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rsyslog

Paid#21 of 28 in Telemetry Pipeline Software

rsyslog: A flexible self-hosted pipeline for teams that need detailed log routing and buffering. Ranked #21 of 28 in Telemetry Pipeline Software by our editors (7.3/10); pricing: Open source; best for established self-hosted syslog environments.

7.3/10Editor score

Visit rsyslog

rsyslog7.3 Visit rsyslog

At a glance

Editor score
7.3 / 10
Pricing
Open source
Best for
Established self-hosted syslog environments
Paid from
€1,999/yr
Deployment model
Self_hosted
Founded
2004
Facts checked
21 Sep 2026

Where it wins
- Rulesets support conditional filtering, parsing, enrichment, and routing.
- Queues provide disk-assisted buffering and backpressure handling.
- Broad outputs include Kafka, databases, Elasticsearch, HTTP, and syslog.
Where it doesn't
- Deployment and operations remain self-managed.
- Enterprise support starts at €1,999 per year.
- The Unlimited plan lists up to 40 support hours.

Our verdict on rsyslog

rsyslog is an open-source event-processing engine for organizations that operate their own logging infrastructure. It collects data from files, journals, syslog, Kafka, and other inputs, then applies parsing, normalization, filtering, enrichment, and transformation rules. System administrators and infrastructure teams can route events to multiple destinations while retaining control over deployment and pipeline behavior across Linux and Windows environments.

The open-source engine is available without a license charge, while the published paid plans are annual enterprise support contracts. Enterprise Support costs €1,999 per year and includes priority email support, phone support, fixes for current rsyslog releases, and up to 20 support hours. Extended Enterprise Support costs €3,899 per year with up to 40 support hours. Unlimited Enterprise Support costs €19,999 per year and also lists up to 40 support hours. These plans add vendor support and release fixes rather than changing the underlying open-source engine.

Its strongest fit is detailed, self-hosted pipeline control. Rulesets handle conditional routing, templates support structured output and schema mapping, and fan-out sends events to multiple destinations. Disk-assisted queues address buffering and backpressure, while a Prometheus-format statistics endpoint exposes pipeline metrics. Integrations include Elasticsearch, OpenSearch, Grafana Loki, Kafka, Splunk HEC, HTTP, databases, and remote syslog. Organizations seeking a managed telemetry service or minimal operational responsibility should choose another approach; teams with established syslog environments and a need for configurable routing should consider rsyslog.

Your product? Our editors can test rsyslog in depth and publish a review, labelled as paid · from $149/mo →

rsyslog pricing

Plans Open sourcePaid No free plan — trial or paid only. Prices checked 21 Sep 2026.

See plans on rsyslog.com

All 3 rsyslog plans and prices →

rsyslog fact sheet

Free plan	Not verified
Paid from	€1,999/yr
Logs support	Yes
Metrics support	Yes
Traces support	Not verified
Transform rules	Yes
Multi-destination routing	Yes
Data enrichment	Yes
Deployment model	Self_hosted
Deployment	Self-hosted, Desktop
Platforms	Linux, Windows
Support	Email, Phone, Community, Docs
Built for	Small business, Mid-market, Enterprise (editorial estimate)
Integrations	8 integrations: Elasticsearch, OpenSearch, Grafana Loki, Kafka, Splunk HEC, HTTP …
Pricing	Open source (source)
Website	rsyslog.com
Facts checked	21 Sep 2026

rsyslog integrations

rsyslog lists 8 integrations on its own site.

Elasticsearch
OpenSearch
Grafana Loki
Kafka
Splunk HEC
HTTP
databases
remote syslog

Alternatives to rsyslog

See all rsyslog alternatives →

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Featured on iTechGuides

rsyslog is listed in our Telemetry Pipeline Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update