Apache JMeter

Apache JMeter is ranked #5 of 33 in performance testing software on Freedom251. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

Apache JMeter plans and pricing

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

Compared on performance testing software

Free plan: Yes
Load testing: Yes
Stress testing: Yes
Browser-based testing: No
Distributed load: Yes
API testing: Yes

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Apache JMeter

Purpose: Apache JMeter is an open source, pure Java application for load testing functional behavior and measuring performance.
Workloads: It can simulate heavy loads on servers, groups of servers, networks, or objects to assess strength and performance.
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.
Test authoring: Its test IDE supports recording test plans from browsers or native applications, building them, and debugging them.
Execution: JMeter provides command-line mode for load testing on Java-compatible operating systems, including Linux, Windows, and Mac OS X.
Reports: JMeter can generate a dynamic HTML report for test results.
Extensibility: The core supports pluggable samplers, JSR223-compatible scripting such as Groovy and BeanShell, pluggable timers, and data analysis and visualization plugins.
Integrations: The site describes continuous integration through third-party open source libraries for Maven, Gradle, and Jenkins.
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.
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.
Download integrity: The download page says to verify release files with PGP signatures and provides SHA-512 checksums.
Browser limitation: JMeter operates at the protocol level and does not execute JavaScript in HTML pages or render pages as a browser does.
Runtime requirement: JMeter is compatible with Java 8 or higher and should run on systems with a compliant Java implementation.
Load test guidance: The user manual says to use CLI mode for load testing and not to run load tests in GUI mode.
Price from: Free

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Where it ranks on Freedom251

Best Performance Testing Software in 2026#5 of 33

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Sources

jmeter.apache.org· checked 30 Sept 2026
jmeter.apache.org/security.html· checked 30 Sept 2026
jmeter.apache.org/download_jmeter.cgi· checked 30 Sept 2026
jmeter.apache.org/usermanual/get-started.html· checked 30 Sept 2026
jmeter.apache.org/mail.html· checked 30 Sept 2026