This observability list is based on the supplied May 2026 ToolVitals rankings. It covers tools for website change detection, observability platforms, monitoring, profiling, logging, tracing, uptime, and incident management, with each entry carrying a ToolVitals score, health score, shipping score, GitHub stars, and status.

The ranking approach puts ToolVitals score first, then uses GitHub stars as the secondary popularity signal when scores tie. In this dataset, several tools share the same ToolVitals score, so GitHub stars determine their order within that group.

Rankings

Rank Tool Health Shipping GitHub Stars Score Status
1 changedetection.io 95 100 31331 94 🟢 Excellent
2 SigNoz 100 100 26765 94 🟢 Excellent
3 OpenObserve 100 100 18706 94 🟢 Excellent
4 VictoriaMetrics 100 100 16937 94 🟢 Excellent
5 HyperDX 92 100 9479 94 🟢 Excellent
6 OpenLLMetry 97 100 7065 94 🟢 Excellent
7 OneUptime 97 100 6924 94 🟢 Excellent
8 Scanopy 92 100 4863 94 🟢 Excellent
9 Tianji 91 100 3035 94 🟢 Excellent
10 Laminar 97 100 2830 94 🟢 Excellent
11 OpenLIT 92 100 2413 94 🟢 Excellent
12 Parseable 92 100 2366 94 🟢 Excellent
13 Maintenant 89 100 231 94 🟢 Excellent
14 Centreon 95 100 150 94 🟢 Excellent
15 Traceway 89 100 102 94 🟢 Excellent
16 Arthur 92 100 78 94 🟢 Excellent
17 Sentry 97 88 43765 93 🟢 Excellent
18 Pyroscope 85 100 11406 92 🟢 Excellent
19 Prometheus 92 88 63889 90 🟢 Excellent
20 gofr 91 88 21547 90 🟢 Excellent
21 Pulse 97 100 5584 90 🟢 Excellent
22 odigos 92 100 3653 90 🟢 Excellent
23 Monoscope 92 88 553 90 🟢 Excellent
24 LogTide 81 100 402 90 🟢 Excellent
25 Drydock 89 100 197 90 🟢 Excellent
26 Logwiz 86 100 13 90 🟢 Excellent
27 netxms 86 88 351 87 🟢 Excellent
28 RuView 95 100 51621 86 🟢 Excellent
29 Robusta 91 100 3001 86 🟢 Excellent
30 OpenLinkHub 86 88 983 86 🟢 Excellent
31 NodeGet 86 88 153 86 🟢 Excellent
32 WorldMonitor 89 81 53404 85 🟢 Excellent
33 Glances 93 72 32457 84 🟢 Excellent
34 Kener 77 91 4902 83 🟢 Excellent
35 Graylog 91 72 8022 82 🟢 Excellent
36 Uptrace 90 72 4186 82 🟢 Excellent
37 Netdata 88 72 78694 81 🟢 Excellent
38 OpenITCOCKPIT 88 72 375 81 🟢 Excellent
39 Beszel 87 72 21562 80 🟢 Excellent
40 Komari 81 78 4460 80 🟢 Excellent
41 Kuvasz 87 72 513 80 🟢 Excellent
42 Checkmate 85 72 9726 79 🟢 Good
43 LibreNMS 85 72 4688 79 🟢 Good
44 FUXA 85 72 4442 79 🟢 Good
45 Keep 90 62 11778 77 🟢 Good
46 Percona PMM 88 62 1015 76 🟢 Good
47 osquery 84 56 23238 71 🟢 Good
48 Quickwit 84 56 11168 71 🟢 Good
49 Performance Co-Pilot 77 62 1061 70 🟢 Good
50 Regen 76 56 30 67 🟢 Good

Top 3 Highlights

changedetection.io leads the list with a ToolVitals score of 94, 31,331 GitHub stars, and an Excellent status. It stands out as a simple tool for website change detection and alerts, including content changes, price drops, restock alerts, and defacement monitoring.

SigNoz also scores 94 and has 26,765 GitHub stars. It is described as an open-source observability platform native to OpenTelemetry, with logs, traces, and metrics in a single application.

OpenObserve matches the same ToolVitals score and has 18,706 GitHub stars. It focuses on logs, metrics, traces, and frontend monitoring, and is described as a cost-effective alternative to Datadog, Splunk, and Elasticsearch.

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