Choosing an observability tool requires comparing broad monitoring platforms with tools built for AI applications and LLM engineering, while also checking project health, shipping activity, openness, and licensing. This October 2026 view uses the supplied ToolVitals records for those scores, labels, descriptions, and rankings.
The ranking covers open/source-visible tools and orders them by ToolVitals score descending; health and shipping determine the order when composite scores are equal. GitHub stars provide context only and are not part of the ranking.
Rankings
| Rank | Tool | Openness | License | Health | Shipping | GitHub Stars | Score | Status |
|---|---|---|---|---|---|---|---|---|
| 1 | Grafana | Open core | AGPL-3.0 | 99 | 98 | 77050 | 98 | 🟢 Excellent |
| 2 | Future AGI | OSI-approved OSS | Apache-2.0 | 98 | 98 | 2107 | 98 | 🟢 Excellent |
| 3 | Langfuse | OSI-approved OSS | MIT | 98 | 98 | 35336 | 98 | 🟢 Excellent |
| 4 | Sentry | OSI-approved OSS | Apache-2.0 | 98 | 98 | 45138 | 98 | 🟢 Excellent |
| 5 | Opik | OSI-approved OSS | Apache-2.0 | 98 | 97 | 22361 | 98 | 🟢 Excellent |
| 6 | Open SRE | OSI-approved OSS | Apache-2.0 | 98 | 97 | 11357 | 97 | 🟢 Excellent |
| 7 | OpenObserve | OSI-approved OSS | AGPL-3.0 | 98 | 97 | 22238 | 97 | 🟢 Excellent |
| 8 | Latitude | OSI-approved OSS | MIT | 97 | 97 | 4699 | 97 | 🟢 Excellent |
| 9 | Centreon | OSI-approved OSS | Apache-2.0 | 97 | 96 | 164 | 97 | 🟢 Excellent |
| 10 | GreptimeDB | OSI-approved OSS | Apache-2.0 | 97 | 96 | 6725 | 97 | 🟢 Excellent |
| 11 | HyperDX | OSI-approved OSS | MIT | 97 | 96 | 9928 | 97 | 🟢 Excellent |
| 12 | LibreNMS | OSI-approved OSS | GPL-3.0 | 97 | 96 | 4939 | 97 | 🟢 Excellent |
| 13 | Prometheus | OSI-approved OSS | Apache-2.0 | 97 | 96 | 66351 | 97 | 🟢 Excellent |
| 14 | SigNoz | OSI-approved OSS | MIT | 97 | 96 | 32268 | 97 | 🟢 Excellent |
| 15 | LangWatch | OSI-approved OSS | Apache-2.0 | 96 | 97 | 4911 | 97 | 🟢 Excellent |
| 16 | Dozzle | OSI-approved OSS | MIT | 97 | 96 | 14532 | 96 | 🟢 Excellent |
| 17 | Netdata | OSI-approved OSS | GPL-3.0 | 97 | 96 | 80788 | 96 | 🟢 Excellent |
| 18 | Vector | OSI-approved OSS | MPL-2.0 | 97 | 96 | 22663 | 96 | 🟢 Excellent |
| 19 | VictoriaMetrics | OSI-approved OSS | Apache-2.0 | 97 | 96 | 17813 | 96 | 🟢 Excellent |
| 20 | Beszel | OSI-approved OSS | MIT | 97 | 95 | 25925 | 96 | 🟢 Excellent |
| 21 | Measure.sh | OSI-approved OSS | Apache-2.0 | 96 | 97 | 1406 | 96 | 🟢 Excellent |
| 22 | TraceRoot | OSI-approved OSS | Apache-2.0 | 96 | 97 | 790 | 96 | 🟢 Excellent |
| 23 | Arthur | OSI-approved OSS | MIT | 96 | 96 | 91 | 96 | 🟢 Excellent |
| 24 | HOMER | OSI-approved OSS | AGPL-3.0 | 96 | 96 | 2019 | 96 | 🟢 Excellent |
| 25 | Performance Co-Pilot | OSI-approved OSS | LGPL-2.1 | 96 | 96 | 1077 | 96 | 🟢 Excellent |
| 26 | odigos | OSI-approved OSS | Apache-2.0 | 96 | 96 | 3676 | 96 | 🟢 Excellent |
| 27 | Percona PMM | OSI-approved OSS | AGPL-3.0 | 96 | 95 | 1110 | 96 | 🟢 Excellent |
| 28 | Pulse | OSI-approved OSS | MIT | 95 | 98 | 6777 | 96 | 🟢 Excellent |
