You can't fix what you can't see. Monitoring tools range from focused error trackers to full observability platforms. The right choice depends on what you need to watch and how much you want to spend.
| Tool | Description | Pricing |
|---|---|---|
| Error Tracking | ||
| Sentry | Industry-standard error monitoring. Performance, releases, source maps. | Free (5K errors/mo), Team $26/mo |
| Highlight.io | Session replay + errors + logs. Open source, self-hostable. | Free (500 sessions/mo) |
| Full Observability | ||
| Datadog | Metrics, traces, logs, security. The enterprise observability platform. | From $15/host/mo |
| Grafana | Open-source dashboards and visualization. Prometheus, Loki, Tempo. | Free self-hosted, Cloud free tier |
| New Relic | Full-stack observability. APM, infrastructure, logs, browser. | Free (100GB/mo), Standard $0.30/GB |
| Infrastructure | ||
| Prometheus | Open-source metrics and alerting. Pull-based, time-series database. | Free (open source) |
| PagerDuty | Incident management and on-call scheduling. Alert routing. | Free (5 users), Pro $21/user/mo |
Build a tool in this category?
Get a sponsored listing on AI Tools Hub + 26 other sites. From $49.
Get Listed — $49