Fluentd vs Telegraf
Fluentd
fluentd.orgTelegraf
influxdata.comSide by side
| Figure | Fluentd | Telegraf |
|---|---|---|
| Price from | Free | $1,500/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 4 |
| Spec score · Telemetry Pipeline Software | 8.2 (#10) | 8.7 (#3) |
| Deployment options | self-hosted | Telegraf Controller is self-hosted as a single binary and runs on macOS, Linux, and Windows. |
| Purpose | Fluentd is an open source data collector for a unified logging layer. | Telegraf is an open source agent for collecting metrics from infrastructure, applications, and devices. |
| Security | The Fluentd homepage says vulnerabilities CVE-2026-44024, CVE-2026-44025, CVE-2026-44160, and CVE-2026-44161 were patched in Fluentd v1.19.3 and advises updating fluent-package to v6.0.4. | The maker says open source Telegraf has no native access control; Enterprise adds RBAC, API tokens, and TLS support. |
| Support | The project lists community help and commercial support from companies offering Fluentd enterprise services. | Enterprise Support offers Gold-level SLAs, expert troubleshooting for Telegraf Controller and official plugins, and guaranteed response times. |
Plans
Telegraf
- Telegraf (open source)Free
- Telegraf OSSFree
- Telegraf Enterprise$18,000 a year
- Telegraf Enterprise$18,000 a year
In their own words
Fluentd
Fluentd is a free, open-source data collector for creating a unified logging layer. It uses JSON to handle log collection, filtering, buffering, and output across sources and destinations. More than 500 community plugins connect it to data sources and outputs, including Elasticsearch and Kibana, Splunk, AWS S3, Kafka, BigQuery, Datadog, and OpenTelemetry. It supports memory and file buffering, failover, and high availability to help prevent data loss between nodes. The project reports that a vanilla instance uses 30–40 MB of memory and can process 13,000 events per second per core. Fluentd v1 runs on Linux, Mac OSX, and Windows; community distributions also include Docker images, a Kubernetes DaemonSet, and Ruby gems. It is self-hosted, and its components are available under the Apache 2 License. The project lists community help and commercial support from companies offering enterprise services. The homepage notes vulnerabilities patched in Fluentd v1.19.3 and advises updating fluent-package to v6.0.4.