Logging · head to head
Loki vs Telegraf

Telegraf
Logging
The Plugin-Driven Server Agent for Collecting and Reporting Metrics
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Loki the Grafana Cloud free tier caps log ingestion at 50 GB a month with 14 day retention; Telegraf telegraf's core is open source and free, and InfluxData names a separate Telegraf Enterprise tier for teams running it at scale with no price published
- They diverge on capability: Loki covers Log aggregation, Telegraf covers Metrics collection.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Loki and Telegraf actually diverge.
Identical on both: starting price (Free), pricing model (open-source), free tier (Yes), platforms (Web, Api), user rating (Not yet rated), category (Logging).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Loki
- Log aggregation
- Label-based indexing
- Real-time log streaming
- LogQL query language
Only in Telegraf
- Metrics collection
- System monitoring
- Application monitoring
- Plugin architecture
Both cover
- API
- Webhooks
- REST
- Web support
- Api support
What people use each for
The jobs each tool is most often brought in to do.
Loki
- Aggregating application and infrastructure logs with label based indexingnot Telegraf
- Querying logs alongside metrics in Grafananot Telegraf
Telegraf
- Log monitoringnot Loki
- Application performancenot Loki
- Security analyticsnot Loki
- Troubleshootingnot Loki
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Loki
- The Grafana Cloud free tier caps log ingestion at 50 GB a month with 14 day retention
- Paid log pricing is split across three separate meters, at $0.050 per GB processed, $0.400 per GB written and $0.100 per GB retained
- Retaining logs is billed separately from ingesting them, so keeping data costs on an ongoing basis rather than once
- The Pro plan carries a $19 a month platform fee before any usage charges
Telegraf
- Telegraf's core is open source and free, and InfluxData names a separate Telegraf Enterprise tier for teams running it at scale with no price published
Pricing, plan by plan
Loki
Free- FreeFree
- Log aggregation
- Label-based indexing
- Real-time log streaming
Telegraf
Free- FreeFree
- Metrics collection
- System monitoring
- Application monitoring
Which should you pick?
Choose Loki if
- You need log aggregation.
- You want to start without paying.
- You work on Web, Api.
- You also want label-based indexing.
Choose Telegraf if
- You need metrics collection.
- You want to start without paying.
- You work on Web, Api.
- You also want system monitoring.
Questions people ask
- Is Loki or Telegraf better?
- Neither clearly leads. Loki starts at Free and Telegraf at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Loki or Telegraf?
- Loki starts at Free and Telegraf at Free.
- Does Loki or Telegraf run on more platforms?
- Both run on Web, Api, so platform support will not decide this one for you.
- Can I use Loki for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Loki best used for?
- Loki is most often used for aggregating application and infrastructure logs with label based indexing, querying logs alongside metrics in grafana. Of those, aggregating application and infrastructure logs with label based indexing and querying logs alongside metrics in grafana are not what Telegraf is typically brought in for.
- What can Loki do that Telegraf cannot?
- Loki covers Log aggregation, Label-based indexing, Real-time log streaming, LogQL query language. Telegraf covers Metrics collection, System monitoring, Application monitoring, Plugin architecture. Both handle API, Webhooks, REST, Web support.
Answered from the vendors’ own pages
Loki: What does it cost to use Grafana Loki?
Loki is open source and free under the AGPLv3 license for self-hosted deployments. Grafana's managed Cloud Logs service includes a free tier up to 50GB of logs at no cost.
SourceTelegraf: Is Telegraf free to use?
Yes, Telegraf OSS is free and open source. It can be downloaded and used at no cost for collecting metrics from infrastructure, applications, and devices using over 400 community-tested plugins.
SourceLoki: Are there paid options for Loki beyond the free tier?
Yes. Grafana Cloud Logs offers paid tiers for teams and enterprises, and Enterprise Logs provides self-managed options with expert support for organizations with data localization or privacy requirements.
SourceTelegraf: What is Telegraf Enterprise and how much does it cost?
Telegraf Enterprise is a commercial offering for managing Telegraf at scale. It is licensed annually with entry-level packages starting at $18,000 per year, and pricing scales based on the total number of Telegraf agents under management.
SourceLoki: What license does open source Loki use?
Loki is released under the AGPLv3 license, which requires you to share modifications and publish your source code if you deploy modifications publicly.
SourceTelegraf: Can I try Telegraf Enterprise before purchasing?
Yes, a free tier of Telegraf Controller is available for evaluation. It allows you to store up to 20 configurations and manage up to 100 reporting agents.
SourceTelegraf: Can Telegraf OSS be used for commercial purposes?
Telegraf OSS is free and available as open source software, suitable for commercial deployments without licensing fees. For large-scale enterprise needs, Telegraf Enterprise is the commercial offering.
SourceTelegraf: How many plugins does Telegraf support?
Telegraf includes over 400 community-tested plugins that can connect to various data sources and destinations including Kubernetes, Docker, AWS, Google Cloud, Azure, Kafka, and many databases.
SourceRelated pages
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