- Does Feder send data into Umami?
- No. Feder only reads.
- How accurate is Feder?
- We do not publish an accuracy number yet. When there is a measured one, it will be here with how it was measured.
Where do these claims come from?
Every quoted statement about Umami on this page comes from Umami's own pages, quoted above with the date we read them. We read them again by 2027-05-11. If one changes, this page changes or comes down.