Comparison

Elastic (ELK Stack) vs Fluent Bit

On the evidence we track, Elastic (ELK Stack) leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Elastic (ELK Stack) full profile →Fluent Bit full profile →

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★Elastic (ELK Stack)64

Fluent Bit51

Attribute comparison across 2 tools
Attribute	Elastic (ELK Stack)Leader	Fluent Bit
vioscaleAI score	64 / 100medium · 65%	51 / 100medium · 54%
Pricing
Free tierpricing.free_tier	✓	✓
Modelpricing.model	commercial	commercial
Price levelpricing.price_level	high	free
Transparentpricing.transparent	✓	-
Integrations
Countintegrations.count	6	70
Security
Disclosure policysecurity.disclosure_policy	✓	-
Gdprsecurity.gdpr	✓	-
Iso27001security.iso27001	✓	-
Scorecardsecurity.scorecard	5.6	5.7
Trust centersecurity.trust_center	https://www.elastic.co/legal/ethics-and-compliance	-
Vulnerabilitiessecurity.vulnerabilities	Count: 45 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.elasticsearch%3Aelasticsearch&per_page=100 · Last 12m: 2 · Max severity: HIGH	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=homebrew&package_name=fluent-bit&per_page=100 · Last 12m: 0
Reliability
Sla pctreliability.sla_pct	99.95	-
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	18,551	1
Github starsadoption.github_stars	78,270	8,155
Activity
Commits last 30dactivity.commits_last_30d	100	100
Release
Cadence daysrelease.cadence_days	-	8
Historyrelease.history	20 items	20 items
License
Spdxlicense.spdx	-	Apache-2.0
Language
Primarylanguage.primary	Java	C
Market
Availabilitymarket.availability	Available worldwide · Popular in US, GB · HQ US	-
Content
Faqcontent.faq	7 items	6 items

Score

vioscaleAI score

Elastic (ELK Stack)64 / 100medium · 65%

Fluent Bit51 / 100medium · 54%

Pricing

Free tier

Elastic (ELK Stack)✓

Fluent Bit✓

Model

Elastic (ELK Stack)commercial

Fluent Bitcommercial

Price level

Elastic (ELK Stack)high

Fluent Bitfree

Transparent

Elastic (ELK Stack)✓

Fluent Bit–

Integrations

Count

Elastic (ELK Stack)6

Fluent Bit70

Security

Disclosure policy

Elastic (ELK Stack)✓

Fluent Bit–

Gdpr

Elastic (ELK Stack)✓

Fluent Bit–

Iso27001

Elastic (ELK Stack)✓

Fluent Bit–

Scorecard

Elastic (ELK Stack)5.6

Fluent Bit5.7

Trust center

Elastic (ELK Stack)https://www.elastic.co/legal/ethics-and-compliance

Fluent Bit–

Vulnerabilities

Elastic (ELK Stack)Count: 45 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.elasticsearch%3Aelasticsearch&per_page=100 · Last 12m: 2 · Max severity: HIGH

Fluent BitCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=homebrew&package_name=fluent-bit&per_page=100 · Last 12m: 0

Reliability

Sla pct

Elastic (ELK Stack)99.95

Fluent Bit–

Status page

Elastic (ELK Stack)✓

Fluent Bit–

Adoption

Dependent repos

Elastic (ELK Stack)18,551

Fluent Bit1

Github stars

Elastic (ELK Stack)78,270

Fluent Bit8,155

Activity

Commits last 30d

Elastic (ELK Stack)100

Fluent Bit100

Release

Cadence days

Elastic (ELK Stack)–

Fluent Bit8

History

Elastic (ELK Stack)20 items

Fluent Bit20 items

License

Spdx

Elastic (ELK Stack)–

Fluent BitApache-2.0

Language

Primary

Elastic (ELK Stack)Java

Fluent BitC

Market

Availability

Elastic (ELK Stack)Available worldwide · Popular in US, GB · HQ US

Fluent Bit–

Content

Faq

Elastic (ELK Stack)7 items

Fluent Bit6 items

Capabilities

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

Capability comparison for Log Management Software
Capability	Elastic (ELK Stack)	Fluent Bit
Core
Pipeline role	End-to-end platform	Shipper
Search
Full-text log search	✓	-
Live tail / stream	✓	-
Processing
Structured parsing	✓	✓
PII redaction at ingest	-	-
Ops
Log-based alerting	✓	-
Dashboards / visualisation	✓	-
Storage
Retention tiering	✓	-
Object-store columnar backend	✗	-
Interop
OpenTelemetry logs	-	Native
Query language	ES\|QL (with native PromQL support)	SQL
Deployment
Hosting	Cloud + self-hosted	Cloud + self-hosted

