OpenSourceHub
2 open-source alternatives found

Best Open-Source Alternatives
to Datadog in 2026

Stop paying for Datadog. These free, open-source tools give you full data ownership, no vendor lock-in, and deploy for as little as $5/month on your own VPS.

Top pick
WatchYourLAN
7.6k ⭐ · MIT
View

Open Source vs Datadog: Full Comparison

Feature Open SourceDatadog
Free to use (forever)
Self-hosted / private data
Open source (auditable code)
No vendor lock-in
Docker / 1-click deploy
Unlimited users / events
Custom domain & branding
Managed updates & backups
Built-in CDN & scaling
Enterprise SLA & support

Deploy WatchYourLAN in Minutes

Follow these steps to get your self-hosted instance up and running.

  1. 1
    git clone https://github.com/aceberg/WatchYourLAN

    Clone the repository

  2. 2
    npm install && cp .env.example .env

    Install dependencies and configure env

  3. 3
    npm run build && npm start

    Build and launch the application

  4. 4
    Configure reverse proxy (nginx/Caddy)

    Point your domain at the app

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$200 free credit for new users

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All Open-Source Alternatives to Datadog

Sorted by GitHub stars — the most popular community-backed options first.

WatchYourLAN

Monitoring
7.6k

Lightweight network IP scanner written in Go. With notifications, history, export to Grafana

Alt to DatadogGoMIT
Oct 2026
GitHub

Dashboard_EERO

Backend / BaaS
65

Self-hosted web dashboard and management suite for Amazon eero mesh networks with telemetry, AdGuard Home DNS sync, MQTT, Prometheus, and multi-arch Docker.

Alt to DatadogPythonMITDocker
Oct 2026
GitHubDeploy