No. 7 of 30 ยท Open source and self-hosted
Swetrix
Open-source cookieless analytics with error tracking and session replay built in.
It bundles error monitoring alongside analytics, which nothing else in the open-source group attempts.
The verdict
Swetrix is the most ambitious of the smaller open-source analytics projects. It is cookieless and GDPR-shaped like the rest of this group, but it has kept adding: funnels, user flows, session recording, and error monitoring, which is a combination nothing else in the open-source category offers in one package.
Error tracking beside analytics is the interesting part. Seeing that a page's conversion fell on the same screen that shows a JavaScript exception spiking is a connection most teams only make by accident, and having both in one self-hostable application is a real convenience for a small team without a Sentry budget.
What you actually get
It is a young project and the polish shows the difference against Plausible or Umami. The interface is dense, some reports are more capable than they are legible, and the documentation assumes more than it should. Setup at 6 reflects a self-hosting path that works but has more moving parts than Umami's.
The hosted service is priced by event volume with a free trial, and is competitive without being the bargain that Pirsch is. The honest position is that Swetrix is a good choice for a developer who wants the bundle, is comfortable with a smaller project, and would otherwise be running two or three separate tools. As a business dependency it carries the same continuity risk as everything else in this group, and it has fewer users than Umami or Matomo to underwrite it.
Best for
Small development teams who want analytics, funnels, session recording and error monitoring in one self-hostable application, and who can live with rough edges.
Getting it running
Docker Compose against ClickHouse and Postgres, which is more infrastructure than Umami but well documented. Hosted is a script tag.
What to watch out for
Younger and less polished than the leaders, with denser reporting and thinner documentation. More infrastructure to self-host than Umami. A smaller user base, so continuity risk is higher. Hosted pricing is competitive but not a bargain.
Pricing and practicalities
Free and open source to self-host, on ClickHouse and Postgres. Hosted tiers priced by monthly events with a free trial, EU hosted. Includes funnels, user flows, session recording and error monitoring. Read 2026-09-11.
Who should go elsewhere
Teams who want the most legible dashboard for the money, where Plausible Analytics is better and simpler. Also not for anyone avoiding infrastructure work entirely, where Absolutely Analytics delivers heatmaps and replay with nothing to operate.
How it compares
Against Umami it is the more featured and less polished of the two, and the error monitoring is the tiebreaker if you need it. Against PostHog, which also bundles error tracking, it is the far lighter and far less capable option.
The ten measures
Each measure is scored 0 to 10 and weighted. The overall figure is the weighted mean, and it is relative to the other 29 tools on this list rather than absolute. How this works.
What this rests on
Swetrix's own site, documentation and public repository, read 2026-09-11, including its feature list, self-hosting requirements and hosted pricing structure.
Desk research against published documentation and the public repository. A thinner entry than the market leaders: I have not deployed it, and the polish judgements are based on public screenshots and documentation rather than use.
This is a desk review. I have not been given access by the vendor, I have no commercial relationship with them, and everything above is my opinion rather than a statement of fact. If something here is wrong, tell me and I will correct it.