Sentry's Team plan starts at $26/month for 50,000 errors, but overages are billed per event on a sliding scale, and Seer, its AI debugging agent, adds a separate $40/month charge for every contributor who opens two or more pull requests in a connected repo. Bugsnag prices per project with hard event caps starting around $149/month, so a team running several services either splits its error budget thin across projects or pays for multiple project slots to keep each one under its ceiling. Self-hosting Sentry itself removes the per-event meter entirely — the same FSL-licensed server and SDKs run on your own Docker Compose stack with no Seer add-on required. GlitchTip and Bugsink both speak the open-source Sentry SDK's wire protocol, so switching is a single DSN change, while Errbit's Airbrake-compatible endpoint covers teams whose instrumentation already targets Airbrake or Bugsnag-style notifiers instead.
| Name | Main Category | Sub-Category | Target Alternative | Free Tier Summary | Self-Hostable? | Short Description | Primary Link |
|---|---|---|---|---|---|---|---|
Errbit | DevOps & Application Hosting | Error Monitoring / Exception Tracking | Airbrake | 100% Free - Self-Hosted (MIT) | Yes - Docker | Rails-based error catcher that implements the Airbrake API, so existing airbrake gem instrumentation can point at a self-hosted Errbit server instead of Airbrake's SaaS. A long-running, still-maintained project best suited to Ruby/Rails teams already on Airbrake-style notifiers rather than the Sentry SDK ecosystem. | |
Sentry (Self-Hosted) | DevOps & Application Hosting | Error Monitoring / Exception Tracking | Sentry (SaaS) | 100% Free - Self-Hosted (FSL 1.0/1.1, converts to Apache 2.0 after 2 years) | Yes - Docker | The original Sentry server run on your own infrastructure via Docker Compose — full exception tracking, release health, and cron monitoring with the same SDKs as Sentry Cloud. Needs roughly 16GB RAM and more operational upkeep than the lighter alternatives below, but keeps every feature of the product you already know. | |
GlitchTip | DevOps & Application Hosting | Error Monitoring / Exception Tracking | Sentry | 100% Free - Self-Hosted (MIT) | Yes - Docker | Lightweight Django-based error tracker that speaks the same wire protocol as the open-source Sentry SDKs, so migrating is a one-line DSN change with no code rewrites. Runs comfortably on 1-2GB of RAM, trading Sentry's session replay and profiling for a much smaller footprint. | |
Temps | Product Analytics & Monitoring | All-in-One PaaS & Bundled Observability (Replay, Errors, Analytics) | Sentry / LogRocket / Datadog RUM / PostHog | 100% Free - Self-Hosted (Apache 2.0, no session caps, no per-event/seat fees) | Yes - Binary | Self-hosted PaaS and deployment platform compiled as a single Rust binary that bundles Sentry-compatible error tracking, rrweb-based session replay, Web Vitals analytics, and OpenTelemetry ingestion alongside app hosting. Tags error reports directly with the deployment SHA that introduced them, keeping all telemetry on your own VPS with no per-event pricing. | |
Bugsink | DevOps & Application Hosting | Error Monitoring / Exception Tracking | Sentry | 100% Free - Self-Hosted (Business Source License, source-available) | Yes - Docker | Minimal single-container error tracker built for teams that want just the crash report: stack traces with local variable values, event grouping, and Sentry SDK compatibility, running on as little as 512MB RAM with a SQLite-backed queue. Deliberately skips replay, analytics, and APM to stay operationally simple. |
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