Comparison

Fluentd vs Grafana Loki

On the evidence we track, Grafana Loki leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Fluentd58
Grafana Loki68
Score
Vioscale score
Fluentd58 / 100low · 43%
Grafana Loki68 / 100high · 76%
Pricing
Free tier
Fluentd
Grafana Loki
Model
Fluentdcommercial
Grafana Lokifreemium
Price level
Fluentdfree
Grafana Lokifree
Transparent
Fluentd
Grafana Loki
Integrations
Count
Fluentd500
Grafana Loki4
Security
Disclosure policy
Fluentd
Grafana Loki
Fedramp
Fluentd
Grafana Loki
Gdpr
Fluentd
Grafana Loki
Iso27001
Fluentd
Grafana Loki
Pci
Fluentd
Grafana Loki
Scorecard
Fluentd8.6
Grafana Loki8.1
Soc2
Fluentd
Grafana Loki
Reliability
Status page
Fluentd
Grafana Loki
Adoption
Dependent repos
Fluentd3,044
Grafana Loki334
Github stars
Fluentd13,578
Grafana Loki28,789
Activity
Commits last 30d
Fluentd23
Grafana Loki100
Release
Cadence days
Fluentd70
Grafana Loki7
History
Fluentd20 items
Grafana Loki20 items
License
Spdx
FluentdApache-2.0
Grafana LokiAGPL-3.0
Language
Primary
FluentdRuby
Grafana LokiGo
Market
Availability
Fluentd

Capabilities

Feature-by-feature on the axes that matter for log management software. “-” means undocumented, not absent.

Core
Pipeline role
FluentdShipper
Grafana LokiBackend
Search
Full-text log search
Fluentd-
Grafana Loki
Live tail / stream
Fluentd-
Grafana Loki
Processing
Structured parsing
Fluentd
Grafana Loki
PII redaction at ingest
Fluentd-
Grafana Loki-
Ops
Log-based alerting
Fluentd-
Grafana Loki
Dashboards / visualisation
Fluentd-
Grafana Loki
Storage
Retention tiering
Fluentd-
Grafana Loki-
Object-store columnar backend
Fluentd-
Grafana Loki
Interop
OpenTelemetry logs
Fluentd-
Grafana Loki-
Query language
Fluentd-
Grafana Loki-
Deployment
Hosting
FluentdSelf-hosted only
Grafana LokiCloud + self-hosted

What each one is

The product in its own terms, so the numbers below have context.

Fluentd

Fluentd is an open source data collector that consolidates logs and events from multiple applications and systems into a unified pipeline, enabling better data routing, processing, and consumption across your infrastructure.

Independently observed

Grafana Loki

Leader

Loki is a distributed log aggregation platform designed for simplicity and cost efficiency. It stores logs with only label metadata indexed rather than full-text content, making it straightforward to operate and integrate with Prometheus and Grafana for unified observability.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Fluentd

Open sourceFree tier
as of verify ↗

Grafana Loki

Leader
from $0.05/moHybridFree tier

Free tier available. Pro from $19/month + metered usage with volume discounts. Enterprise from $25,000/year.

  • FreeFree
    • All Grafana Cloud services with limited usage
    • Community support
    • 14 days retention for metrics, logs, traces, profiles, & k6 performance tests
  • ProFrom $19/month + usage with volume discounts
    • Pay as you go above the Free tier
    • 8X5 email support
    • 13 months retention for metrics
    • 30 days retention for logs, traces, profiles, & k6 performance tests
    • Automatic volume discounts
  • EnterpriseContact sales
    • Premium support
    • Custom retention
    • Deployment flexibility (Public Cloud, Federal Cloud, Bring Your Own Cloud)
    • Scalable pricing based on annual commit and volume discounts
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Fluentd
Grafana Loki
macOS
Fluentd
Grafana Loki
Windows
Fluentd
Grafana Loki
Linux
Fluentd
Grafana Loki
CLI
Fluentd
Grafana Loki
Deployment
Cloud / SaaS
Fluentd
Grafana Loki
Self-hosted
Fluentd
Grafana Loki

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Fluentd

Not documented yet.

Grafana Loki

Leader
4 total
  • Prometheus
  • Grafana
  • Kubernetes
  • Docker
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.