Compare software

collectd vs Grafana Alloy: catalog facts
collectd	Grafana Alloy
Free Free and open source.	Free Free and open source from Grafana Labs.
Linux, Self-hosted	Self-hosted
Small and fast, written in C Runs on embedded systems	One collector for logs and other telemetry Replacement for the retired Promtail
Collects data only; graphs need another tool Stable 5.x branch is old while 6.0 is still a release candidate	Only a collector; needs Loki, Grafana or another backend to be useful Configuration takes time to learn
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
No account needed	No account needed
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 23, 2026

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