Apache JMeter

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Score7.0

Rank#4 of 34

PriceFree

Free planYes

Runs onLinux, macOS, Self-hosted, Windows

Summary

Apache JMeter is a free, open-source Java application for load testing functional behavior and measuring performance. It can simulate heavy workloads on servers, networks, groups of servers, or other objects. Supported test types include HTTP and HTTPS, SOAP and REST, FTP, JDBC, LDAP, JMS, email protocols, TCP, Java objects, and native commands or shell scripts. Its test IDE can record plans from browsers or native applications, then help build and debug them. For load runs, JMeter provides command-line mode on Java-compatible systems and can generate dynamic HTML reports. It also supports remote testing, pluggable samplers and timers, scripting such as Groovy and BeanShell, and plugins for data analysis and visualization. Third-party open-source libraries support continuous integration with Maven, Gradle, and Jenkins. JMeter works at the protocol level: it does not execute JavaScript in pages or render them as a browser does. It requires Java 8 or later, and the project recommends command-line rather than GUI operation for load testing. The project also advises care with untrusted JMX files, which may execute code when opened.

Who it is for

JMeter suits users who need to load test servers, networks, or services across its supported protocols. It is also aimed at teams integrating tests through third-party libraries for Maven, Gradle, or Jenkins.

What is good

Free and open source.
Supports a wide range of test protocols.
Offers command-line and remote testing.
Can generate dynamic HTML test reports.

What to know first

Requires Java 8 or later.
Does not execute page JavaScript or render pages.
Untrusted JMX files may execute code when opened.
Load testing should use CLI mode, not GUI mode.

Verdict

JMeter offers broad protocol-level testing and extensibility without a listed software charge. It is not a browser renderer, and load tests should run in command-line mode.

Apache JMeter plans and pricing

All plans

Apache JMeter Free Open source software · Requires Java 8+ jmeter.apache.org · 30 Sept 2026

Compared on performance testing software

Free plan: Yesjmeter.apache.org
Load testing: Yesjmeter.apache.org
Stress testing: Yesjmeter.apache.org
Browser-based testing: Nojmeter.apache.org
Distributed load: Yesjmeter.apache.org
API testing: Yesjmeter.apache.org

Facts

Purpose: Apache JMeter is an open source, pure Java application for load testing functional behavior and measuring performance.jmeter.apache.org · 30 Sept 2026
Workloads: It can simulate heavy loads on servers, groups of servers, networks, or objects to assess strength and performance.jmeter.apache.org · 30 Sept 2026
Protocols: The site lists HTTP and HTTPS, SOAP and REST, FTP, JDBC, LDAP, JMS, email protocols, TCP, Java objects, and native commands or shell scripts among supported test types.jmeter.apache.org · 30 Sept 2026
Test authoring: Its test IDE supports recording test plans from browsers or native applications, building them, and debugging them.jmeter.apache.org · 30 Sept 2026
Execution: JMeter provides command-line mode for load testing on Java-compatible operating systems, including Linux, Windows, and Mac OS X.jmeter.apache.org · 30 Sept 2026
Reports: JMeter can generate a dynamic HTML report for test results.jmeter.apache.org · 30 Sept 2026
Extensibility: The core supports pluggable samplers, JSR223-compatible scripting such as Groovy and BeanShell, pluggable timers, and data analysis and visualization plugins.jmeter.apache.org · 30 Sept 2026
Integrations: The site describes continuous integration through third-party open source libraries for Maven, Gradle, and Jenkins.jmeter.apache.org · 30 Sept 2026
Distributed testing: JMeter supports remote testing, and its security guidance recommends enabling the security manager in distributed environments to reduce the risk of malicious code execution.jmeter.apache.org · 30 Sept 2026
Security model: JMeter assumes users trust JMX input files because opening one may in some cases trigger code execution; users evaluating untrusted files must provide isolation.jmeter.apache.org · 30 Sept 2026
Download integrity: The download page says to verify release files with PGP signatures and provides SHA-512 checksums.jmeter.apache.org · 30 Sept 2026
Browser limitation: JMeter operates at the protocol level and does not execute JavaScript in HTML pages or render pages as a browser does.jmeter.apache.org · 30 Sept 2026
Runtime requirement: JMeter is compatible with Java 8 or higher and should run on systems with a compliant Java implementation.jmeter.apache.org · 30 Sept 2026
Load test guidance: The user manual says to use CLI mode for load testing and not to run load tests in GUI mode.jmeter.apache.org · 30 Sept 2026
Community support: The project directs users to user mailing lists for configuration, setup, and usage questions and developer lists for source-code questions.jmeter.apache.org · 30 Sept 2026