TOOL SIGNAL / ACTIVE

Apache JMeter

Apache Software Foundation

Load Testing Open Source Self-hosted ♥ pick ✓ pick
Official site ↗ Source repo ↗
Pricing model
Free; Apache License 2.0.
First released
1998
Latest release
5.6.3
Last verified
Answer

Apache JMeter is an open source, 100% pure Java application designed to load test functional behavior and measure performance, originally focused on web applications but expanded to other test functions.

About

Apache JMeter is an open source, 100% pure Java application designed to load test functional behavior and measure performance, originally focused on web applications but expanded to other test functions.

Best for

  • Load Testing scenarios across typical web and service stacks
  • Teams that prefer open-source licensing and self-hosting options
  • Groups comfortable scripting in Java, Groovy

Not the best fit when

  • Teams unwilling to operate generators, results storage, and scaling

Architecture and concurrency

Apache JMeter is commonly operated as self-hosted software with scenario authoring in Java, Groovy. Concurrency and distribution depend on how you size workers or injectors.

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Features

  • Supports various test types: Web (HTTP/HTTPS), FTP, JDBC, LDAP, Java, and JUnit
  • Thread Group management for load testing scenarios
  • Test plan construction, parameterization, and script recording capabilities
  • Listeners for data visualization and metrics collection
  • Distributed testing support

Latest release

5.6.3 · 2024-01-09

Included various bug fixes, such as resolving issues with summary report response times, NullPointerExceptions in timers, and restoring binary API compatibility. Also included non-functional improvements like Gradle updates and migration of certain tests to Kotlin and JUnit 5.

Pricing

Open source (free)

Specs

Scripting
JavaGroovy
Protocols
HTTPHTTPSJDBCJMSFTPTCP
Operating systems
WindowsmacOSLinux
Tags
javaguiplugins
Repo health
★ 9523 · last push 2026-08-27

Sources

SHOW SOURCES

LAST VERIFIED · 2026-08-11 · GROUNDED VIA EXA · CURATED BY NAVEENKUMAR NAMACHIVAYAM

Frequently asked

ANSWER-SHAPED
Who is Apache JMeter for?

Apache JMeter is best for engineers designing load, stress, and performance tests for web and service systems. It is open source, so teams can self-host and extend it. Vendor: Apache Software Foundation. Deployment model: self-hosted. Free; Apache License 2.0. Confirm details against the official site and a short proof-of-concept in your environment.

How does Apache JMeter differ from Grafana k6?

Compared with Grafana k6, scripting centers on Java, Groovy rather than JavaScript, TypeScript. Apache JMeter lists protocols HTTP, HTTPS, JDBC, JMS, FTP, TCP; Grafana k6 lists HTTP, HTTPS, WebSocket, gRPC. Status is active versus active. Use the Test Rig to compare full specs side by side before a proof-of-concept.

What scripting language and concurrency model does Apache JMeter use?

Apache JMeter uses Java, Groovy for scripting or scenario definition. Runtime model: GUI-oriented authoring with optional scripting for advanced flows. OS support: Windows, macOS, Linux. Protocols: HTTP, HTTPS, JDBC, JMS, FTP, TCP. Match these to how your team already authors tests and which systems you must drive under load.

What is the cloud or enterprise path for Apache JMeter?

Apache JMeter is primarily self-hosted; teams typically run generators on their own machines, CI runners, or private cloud. Plan for generator capacity, network access to targets, and result storage yourself. As open source, commercial support or hosted siblings may exist separately. Check the official site. Pricing note: Free; Apache License 2.0.

What are known limitations of Apache JMeter?

Apache JMeter limitations to weigh: self-hosted tools require you to provision, scale, and observe load generators yourself. Status: active. Always validate against your target protocols and scale with a proof-of-concept. Confirm details against the official site and a short proof-of-concept in your environment.