APM ToolsUnclaimed

Glowroot

Open source Java APM

Also known as
glowroot

What is Glowroot?

Glowroot is an easy-to-use, low-overhead Java APM that helps developers identify and resolve application performance issues with minimal performance impact.

Independently observed

Glowroot pricing

We don't have Glowroot's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.

What Glowroot does

The capabilities that matter for apm tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.

Instrumentation
Auto-instrumentation
Distributed tracing
Insight
Service map
Code / continuous profiling
Database monitoring
-
Error analytics
-
Real-user monitoring
-
SLO / error-budget tracking
-
Intelligence
Anomaly / root-cause AI
-
Standards
OpenTelemetry support
-
Core
Language agents
Java
Deployment
Hosting
Self-hosted only
Independently observed

Platform & deployment

Independently observed
Deployment
  • Self-hosted

Glowroot alternatives

Other apm tools we track, ranked by the same independent score.

Independent · unbought · dated

The Vioscale score: one lens on the evidence

Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Glowroot, not the verdict.

Balanced composite 67 / 100
low · 2%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Capabilities6712.00805.4
Github Stars05.000.0-
Integrations016.000.0-
Github Activity018.000.0-
Release Cadence010.000.0-
Security Posture022.000.0-
Package Downloads026.000.0-
Stackoverflow Activity012.000.0-

Computed . Re-weight it by intent, or see the full method.

All data & sourcesshow ↓

Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.

Features

AttributeValueEvidence
Capabilities{"hosting":"self","languages":"Java","service_map":true,"code_profiling":true,"distributed_tracing":true,"auto_instrumentation":true}mediumsource · 2026-08-03 · 60%

Pricing

AttributeValueEvidence
Modelopen_sourcemediumsource · 2026-08-03 · 60%
Price levelfreemediumsource · 2026-08-03 · 60%
TransparentYesmediumsource · 2026-08-03 · 60%

Reliability

AttributeValueEvidence
Status pageYesmediumsource · 2026-08-03 · 60%