European alternatives to Sentry

Sentry collects errors and exceptions from applications and groups them into issues, with the stack trace, the release, browser or server details and the breadcrumbs that led up to a failure. Development teams use it to notice a broken deploy before users report it, and to decide which crash deserves attention first. The core is open source alongside the hosted service.

Crash reports are rarely anonymous: stack traces carry request parameters, user identifiers and sometimes fragments of personal data that nobody intended to send. That makes an error tracker a processor like any other, and one that privacy reviews often overlook. A European alternative to Sentry closes that gap. Bugsink and GlitchTip can be self hosted, while AppSignal and Bugfender are managed services from European companies.