Apache JMeter vs Locust

Apache JMeter9.1Visit Locust8.8Visit

Higher score Apache JMeter #3 in Performance Testing Software 9.1/10 Free plan Free plan✓ 4 of 5 features Visit Apache JMeter

vs

Locust #7 in Performance Testing Software 8.8/10 Free plan Free plan✓ 5 of 5 features Visit Locust

• Apache JMeter fits best

  Free, established protocol and web load testing

• Locust fits best

  Python teams building flexible open-source tests

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Side by side

Feature	Apache JMeter 9.1/10 Visit ↗	Locust 8.8/10 Visit ↗
At a glance
Editor score	9.1	8.8
Ranking	#3 in Performance Testing Software	#7 in Performance Testing Software
Best for	Free, established protocol and web load testing	Python teams building flexible open-source tests
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Cloud, Self-hosted
Platforms	Windows, macOS, Linux	Web, Windows, macOS, Linux
Support	Community, Docs	Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Apache JMeter 4/5 · Locust 5/5
Load testing	✓	✓
Stress testing	✓	✓
Browser-based testing	—	✓ (best)
Distributed load	✓	✓
API testing	✓	✓
Specs
Deployment model	Not checked yet	Hybrid
Max virtual users	Not checked yet	Not checked yet
Our review
Pros	Free and open source across Windows, macOS, and Linux Supports HTTP, SOAP, REST, databases, messaging, mail, TCP, and Java Includes headless execution, HTML reports, assertions, and distributed testing	Define test scenarios in regular Python code Run real-time, headless, or distributed tests Extend workloads with protocols, clients, and integrations
Cons	Does not render pages or execute browser JavaScript Uses an on-premise deployment model Distributed testing requires remote JMeter engines	Self-hosted deployment places operations on your team Browser testing uses documented Playwright or Selenium extensions Core HTTP/HTTPS coverage may require extensions for other protocols
Our verdict	Apache JMeter is an open-source, Java-based performance testing application for teams that need protocol-level load, stress, API, and distributed testing. It supports web applications, web services, databases, messaging systems, mail… Read the review →	Locust is an open-source performance and load testing tool for developers and test engineers who want to define simulated behavior in Python. It supports load, stress, browser, distributed-load, and API testing across web, Windows, macOS,… Read the review →

Strengths and trade-offs

• Apache JMeter — where it wins

  • Free and open source across Windows, macOS, and Linux
  • Supports HTTP, SOAP, REST, databases, messaging, mail, TCP, and Java
  • Includes headless execution, HTML reports, assertions, and distributed testing

  Where it doesn't

  • Does not render pages or execute browser JavaScript
  • Uses an on-premise deployment model
  • Distributed testing requires remote JMeter engines

• Locust — where it wins

  • Define test scenarios in regular Python code
  • Run real-time, headless, or distributed tests
  • Extend workloads with protocols, clients, and integrations

  Where it doesn't

  • Self-hosted deployment places operations on your team
  • Browser testing uses documented Playwright or Selenium extensions
  • Core HTTP/HTTPS coverage may require extensions for other protocols

• Apache JMeter9.1/10 · Free plan

  A free, established choice for protocol-level load, stress, API, and distributed testing.

  Visit Apache JMeterFull verdict →
• Locust8.8/10 · Free plan

  A flexible Python-based load testing tool for teams that want self-hosted control.

  Visit LocustFull verdict →