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OpenTelemetry Collector vs Grafana Alloy: catalog facts
OpenTelemetry Collector	Grafana Alloy
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free and open source from Grafana Labs.
Linux, Windows, macOS, Command line	Self-hosted
Connects supported receivers and exporters Processes traces, metrics and logs	One collector for logs and other telemetry Replacement for the retired Promtail
It forwards and processes telemetry rather than providing a complete storage dashboard.	Only a collector; needs Loki, Grafana or another backend to be useful Configuration takes time to learn
Downloadable app	Self-hosted
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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