Comparison

Apache SkyWalking vs Glowroot

No clear leader: Apache SkyWalking (53.3) and Glowroot (52.6) are within the 5-point margin; treat as a tie. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Apache SkyWalking53
Glowroot53
Score
Vioscale score
Apache SkyWalking53 / 100medium · 54%
Glowroot53 / 100medium · 53%
Pricing
Free tier
Apache SkyWalking
Glowroot
Model
Apache SkyWalkingopen_source
Glowrootopen_source
Price level
Apache SkyWalkingfree
Glowrootfree
Transparent
Apache SkyWalking
Glowroot
Integrations
Count
Apache SkyWalking14
Glowroot50
Reliability
Status page
Apache SkyWalking
Glowroot
Adoption
Dependent repos
Apache SkyWalking106
Glowroot13
Github stars
Apache SkyWalking24,930
Glowroot1,355
Activity
Commits last 30d
Apache SkyWalking20
Glowroot27
Release
Cadence days
Apache SkyWalking89
Glowroot19
History
Apache SkyWalking20 items
Glowroot20 items
License
Spdx
Apache SkyWalkingApache-2.0
GlowrootApache-2.0
Language
Primary
Apache SkyWalkingJava
GlowrootJava

Capabilities

Feature-by-feature on the axes that matter for apm tools. “-” means undocumented, not absent.

Instrumentation
Auto-instrumentation
Apache SkyWalking
Glowroot
Distributed tracing
Apache SkyWalking
Glowroot
Insight
Service map
Apache SkyWalking
Glowroot-
Code / continuous profiling
Apache SkyWalking
Glowroot
Database monitoring
Apache SkyWalking
Glowroot
Error analytics
Apache SkyWalking
Glowroot
Real-user monitoring
Apache SkyWalking
Glowroot-
SLO / error-budget tracking
Apache SkyWalking-
Glowroot-
Intelligence
Anomaly / root-cause AI
Apache SkyWalking
Glowroot-
Standards
OpenTelemetry support
Apache SkyWalkingOTLP ingest
GlowrootNone
Core
Language agents
Apache SkyWalking10+ language agents supported
GlowrootJava
Deployment
Hosting
Apache SkyWalkingCloud + self-hosted
GlowrootSelf-hosted only

What each one is

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

Apache SkyWalking

An open-source observability platform combining distributed tracing, metrics, logs, and profiling in one interface. Provides automatic instrumentation across 10+ languages, interactive service topology visualization, database monitoring, and an AI assistant for answering observability questions in natural language.

Independently observed

Glowroot

Glowroot is a Java application performance monitoring (APM) tool that captures request traces, provides continuous profiling, response time analysis, and database monitoring with extensive library and framework instrumentation.

Independently observed

Pricing

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

Apache SkyWalking

Open sourceFree tier
as of verify ↗

Glowroot

Open source
as of verify ↗

Platform & deployment

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

Platforms
Web
Apache SkyWalking
Glowroot
CLI
Apache SkyWalking
Glowroot
Deployment
Cloud / SaaS
Apache SkyWalking
Glowroot
Self-hosted
Apache SkyWalking
Glowroot

Integrations

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

In common (2)
  • Kafka
  • Redis

Apache SkyWalking

14 total - 12 not shared
  • Apache APISIX
  • Grafana
  • OpenTelemetry Collector
  • Amazon Bedrock
  • OpenAI
  • WeChat Mini Program
  • Alipay Mini Program
  • MySQL
  • PostgreSQL
  • Envoy
  • DeepSeek
  • Claude Sonnet
Independently observed

Glowroot

39 total - 37 not shared
  • Apache Camel
  • Cassandra
  • EJB
  • Elasticsearch
  • Grails
  • Hibernate
  • Apache HttpClient
  • Apache HttpAsyncClient
  • AsyncHttpClient
  • OkHttp
  • JavaMail
  • JAX-RS
  • JAX-WS
  • JDBC
  • JMS
  • JSF
  • JSP
  • JUL
  • Log4j
  • Logback
  • MongoDB
  • Netty
  • Play Framework
  • Quartz Scheduler
  • +13 more
Independently observed

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

Apache SkyWalking vs Glowroot: an evidence-based comparison · Vioscale