Comparison

Fluentd vs OpenObserve

On the evidence we track, OpenObserve leads this comparison with a composite score of 65/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Fluentd57
★OpenObserve65
Score
vioscaleAI score
Fluentd57 / 100medium · 54%
OpenObserve65 / 100medium · 68%
Pricing
Free tier
Fluentd✓
OpenObserve✓
Model
OpenObservefreemium
Price level
Fluentdfree
OpenObservelow
Starting price
Fluentd–
OpenObserve$0.01
Transparent
Fluentd–
OpenObserve✓
Integrations
Count
Fluentd500
OpenObserve18
Reliability
Sla pct
Fluentd–
OpenObserve99.9
Status page
Fluentd–
OpenObserve✓
Adoption
Dependent repos
Fluentd3,044
OpenObserve0
Github stars
Fluentd13,607
OpenObserve22,343
Package downloads weekly
Fluentd–
OpenObserve479
Activity
Commits last 30d
Fluentd29
OpenObserve100
Release
Cadence days
Fluentd70
OpenObserve5
History
Fluentd20 items
OpenObserve20 items
License
Spdx
FluentdApache-2.0
OpenObserveAGPL-3.0
Language
Primary
FluentdRuby
OpenObserveTypeScript
Market
Availability
Content
Faq
Fluentd5 items
OpenObserve7 items

Capabilities

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

Core
Pipeline role
FluentdShipper
OpenObserveBackend
Search
Full-text log search
Fluentd-
OpenObserve✓
Live tail / stream
Fluentd-
OpenObserve-
Processing
Structured parsing
Fluentd✓
OpenObserve✓
PII redaction at ingest
Fluentd-
OpenObserve✓
Ops
Log-based alerting
Fluentd-
OpenObserve✓
Dashboards / visualisation
Fluentd-
OpenObserve✓
Storage
Retention tiering
Fluentd-
OpenObserve✓
Object-store columnar backend
Fluentd-
OpenObserve✓
Interop
OpenTelemetry logs
Fluentd-
OpenObserveNative
Query language
Fluentd-
OpenObserveSQL, PromQL, VRL
Deployment
Hosting
FluentdSelf-hosted only
OpenObserveCloud + self-hosted

What each one is

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

Fluentd

Collects event data from various sources and forwards it to multiple destinations including databases, cloud services, and data platforms. Designed to centralize log infrastructure across applications and systems.

Independently observed

OpenObserve

Leader

OpenObserve is a cloud-native observability platform that unifies logs, metrics, traces, real user monitoring, and AI/LLM observability in a single system. Using Parquet columnar storage on object storage backends, it achieves significantly lower infrastructure costs than traditional platforms while supporting flexible deployment across cloud, on-premises, and air-gapped environments.

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 ↗

OpenObserve

Leader
from $0.01/gb/moHybridFree tier14-day trial

From $0.50/GB ingested + $0.01/GB queried. 14-day free trial (no card required). Self-hosted free up to 50 GB/day.

  • Cloud Professional$0.50/GB ingested + $0.01/GB queried, billed monthly. 30% discount with annual commitment.
    • Logs, Metrics, Traces, RUM, Session Replay, Error tracking
    • Unlimited users
    • Single Sign-On (SSO)
    • Role-Based Access Control (RBAC)
    • 19+ dashboard chart types
    • +3 more
  • Self-Hosted Enterprise FreeFree
    • All observability features
    • Single Sign-On (SSO)
    • Role-Based Access Control (RBAC)
    • Audit trail with 365-day immutable logs
    • Sensitive data redaction
    • +2 more
  • EnterpriseContact sales
    • Custom volume discounts
    • Bring Your Own Bucket (BYOB) - infinite retention
    • All observability features
    • AI-Powered Observability with incident management and AI SRE agent
    • Premium support
    • +5 more
as of verify ↗

Platform & deployment

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

Platforms
Web
Fluentd✗
OpenObserve✓
macOS
Fluentd✓
OpenObserve✓
Windows
Fluentd✓
OpenObserve✓
Linux
Fluentd✓
OpenObserve✓
CLI
Fluentd✓
OpenObserve✓
Deployment
Cloud / SaaS
Fluentd✗
OpenObserve✓
Self-hosted
Fluentd✓
OpenObserve✓
On-premise
Fluentd✗
OpenObserve✓
Hybrid
Fluentd✗
OpenObserve✓
Air-gapped
Fluentd✗
OpenObserve✓

Integrations

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

Fluentd

Not documented yet.

OpenObserve

Leader
21 total
  • OpenTelemetry
  • Prometheus
  • SQL
  • PromQL
  • Apache Parquet
  • Amazon S3
  • Google Cloud Storage
  • Azure Blob Storage
  • MinIO
  • Fluent Bit
  • Vector
  • Slack
  • PagerDuty
  • Okta
  • Microsoft Entra
  • Google Workspace
  • Kubernetes
  • Docker
  • Azure AD
  • Syslog
  • Terraform
Independently observed
Still deciding?

Fluentd or OpenObserve: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

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