Scouter is an open source APM (Application Performance Management) tool.
Java
2,179
2,624 commits
updated Oct 11, 2026

SCOUTER is an open source APM like new relic and appdynamics. (APM means application performance monitoring or application performance management.)
Monitoring targets (from scouter agent)
Monitoring targets (from Telegraf support) Since @2.0.0
Monitoring targets (from Zipkin-Scouter storage) Since @2.5.0

Users use application services on a system and the services use resources on the system. You should understand this context in order to manage the system performance efficiently. SCOUTER can help you.
Agent : gather performance information and send to the server
Server (Collector) : save the performance metrics from scouter agents or telegraf. The data is streamed to scouter client.
Client (Viewer) : client program based on RCP. (not support OSX Big Sur.)
Web API (Since @1.8.0) : scouter web apis to get counters, XLogs, profiles and another performance metrics via HTTP protocol.
Weaver (Since @2.17.0) : Provides the ability to directly control Scouter XLog and Profiles at the code level of Java applications.

Server plugin
Sample
Alert
Counter
Agent plugin
Licensed under the Apache License, Version 2.0
971 followers · starred Jan 2019
443 followers · starred Jan 2019
13 followers · starred Sep 2017
380 followers · starred Oct 2024
Scouter is an open source APM (Application Performance Management) tool.
Java
2,179
2,624 commits
updated Oct 11, 2026

SCOUTER is an open source APM like new relic and appdynamics. (APM means application performance monitoring or application performance management.)
Monitoring targets (from scouter agent)
Monitoring targets (from Telegraf support) Since @2.0.0
Monitoring targets (from Zipkin-Scouter storage) Since @2.5.0

Users use application services on a system and the services use resources on the system. You should understand this context in order to manage the system performance efficiently. SCOUTER can help you.
Agent : gather performance information and send to the server
Server (Collector) : save the performance metrics from scouter agents or telegraf. The data is streamed to scouter client.
Client (Viewer) : client program based on RCP. (not support OSX Big Sur.)
Web API (Since @1.8.0) : scouter web apis to get counters, XLogs, profiles and another performance metrics via HTTP protocol.
Weaver (Since @2.17.0) : Provides the ability to directly control Scouter XLog and Profiles at the code level of Java applications.

Server plugin
Sample
Alert
Counter
Agent plugin
Licensed under the Apache License, Version 2.0
971 followers · starred Jan 2019
443 followers · starred Jan 2019
13 followers · starred Sep 2017
380 followers · starred Oct 2024