Locust

Locust is an open source load and performance testing tool written in Python. It allows developers to test the performance of their web applications by simulating large numbers of concurrent users making requests.

Locust alternatives ➤

What is Locust?

Locust is an open source load testing and performance testing tool written in Python. It is designed to test the performance of web applications by simulating a large number of concurrent users making requests.

Some key features of Locust:

Simulates thousands of concurrent users making requests to target web apps
Can generate various user behaviors through its Python API
Has a web UI for visualizing response times, requests per second, and other metrics
Lightweight, distributed, and scalable architecture using Python
Easy installation through pip and runs on any system with Python installed
Open source and has an active community behind it
Integrates well with tools like JMeter, Gatling, Grafana, and more

Locust allows developers and testers to identify bottlenecks in their web apps before they go into production. By load testing early, teams can build more resilient services at scale. It is often used together with continuous integration pipelines.

Official Links

Official Website
locust.io

The Best Locust Alternatives

Top Apps like Locust

Apache JMeter, Siege, BlazeMeter, Low Orbit Ion Cannon, Apache Benchmark, k6, Loader.io, OctoPerf, Loadrunner, k6 Cloud, Flood.io, blitz.io, Fast DDoS Attack Cmd, LoadForge, Taurus, CloudTest, StresStimulus, SilkPerformer, HTTPulse, Gatling.io, HailStorm, YandexTank, LoadUIWeb, LoadBooster, LoadStorm, AgileLoad, StormForger, Loadster, WCat, Appvance, WebLOAD, Kraken By octoPerf, UbikLoadPack, AppPerfect Load Test, LoadFocus, Load Tester, Loadium, Cavisson NetStorm are some alternatives to Locust.

Sugggest an alternative ❐

Apache JMeter

Apache JMeter is a versatile open-source tool designed for performance and load testing of applications, allowing developers and testers to assess the scalability and performance of web applications and services. Widely used in the software testing and quality assurance domain, Apache JMeter provides a comprehensive set of features for simulating...

Siege

Siege is an open source load testing and benchmarking utility designed specifically to test web applications. It allows developers to simulate a large number of concurrent users accessing a web application to test its performance and stability under heavy load.Some key features of Siege include:Ability to simulate hundreds...

BlazeMeter

BlazeMeter is a performance and load testing platform designed for testing web and mobile applications. It provides an intuitive interface and advanced features to easily create, run, and analyze performance tests.Some key features and capabilities of BlazeMeter include:Ability to create and run scalable tests to simulate thousands or...

Low Orbit Ion Cannon

Low Orbit Ion Cannon (LOIC) is an open-source network stress testing application that was created by Praetox Technologies. It allows users to flood a target server with TCP, UDP, or HTTP requests in an attempt to overwhelm and take down the target.LOIC works by sending repeated requests to a...

Apache Benchmark

Apache Benchmark (ab) is an open-source command-line tool for benchmarking the performance of HTTP web servers. It is distributed as part of the Apache HTTP server project and is commonly installed alongside the Apache web server. ab allows users to simulate requests to test the responsiveness, throughput capacity, and scalability...

K6

k6 is an open-source load testing tool for testing the performance and reliability of web applications and services. It allows you to script tests in JavaScript to simulate user traffic and monitor how your system responds under different loads.Some key features of k6 include:Ability to simulate thousands of...

Loader.io

Loader.io is a cloud-based load testing service designed to stress test web applications and APIs. It allows developers to simulate a high number of concurrent users and identify performance issues or bottlenecks that may occur when an application experiences spikes in traffic.Some key features of Loader.io include...

OctoPerf

OctoPerf is a comprehensive performance monitoring and testing platform designed specifically for web applications. It provides deep visibility into critical performance metrics including page load times, throughput, errors, and more to help development and ops teams optimize application speed and reliability.Key features of OctoPerf include:Real user monitoring to...

