Fluent Bit vs Grafana Loki
A side-by-side comparison of two self-hosted monitoring & status options
— licensing, setup difficulty, resource needs, and what each one
replaces.
Not the right match-up?
Compare Fluent Bit with
choose an app… Uptime Kuma Netdata Grafana Prometheus Glances InfluxDB Grafana k6 Apache SkyWalking Beszel Vector Fluentd
Compare Grafana Loki with
choose an app… Uptime Kuma Netdata Elasticsearch Grafana Superset Prometheus Metabase Portainer CE Umami PostHog CasaOS Glance What's Up Status Postiz Netron Glances Homepage InfluxDB Grafana k6 Redash Plausible Dashy Apache SkyWalking Beszel Dockge Jaeger Vector Matomo Kibana GoAccess Cube cAdvisor Telegraf VictoriaMetrics Zipkin Upptime Phlare Logstash Sampler Dashboard Thanos Druid Dozzle Pinpoint APM Unleash Node Exporter Fluentd OpenSearch Rybbit Gatus Grafana Pyroscope Homer Quickwit Checkmate Healthchecks HyperDX Benphelps Homepage Heimdall Beszel Hub Alertmanager Graylog ntopng Scrutiny Coroot OpenTelemetry Collector Hertzbeat Statup Status WatchYourLAN NetAlertX Pulse Monitor Zabbix Graphite Speedtest Tracker Cortex Blackbox Exporter Grafana Tempo Grafana Mimir Kener Parca LibreNMS Monitoror Errbit Uptrace mtail Grafana OnCall Redis Exporter Vmstat Exporter PostgreSQL Exporter Grafana Alloy collectd Pushgateway Robusta Cstate Karma Kafka Exporter MySQL Server Exporter Kapacitor Perses Checkmk Kuberhealthy Icinga 2 PHP Server Monitor SNMP Exporter Process Exporter Munin VictoriaLogs Elasticsearch Exporter Grafana Beyla Nagios Core NGINX Prometheus Exporter Statping-ng Bugsink Smokeping Vigil Cacti Mailrise Domain Locker Proxmox VE Exporter Oncall Peekaping OpenNMS Horizon Shinken ElastAlert 2 Grafana Faro Sensu Go Percona Monitoring and Management Icinga Web 2 Kuma Mieru JSON Exporter Smokeping Prober Argus Monitor Web PHP-FPM Exporter Cloudprober Ping Exporter Monika IPMI Exporter SQL Exporter smartctl Exporter Pandora FMS Community Thruk NetXMS Apache Exporter NUT Exporter Speedtest Exporter Monit Naemon Bytebot Watch Fail2Ban Webinterface Lunalytics Observium Phoenix Panel
Feature Fluent Bit Grafana Loki Category Monitoring & Status Monitoring & Status License Apache-2.0 AGPL-3.0 Language C Go Setup difficulty Medium Medium Min. RAM 32 MB 512 MB Deployment docker, kubernetes, binary docker, kubernetes, helm GitHub stars ★ 8,020 ★ 28,687 First released 2015 2018 Replaces Logstash Splunk, Datadog Logs
Why pick each one
Choose Grafana Loki if… Cheap to run compared to full-text indexers Familiar Prometheus-style labels Grafana Loki details
Frequently asked questions Is Fluent Bit or Grafana Loki better? Neither is universally better. Grafana Loki has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Fluent Bit and Grafana Loki free and open-source? Yes. Fluent Bit is licensed under Apache-2.0 and Grafana Loki under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Fluent Bit and Grafana Loki with Docker? Fluent Bit: yes. Grafana Loki: yes.