SHSelfHostIndex

OpenTelemetry Collector vs Telegraf

A side-by-side comparison of two self-hosted monitoring & status options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
OP OpenTelemetry Collector Vendor-agnostic agent for telemetry collection and export VS TE Telegraf Plugin-driven server agent for collecting metrics
FeatureOpenTelemetry CollectorTelegraf
Deploy effortUnder-an-hour setupUnder-an-hour setup
Health score91 · Excellent95 · Excellent
CategoryMonitoring & StatusMonitoring & Status
LicenseApache-2.0MIT
LanguageGoGo
Setup difficultyMediumEasy
Min. RAM128 MB64 MB
Deploymentdocker, kubernetes, binarydocker, kubernetes, binary
GitHub stars★ 7,593★ 17,825
First released20202015
ReplacesDatadog AgentDatadog Agent

What are OpenTelemetry Collector and Telegraf?

OpenTelemetry Collector

The OpenTelemetry Collector receives, processes, and exports telemetry data such as traces, metrics, and logs. It is a vendor-neutral way to standardize how observability data flows to any backend.

  • Receives traces, metrics, and logs
  • Vendor-neutral pipelines
  • Rich processor ecosystem
  • Exports to any backend

Read the full OpenTelemetry Collector guide →

Telegraf

Telegraf is a plugin-driven agent for collecting, processing, aggregating, and writing metrics and events. It has hundreds of input and output plugins covering systems, databases, IoT sensors, and cloud services.

  • Hundreds of input plugins
  • Single static binary
  • Low resource footprint
  • Outputs to many backends

Read the full Telegraf guide →

OpenTelemetry Collector vs Telegraf: key differences

Both projects are written in Go. Licensing differs — Apache-2.0 for OpenTelemetry Collector versus MIT for Telegraf. Telegraf is the lighter option, starting around 64 MB of RAM against 128 MB for OpenTelemetry Collector. Telegraf is the more established project (first released 2015), while OpenTelemetry Collector arrived in 2020. Telegraf has the considerably larger community, at 17,825 GitHub stars versus 7,593.

Why pick each one

Choose OpenTelemetry Collector if…

  • Industry-standard telemetry hub
  • Highly extensible

Watch out for

  • Many extensions to choose from
  • Config can grow complex
OpenTelemetry Collector details

Choose Telegraf if…

  • Huge plugin catalog
  • Trivial to deploy

Watch out for

  • Configuration can get verbose
  • No built-in UI
Telegraf details

Frequently asked questions

Is OpenTelemetry Collector or Telegraf better?

Telegraf is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider OpenTelemetry Collector if its specific feature set fits your needs better.

Are OpenTelemetry Collector and Telegraf free and open-source?

Yes. OpenTelemetry Collector is licensed under Apache-2.0 and Telegraf under MIT. Both can be self-hosted at no software cost.

Can I run OpenTelemetry Collector and Telegraf with Docker?

OpenTelemetry Collector: yes. Telegraf: yes.

Which is lighter on resources, OpenTelemetry Collector or Telegraf?

Telegraf has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for OpenTelemetry Collector. Real-world usage depends on library size, user count, and enabled features.

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