Open Source Monitoring & Observability Tools using React

A curated collection of the best free and open source tools for knowing what a system is doing, covering metrics, logs, traces, uptime checks, dashboards and alerting using React.

Grafana

Open source platform for querying, visualizing and alerting on metrics and logs wherever they are stored, with dashboards you share.

Alternative to:

Datadog

Unified observability for metrics, logs, traces, and more

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77,560
Forks
14,873
Last commit
17 hours ago

Prometheus

A monitoring system that scrapes time series from configured targets, evaluates rules and fires alerts, standard equipment for cloud native operations.

Alternative to:

Datadog

Open source metrics collection, storage, and alerting

Stars
66,820

SigNoz

An OpenTelemetry-native observability platform keeping logs, metrics, traces, alerts and dashboards in one place instead of separate tools.

Alternative to:

Datadog

Open-source observability platform for cloud-native apps

Stars
32,473

Vector

Observability pipeline that collects, transforms and routes logs and metrics from any source to any vendor, for platform and infrastructure teams.

Alternative to:

Cribl Stream

Collect, transform, and route logs and metrics in one tool

Stars
22,777

VictoriaMetrics

Time series database and Prometheus replacement for teams storing large volumes of metrics without the memory and disk cost.

Alternative to:

Datadog

High-performance time series database for metrics and logs

Stars
17,926

Keep

An AIOps and alert management platform that deduplicates, correlates and automates alerts from every monitoring tool in one console.

Alternative to:

PagerDuty

Unify, automate, and elevate your monitoring workflow

Stars
12,452

Checkmate

A self-hosted uptime and infrastructure monitor with status pages and incident alerts, for teams watching servers they run themselves.

Alternative to:

UptimeRobot

Beautiful open-source monitoring for modern infrastructure

Stars
10,998

OpenReplay

Self-hosted session replay suite that shows developers what users did on a web app and what broke underneath.

Alternative to:

Hotjar

Self-hosted session replay with complete data control

Stars
13,057

HyperDX

An observability interface for ClickHouse that puts logs, metrics, traces, and session replays behind one search for engineers debugging production.

Alternative to:

Datadog

Full-stack observability without the enterprise price tag

Stars
9,974

OpenStatus

Status pages and uptime monitoring in one open source platform, for teams that would rather not wire two tools together.

Alternative to:

UptimeRobot

Status page and uptime monitoring for growing teams

Stars
9,237

Highlight

Fullstack monitoring for web teams, pairing session replay with error tracking, logs and traces behind a few lines of setup.

Alternative to:

Datadog

Real-time observability for modern web applications

Stars
9,385

Coroot

eBPF based observability that maps services and audits them automatically, for teams who cannot instrument every application by hand.

Alternative to:

Datadog

Full-stack observability without code changes

Stars
7,991

OneUptime

One platform for uptime monitoring, on-call, status pages, incidents, logs, traces and metrics, replacing a shelf of separate SaaS tools.

Alternative to:

Datadog

Comprehensive monitoring and incident management platform

Stars
7,765

Maple

Maple is an OpenTelemetry observability platform for traces, logs, and metrics, aimed at teams that want to run their own telemetry stack.

Alternative to:

Datadog

OpenTelemetry observability with traces, logs, and metrics

Stars
1,921

Peekaping

Self-hosted uptime monitoring with an API-first Go server, status pages and more than twenty alert channels, aimed at DevOps teams.

Alternative to:

UptimeRobot

Self-hosted uptime monitoring you own and control

Stars
1,204

Temps

One self-hosted binary replaces the deployment platform, error tracker, analytics service, uptime monitor, email sender, and sandbox provider you pay for separately.

Alternative to:

Datadog

One self-hosted binary replaces Vercel, Sentry, and analytics tools

Stars
875

Wachd

Self-hosted alert intelligence that collects context around an incident and hands the on-call engineer a plain-English probable cause.

Alternative to:

PagerDuty

AI-powered root cause analysis for on-call alerts, self-hosted and air-gapped

Stars
42

StatusScout

Self-hosted monitoring for security headers, certificates, DNS and exposed files across your sites, alerting the moment a check starts failing.

Alternative to:

UptimeRobot

Complete website health monitoring and security scanning

Stars
16

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