Choosing observability software is difficult when general monitoring, error tracking, and AI application evaluation overlap. This September 2026 snapshot uses the supplied ToolVitals records to compare tools by their overall score, project health, and shipping activity.
The ranking includes open/source-visible tools and orders them by ToolVitals score descending, then health and shipping for equal composite scores. GitHub stars are included as context only and do not determine the ordering.
Rankings
| Rank | Tool | Openness | License | Health | Shipping | GitHub Stars | Score | Status |
|---|---|---|---|---|---|---|---|---|
| 1 | Grafana | Open core | AGPL-3.0 | 99 | 99 | 76536 | 99 | 🟢 Excellent |
| 2 | Sentry | OSI-approved OSS | Apache-2.0 | 99 | 99 | 44702 | 99 | 🟢 Excellent |
| 3 | Future AGI | OSI-approved OSS | Apache-2.0 | 98 | 98 | 1886 | 98 | 🟢 Excellent |
| 4 | Langfuse | OSI-approved OSS | MIT | 98 | 98 | 34013 | 98 | 🟢 Excellent |
| 5 | Open SRE | OSI-approved OSS | Apache-2.0 | 98 | 98 | 10986 | 98 | 🟢 Excellent |
| 6 | OpenObserve | OSI-approved OSS | AGPL-3.0 | 98 | 98 | 21598 | 98 | 🟢 Excellent |
| 7 | Opik | OSI-approved OSS | Apache-2.0 | 98 | 98 | 21731 | 98 | 🟢 Excellent |
| 8 | Prometheus | OSI-approved OSS | Apache-2.0 | 98 | 97 | 65932 | 98 | 🟢 Excellent |
| 9 | LibreNMS | OSI-approved OSS | GPL-3.0 | 98 | 97 | 4863 | 97 | 🟢 Excellent |
| 10 | LangWatch | OSI-approved OSS | Apache-2.0 | 97 | 98 | 3520 | 97 | 🟢 Excellent |
| 11 | Arthur | OSI-approved OSS | MIT | 97 | 97 | 88 | 97 | 🟢 Excellent |
| 12 | GreptimeDB | OSI-approved OSS | Apache-2.0 | 97 | 97 | 6587 | 97 | 🟢 Excellent |
| 13 | HyperDX | OSI-approved OSS | MIT | 97 | 97 | 9871 | 97 | 🟢 Excellent |
| 14 | Latitude | OSI-approved OSS | MIT | 97 | 97 | 4608 | 97 | 🟢 Excellent |
| 15 | Netdata | OSI-approved OSS | GPL-3.0 | 97 | 97 | 80385 | 97 | 🟢 Excellent |
| 16 | SigNoz | OSI-approved OSS | MIT | 97 | 97 | 31981 | 97 | 🟢 Excellent |
| 17 | Vector | OSI-approved OSS | MPL-2.0 | 97 | 97 | 22503 | 97 | 🟢 Excellent |
| 18 | VictoriaMetrics | OSI-approved OSS | Apache-2.0 | 97 | 97 | 17623 | 97 | 🟢 Excellent |
| 19 | Centreon | OSI-approved OSS | Apache-2.0 | 97 | 96 | 162 | 97 | 🟢 Excellent |
| 20 | odigos | OSI-approved OSS | Apache-2.0 | 97 | 96 | 3675 | 97 | 🟢 Excellent |
| 21 | TraceRoot | OSI-approved OSS | Apache-2.0 | 96 | 98 | 752 | 97 | 🟢 Excellent |
| 22 | Performance Co-Pilot | OSI-approved OSS | LGPL-2.1 | 96 | 97 | 1072 | 97 | 🟢 Excellent |
| 23 | Percona PMM | OSI-approved OSS | AGPL-3.0 | 97 | 96 | 1094 | 96 | 🟢 Excellent |
| 24 | Jaeger | OSI-approved OSS | Apache-2.0 | 97 | 95 | 23170 | 96 | 🟢 Excellent |
| 25 | Pyroscope | OSI-approved OSS | AGPL-3.0 | 97 | 95 | 11644 | 96 | 🟢 Excellent |
| 26 | Thanos | OSI-approved OSS | Apache-2.0 | 97 | 95 | 14194 | 96 | 🟢 Excellent |
| 27 | Measure.sh | OSI-approved OSS | Apache-2.0 | 96 | 97 | 1380 | 96 | 🟢 Excellent |