Core

Pipeline role

Elastic (ELK Stack)End-to-end platform

Fluent BitShipper

Full-text log search

Elastic (ELK Stack)✓

Fluent Bit-

Live tail / stream

Elastic (ELK Stack)✓

Fluent Bit-

Processing

Structured parsing

Elastic (ELK Stack)✓

Fluent Bit✓

PII redaction at ingest

Elastic (ELK Stack)-

Fluent Bit-

Ops

Log-based alerting

Elastic (ELK Stack)✓

Fluent Bit-

Dashboards / visualisation

Elastic (ELK Stack)✓

Fluent Bit-

Storage

Retention tiering

Elastic (ELK Stack)✓

Fluent Bit-

Object-store columnar backend

Elastic (ELK Stack)✗

Fluent Bit-

Interop

OpenTelemetry logs

Elastic (ELK Stack)-

Fluent BitNative

Query language

Elastic (ELK Stack)ES|QL (with native PromQL support)

Fluent BitSQL

Deployment

Hosting

Elastic (ELK Stack)Cloud + self-hosted

Fluent BitCloud + self-hosted

What each one is

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

Elastic (ELK Stack)

Leader

Open-source system for collecting logs and application data, indexing them for searchability, and providing interactive dashboards for analysis. Supports both cloud-hosted and self-managed deployments.

Independently observed

Fluent Bit

A fast, lightweight data pipeline tool that processes and forwards logs, metrics, and traces with native OpenTelemetry support, optimized for cloud and containerized deployments.

Independently observed

Pricing

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

Elastic (ELK Stack)

Leader

from $99/moSubscriptionFree tier14-day trial

From $99/month. Subscription model with free 14-day trial. Usage-based pricing for cloud resources (120 GB storage / 2 zones baseline).

StandardFrom $99/month. Free 14-day trial.
- Distributed Elasticsearch Platform on AWS, Azure, GCP
- Elasticsearch Query Language (ES|QL)
- AutoOps monitoring
- Hundreds of out-of-the-box integrations
- Discover, dashboards, alerting
- +4 more
GoldFrom $114/month. Includes reporting and third-party integrations.
- Everything in Standard
- Reporting
- Third-party alerting actions
- Watcher
- Enterprise Search
- +2 more
PlatinumFrom $131/month. ML and advanced security included.
- Everything in Gold
- Advanced security features
- Machine learning: anomaly detection, supervised learning
- Cross-cluster replication
- Semantic and vector search with ML models (ELSER, e5)
- +5 more
EnterpriseFrom $184/month. Full AI suite and advanced automation.
- Everything in Platinum
- Searchable snapshots in cold/frozen tiers
- Elastic Maps Server
- Cross-cluster search and ES|QL Data Federation
- GPU inference with Elastic Inference Service
- +10 more

as of 2026-08-14verify ↗

Fluent Bit

Open source

as of 2026-09-14verify ↗

Platform & deployment

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

Platform and deployment support comparison
Supports	Elastic (ELK Stack)	Fluent Bit
WebPlatforms	✓	✗
macOSPlatforms	✗	✓
WindowsPlatforms	✗	✓
LinuxPlatforms	✗	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✗	✓
HybridDeployment	✗	✓

Platforms

Web

Elastic (ELK Stack)✓

Fluent Bit✗

macOS

Elastic (ELK Stack)✗

Fluent Bit✓

Windows

Elastic (ELK Stack)✗

Fluent Bit✓

Linux

Elastic (ELK Stack)✗

Fluent Bit✓

CLI

Elastic (ELK Stack)✓

Fluent Bit✓

Deployment

Cloud / SaaS

Elastic (ELK Stack)✓

Fluent Bit✓

Self-hosted

Elastic (ELK Stack)✓

Fluent Bit✓

On-premise

Elastic (ELK Stack)✗

Fluent Bit✓

Hybrid

Elastic (ELK Stack)✗

Fluent Bit✓

Integrations

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

In common (2)

Slack
AWS S3

Elastic (ELK Stack)

Leader

32 total - 30 not shared

OpenAI
Anthropic
Jina AI
Amazon Bedrock
Google Vertex AI
Microsoft Azure AI
Mistral
Cohere
Hugging Face
NVIDIA
IBM watsonx
LlamaIndex
LangChain
Vectorize.io
Jira
PagerDuty
ServiceNow
Microsoft Teams
xMatters
IBM Resilient
Filebeat
Metricbeat
Heartbeat
Elastic Agent
+6 more

Independently observed

Fluent Bit

16 total - 14 not shared

Google Cloud Storage
Kubernetes
OpenTelemetry
Syslog
Prometheus
Windows Event Log
Podman
NVIDIA GPU
HTTP
Google Chronicle
Fluent Forward
AWS CloudWatch Logs
Elasticsearch
ArvanCloud CloudLogs

Independently observed

Still deciding?

Elastic (ELK Stack) or Fluent Bit: 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.