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Logstash vs Fluentd: catalog facts
Logstash	Fluentd
Free Free to download; Elastic sells paid subscriptions and hosted services for the wider…	Free Free and open source; commercial support is sold separately by other companies.
Self-hosted	Self-hosted
Ingests from many sources at the same time Grok parsing turns unstructured logs into fields	More than 500 plugins for inputs and outputs Decouples log sources from storage backends
Designed around the Elastic Stack Server-side pipeline that needs configuration and upkeep	Aimed at server infrastructure rather than a single desktop Needs configuration and plugins chosen for each setup
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.