| 28 | HOMER | OSI-approved OSS | AGPL-3.0 | 96 | 96 | 2008 | 96 | 🟢 Excellent |
| 29 | Traceway | OSI-approved OSS | MIT | 96 | 96 | 1442 | 96 | 🟢 Excellent |
| 30 | Dozzle | OSI-approved OSS | MIT | 96 | 95 | 14223 | 96 | 🟢 Excellent |
| 31 | HertzBeat | OSI-approved OSS | Apache-2.0 | 96 | 95 | 7380 | 96 | 🟢 Excellent |
| 32 | Komari | OSI-approved OSS | MIT | 96 | 95 | 6052 | 96 | 🟢 Excellent |
| 33 | Nightingale | OSI-approved OSS | Apache-2.0 | 96 | 95 | 13273 | 96 | 🟢 Excellent |
| 34 | OpenLIT | OSI-approved OSS | Apache-2.0 | 96 | 95 | 2736 | 96 | 🟢 Excellent |
| 35 | OneUptime | OSI-approved OSS | Apache-2.0 | 95 | 98 | 7548 | 96 | 🟢 Excellent |
| 36 | Pulse | OSI-approved OSS | MIT | 95 | 98 | 6656 | 96 | 🟢 Excellent |
| 37 | Glances | OSI-approved OSS | LGPL-3.0 | 96 | 95 | 33489 | 95 | 🟢 Excellent |
| 38 | HolmesGPT | OSI-approved OSS | Apache-2.0 | 96 | 94 | 3181 | 95 | 🟢 Excellent |
| 39 | Quickwit | OSI-approved OSS | Apache-2.0 | 96 | 94 | 11562 | 95 | 🟢 Excellent |
| 40 | Laminar | OSI-approved OSS | Apache-2.0 | 95 | 94 | 3211 | 95 | 🟢 Excellent |
| 41 | Bottom | OSI-approved OSS | MIT | 95 | 94 | 13957 | 94 | 🟢 Excellent |
| 42 | Parseable | OSI-approved OSS | AGPL-3.0 | 94 | 93 | 2449 | 94 | 🟢 Excellent |
| 43 | Monoscope | OSI-approved OSS | AGPL-3.0 | 93 | 96 | 1699 | 94 | 🟢 Excellent |
| 44 | OpenITCOCKPIT | OSI-approved OSS | GPL-3.0 | 94 | 92 | 382 | 93 | 🟢 Excellent |
| 45 | OpenLinkHub | OSI-approved OSS | GPL-3.0 | 94 | 92 | 1162 | 93 | 🟢 Excellent |
| 46 | WorldMonitor | OSI-approved OSS | AGPL-3.0 | 94 | 91 | 85189 | 93 | 🟢 Excellent |
| 47 | Trickster | OSI-approved OSS | Apache-2.0 | 93 | 93 | 2088 | 93 | 🟢 Excellent |
| 48 | ServiceRadar | OSI-approved OSS | Apache-2.0 | 91 | 97 | 917 | 93 | 🟢 Excellent |
| 49 | LogTide | OSI-approved OSS | AGPL-3.0 | 91 | 95 | 441 | 93 | 🟢 Excellent |
| 50 | Maple | OSI-approved OSS | Apache-2.0 | 91 | 95 | 1739 | 93 | 🟢 Excellent |
Top 3 Highlights
Grafana ranks first with a ToolVitals score of 99, health score of 99, and shipping score of 99. ToolVitals labels its openness as Open core and its license as AGPL-3.0. Its supplied description identifies it as an open-source observability platform.
Sentry ranks second with a ToolVitals score of 99, matching Grafana with health and shipping scores of 99. ToolVitals labels it OSI-approved OSS and Apache-2.0. Its supplied description focuses on developer-first error tracking and performance monitoring, making it a direct fit for teams prioritizing application errors and performance.
Future AGI ranks third with a ToolVitals score of 98, health score of 98, and shipping score of 98. ToolVitals labels it OSI-approved OSS and Apache-2.0. Its supplied description covers evaluating, observing, and improving LLM and AI agent applications, so it stands out for observability that includes model and agent behavior.
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