Grafana Loki
8.9#1 in log management software$19 usage-basedFree planWebAPILinuxSelf-hosted
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Loki suits teams that need to aggregate and query application or infrastructure logs and can manage a self-hosted deployment or use Grafana Cloud Logs. Its label-based indexing and LogQL are central considerations for selecting it.
You want what its maker publishes above — check its page for the details.