head to head · open source
NetData vs alertmanager
NetData has 81,255 GitHub stars, 6,717 forks, 393 open issues and last shipped yesterday. alertmanager has 8,677 stars, 2,495 forks, 419 open issues and last shipped 2 days ago. NetData leads on adoption by 836% (81,255 vs 8,677 stars). NetData is written in Go under GPL-3.0; alertmanager is written in Go under Apache-2.0. NetData has attracted 8% as many forks as stars, alertmanager 29%. NetData was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| NetData | alertmanager | |
|---|---|---|
| GitHub stars | ★ 81K | ★ 8.7K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 6.7K | ⑂ 2.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick NetData if
- You weight community size — 81K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick alertmanager if
- You want the alertmanager feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and alertmanager fits your workflow better
About NetData
X Ray Vision for your infrastructure! Every Metric, Every Second. No BS. Visit our Home Page MENU: WHO WE ARE KEY FEATURES GETTING STARTED HOW IT WORKS FAQ DOCS COMMUNITY CONTRIBUTE LICENSE [!WARNING] People get addicted to Netdata. Once you use it on your systems, there's no going back. WHO WE ARE Netdata is an open source, real time infrastructure monitoring platform. Monitor, detect, and act across your entire infrastructure. Core Advantages: Instant Insights – With Netdata you can access per second metrics and visualizations. Zero Configuration – You can deploy immediately without complex setup. ML Powered –…
read the full NetData overview →
About alertmanager
Alertmanager [ ][circleci] [ ][quay] [ ][hub] The Alertmanager handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integrations such as email, PagerDuty, OpsGenie, or many other mechanisms thanks to the webhook receiver. It also takes care of silencing and inhibition of alerts. Documentation Install There are various ways of installing Alertmanager. Precompiled binaries Precompiled binaries for released versions are available in the download section on prometheus.io. Using the latest production release binary…
read the full alertmanager overview →
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Frequently asked questions
Is NetData or alertmanager more popular?
NetData has 81,255 GitHub stars and alertmanager has 8,677. NetData has the larger community by that measure.
Are NetData and alertmanager free?
Both are open source. NetData is licensed under GPL-3.0 and alertmanager under Apache-2.0. Neither carries a licence fee.
What is the difference between NetData and alertmanager?
NetData is written in Go and alertmanager in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, NetData or alertmanager?
Choose NetData if you want the larger community (81,255 stars) or its GPL-3.0 licence terms. Choose alertmanager if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.