| 29 | Glances | OSI-approved OSS | LGPL-3.0 | 96 | 94 | 33724 | 95 | 🟢 Excellent |
| 30 | Jaeger | OSI-approved OSS | Apache-2.0 | 96 | 94 | 23266 | 95 | 🟢 Excellent |
| 31 | OpenLIT | OSI-approved OSS | Apache-2.0 | 96 | 94 | 2813 | 95 | 🟢 Excellent |
| 32 | Pyroscope | OSI-approved OSS | AGPL-3.0 | 96 | 94 | 11690 | 95 | 🟢 Excellent |
| 33 | Traceway | OSI-approved OSS | MIT | 95 | 95 | 1592 | 95 | 🟢 Excellent |
| 34 | OneUptime | OSI-approved OSS | Apache-2.0 | 94 | 97 | 7696 | 95 | 🟢 Excellent |
| 35 | Maple | OSI-approved OSS | Apache-2.0 | 94 | 96 | 1799 | 95 | 🟢 Excellent |
| 36 | Laminar | OSI-approved OSS | Apache-2.0 | 95 | 93 | 3294 | 94 | 🟢 Excellent |
| 37 | changedetection.io | OSI-approved OSS | Apache-2.0 | 95 | 93 | 34748 | 94 | 🟢 Excellent |
| 38 | Quickwit | OSI-approved OSS | Apache-2.0 | 95 | 92 | 11697 | 94 | 🟢 Excellent |
| 39 | Komari | OSI-approved OSS | MIT | 94 | 94 | 6313 | 94 | 🟢 Excellent |
| 40 | HolmesGPT | OSI-approved OSS | Apache-2.0 | 94 | 92 | 3500 | 94 | 🟢 Excellent |
| 41 | Monoscope | OSI-approved OSS | AGPL-3.0 | 93 | 95 | 1864 | 94 | 🟢 Excellent |
| 42 | Thanos | OSI-approved OSS | Apache-2.0 | 95 | 92 | 14231 | 93 | 🟢 Excellent |
| 43 | Bottom | OSI-approved OSS | MIT | 94 | 93 | 14080 | 93 | 🟢 Excellent |
| 44 | OpenLinkHub | OSI-approved OSS | GPL-3.0 | 94 | 92 | 1212 | 93 | 🟢 Excellent |
| 45 | WorldMonitor | OSI-approved OSS | AGPL-3.0 | 94 | 92 | 87671 | 93 | 🟢 Excellent |
| 46 | OpenITCOCKPIT | OSI-approved OSS | GPL-3.0 | 94 | 91 | 387 | 93 | 🟢 Excellent |
| 47 | Nightingale | OSI-approved OSS | Apache-2.0 | 93 | 92 | 13318 | 93 | 🟢 Excellent |
| 48 | Trickster | OSI-approved OSS | Apache-2.0 | 93 | 92 | 2092 | 93 | 🟢 Excellent |
| 49 | ServiceRadar | OSI-approved OSS | Apache-2.0 | 91 | 96 | 916 | 93 | 🟢 Excellent |
| 50 | HertzBeat | OSI-approved OSS | Apache-2.0 | 94 | 91 | 7412 | 92 | 🟢 Excellent |
Top 3 Highlights
Grafana ranks first with a ToolVitals score of 98, a health score of 99, and a shipping score of 98. The supplied description identifies it as an open-source observability platform. ToolVitals labels its openness as “Open core” and its license as “AGPL-3.0”. Its health score is higher than those of the other two tools in the top three.
Future AGI ranks second with a ToolVitals score of 98, a health score of 98, and a shipping score of 98. Its listed focus is evaluating, observing, and improving LLM and AI agent applications, giving it a specific fit for teams monitoring AI software. ToolVitals labels its openness as “OSI-approved OSS” and its license as “Apache-2.0”.
Langfuse ranks third with a ToolVitals score of 98, a health score of 98, and a shipping score of 98. The supplied description covers LLM observability, metrics, evaluations, prompt management, a playground, and datasets, along with integrations for OpenTelemetry, Langchain, the OpenAI SDK, LiteLLM, and more. ToolVitals labels its openness as “OSI-approved OSS” and its license as “MIT”.
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