OpenSoft

Open source Monitoring & error tracking

Error tracking, uptime checks and application observability. Ranked by health score.

Zabbix

100 · Healthy

Enterprise monitoring for networks, servers, VMs and applications, with templates, triggers and escalations.

Free, share hosted changesAGPL-3.0Relicensed 2024★ 6.5kLast commit 2 days ago

Prometheus

97 · Healthy

Metrics collection and time series database with its own query language (PromQL) and alerting rules.

Free to useApache-2.0★ 66kLast commit yesterday

OpenObserve

94 · Healthy

Observability platform for logs, metrics, traces and real user monitoring, built for low storage costs.

Free, share hosted changesAGPL-3.0Relicensed 2023★ 22kLast commit today

SigNoz

92 · Healthy

OpenTelemetry-native observability with logs, metrics and traces in one app.

Free core, paid extrasMIT★ 32kLast commit today

Keep

92 · Healthy

Alert management that pulls in alerts from your monitoring tools, deduplicates and correlates them, and runs workflows.

Free core, paid extrasMIT★ 12kLast commit 11 days ago

HyperDX

91 · Healthy

Observability on ClickHouse that links session replays, logs, metrics, traces and errors in one search.

Free to useMIT★ 9.9kLast commit today

Grafana

90 · Healthy

Dashboards and alerting over metrics, logs and traces from Prometheus, Loki, SQL databases and many other sources.

Free, share hosted changesAGPL-3.0Relicensed 2021★ 77kLast commit today

Loki

90 · Healthy

Log aggregation that indexes labels rather than full text to keep storage cheap, queried from Grafana.

Free, share hosted changesAGPL-3.0Relicensed 2021★ 29kLast commit today

openstatus

88 · Healthy

Status pages and uptime monitoring from several regions, with incident updates and alerting.

Free, share hosted changesAGPL-3.0★ 9.2kLast commit today

Gatus

87 · Healthy

Health checks for HTTP, TCP, DNS and more, configured in YAML, with alerts and a status page.

Free to useApache-2.0★ 12kLast commit yesterday

Netdata

86 · Healthy

Per-second infrastructure monitoring agent with auto-discovered metrics, dashboards and anomaly detection.

Free core, paid extrasGPL-3.0★ 81kLast commit today

Uptime Kuma

83 · Healthy

Uptime monitor for HTTP, TCP, DNS and more, with status pages and many notification channels.

Free to useMIT★ 92kLast commit yesterday

Apache SkyWalking

78 · Stable

Application performance monitoring with distributed tracing, service maps and metrics for microservices.

Free to useApache-2.0★ 25kLast commit yesterday

OneUptime

72 · Stable

All-in-one platform for uptime checks, status pages, on-call, incidents, logs and APM.

Free core, paid extrasApache-2.0★ 7.7kLast commit today

Checkmate

70 · Stable

Uptime, response time and server hardware monitoring, with incidents and status pages.

Free, share hosted changesAGPL-3.0★ 11kLast commit today

Healthchecks

69 · Stable

Cron job and background task monitoring that alerts you when expected pings stop arriving.

Free to useBSD-3-Clause★ 10kLast commit 3 days ago

Kener

69 · Stable

Status page with built-in monitors, incident history and a polished public page.

Free to useMIT★ 5.2kLast commit yesterday

LogTide

66 · Stable

Log management with search, alerts and dashboards, designed to be light to run and privacy-friendly.

Free, share hosted changesAGPL-3.0★ 457Last commit 2 months ago

Coroot

65 · Stable

eBPF-based observability that collects metrics, logs, traces and profiles without code changes and suggests root causes.

Free to useApache-2.0★ 8.0kLast commit 3 days ago

Uptrace

65 · Stable

OpenTelemetry APM for traces, metrics and logs, stored in ClickHouse.

Free, share hosted changesAGPL-3.0★ 4.3kLast commit yesterday

Source-available and unverified licenses

The code for these is public, but the license is not an OSI open source license, or we have not verified it yet. Check the license notes on each project before relying on it.

Error tracking and performance monitoring; the same code as Sentry's hosted service.

Free, no resellingFunctional Source License 1.1Relicensed 2023★ 46kLast commit today

Bugsink

64 · Stable

Error tracking that accepts events from Sentry SDKs and runs on a single small server.

Free, no resellingPolyForm Shield 1.0.0★ 2.1kLast commit yesterday

Cachet

60 · Stable

Status page system for publishing component status, incidents and scheduled maintenance.

Free with conditionsCachet License★ 15kLast commit 4 days ago

At a glance

Health and license are separate verdicts: a project can be well maintained and still not be open source.

ProjectHealthLicenseStarsLast commit
Zabbix100 · HealthyFree, share hosted changesAGPL-3.0Relicensed 20246.5k2 days ago
Prometheus97 · HealthyFree to useApache-2.066kyesterday
OpenObserve94 · HealthyFree, share hosted changesAGPL-3.0Relicensed 202322ktoday
SigNoz92 · HealthyFree core, paid extrasMIT32ktoday
Keep92 · HealthyFree core, paid extrasMIT12k11 days ago
HyperDX91 · HealthyFree to useMIT9.9ktoday
Grafana90 · HealthyFree, share hosted changesAGPL-3.0Relicensed 202177ktoday
Loki90 · HealthyFree, share hosted changesAGPL-3.0Relicensed 202129ktoday
openstatus88 · HealthyFree, share hosted changesAGPL-3.09.2ktoday
Gatus87 · HealthyFree to useApache-2.012kyesterday
Netdata86 · HealthyFree core, paid extrasGPL-3.081ktoday
Uptime Kuma83 · HealthyFree to useMIT92kyesterday
Apache SkyWalking78 · StableFree to useApache-2.025kyesterday
OneUptime72 · StableFree core, paid extrasApache-2.07.7ktoday
Checkmate70 · StableFree, share hosted changesAGPL-3.011ktoday
Healthchecks69 · StableFree to useBSD-3-Clause10k3 days ago
Kener69 · StableFree to useMIT5.2kyesterday
LogTide66 · StableFree, share hosted changesAGPL-3.04572 months ago
Coroot65 · StableFree to useApache-2.08.0k3 days ago
Uptrace65 · StableFree, share hosted changesAGPL-3.04.3kyesterday
Sentry (self-hosted)99 · HealthyFree, no resellingFunctional Source License 1.1Relicensed 202346ktoday
Bugsink64 · StableFree, no resellingPolyForm Shield 1.0.02.1kyesterday
Cachet60 · StableFree with conditionsCachet License15k4 days ago

Paid products these replace

Alternatives to AxiomAlternatives to Better StackAlternatives to BugsnagAlternatives to ChecklyAlternatives to CoralogixAlternatives to CronitorAlternatives to DatadogAlternatives to DynatraceAlternatives to FireHydrantAlternatives to HoneycombAlternatives to incident.ioAlternatives to InstatusAlternatives to Logz.ioAlternatives to New RelicAlternatives to Oh DearAlternatives to PagerDutyAlternatives to PingdomAlternatives to PulseticAlternatives to RaygunAlternatives to RollbarAlternatives to RootlyAlternatives to Site24x7Alternatives to SplunkAlternatives to StatuspageAlternatives to Sumo LogicAlternatives to UptimeRobot

Scores last refreshed from GitHub on 9 October 2026. How we score.