Loadrunner

Loadrunner is a performance testing and monitoring software from Micro Focus. It is designed to help test and analyze software applications by generating realistic workloads and user scenarios.Some key features and capabilities of Loadrunner include:Load and stress testing to understand application behavior under heavy concurrent user loadsIdentify performance...

K6 Cloud

k6 Cloud is a SaaS performance testing platform provided by the developers of k6, an open-source load testing tool. It allows users to execute large-scale distributed load tests in the cloud without having to manage infrastructure.Key features of k6 Cloud include:Easy test recording - Tests can be recorded...

Flood.io

Flood.io is a SaaS load and performance testing platform optimized for DevOps teams to carry out comprehensive load testing right from their CI/CD pipelines. It allows users to simulate high traffic loads on their websites, APIs, and apps in order to identify performance issues under heavy user loads...

Blitz.io

Blitz.io is a powerful cloud-based load and performance testing tool used to stress test web applications and APIs. It allows users to simulate large volumes of traffic against their websites and applications in order to analyze stability and performance under high loads.Some key features of blitz.io include...

Fast DDoS Attack Cmd

Fast DDoS Attack Cmd is a command line utility that provides functionality to perform distributed denial-of-service (DDoS) attacks against IP addresses or domains. It works by flooding the target with TCP, UDP, or HTTP requests in an attempt to overwhelm it and take it offline.Using tools like Fast DDoS...

LoadForge

LoadForge is an open source load and performance testing tool designed for testing web applications. It provides the ability to generate high user loads on a system in order to identify performance bottlenecks or stability issues.Some key features of LoadForge include:Simulating hundreds or thousands of concurrent users accessing...

Taurus

Taurus is an open-source performance testing framework created by BlazeMeter for running automated tests and load testing on web applications. It simplifies performance and load testing by abstracting complex technical details and providing useful visualization.Key features of Taurus include:Support for various testing protocols like HTTP, Selenium, Appium, GRPC...

CloudTest

CloudTest is a SaaS solution designed specifically for load testing and performance analysis of web and mobile applications. It enables development and QA teams to validate application performance and identify bottlenecks before launching new features or upgrades.Key capabilities and benefits of CloudTest include:Intuitive user interface to easily create...

StresStimulus

StresStimulus is a comprehensive stress management application designed to help users understand, manage, and reduce stress in their daily lives. The software provides education on the causes and effects of stress, allows users to track their stress levels and mood over time, and offers guided relaxation sessions to promote calmness...

SilkPerformer

SilkPerformer is a comprehensive load and performance testing tool for web and database applications. It allows testers to simulate hundreds or thousands of virtual users accessing an application concurrently to identify bottlenecks and ensure scalability before launch.Key features include:Simulation of high user load to find capacity limitsStress testing...

HTTPulse

HTTPulse is an open-source web debugging proxy and HTTP monitor designed for developers and testers. It sits between web applications and backend servers to intercept all HTTP and HTTPS communication.Key features of HTTPulse include:Inspecting all HTTP requests and responses with full headers, params, cookies, and bodiesModifying requests and...

Gatling.io

Gatling.io is an open-source load and performance testing framework based on Scala, Akka and Netty. It provides a domain-specific language (DSL) to model user behavior and create scenarios that simulate load on a system.Some key features of Gatling include:Support for standard protocols like HTTP, WebSocket, JMS, MQTT...

HailStorm

HailStorm is an open-source distributed load testing tool used to test the performance and reliability of web applications and services under heavy load. It allows engineers to generate high volumes of simulated traffic from globally distributed servers to identify system bottlenecks, performance issues, and capacity limitations.Some key features of...

YandexTank

YandexTank is an open-source load and performance testing tool created by Yandex for measuring web application performance under heavy loads. It can simulate hundreds or thousands of concurrent users to apply realistic workloads and identify performance bottlenecks.Some key features of YandexTank include:Ability to load test up to 40,000 users...

LoadUIWeb

LoadUIWeb is an open source load testing and functional testing tool designed for testing web applications. It provides an intuitive interface for creating and running tests to validate functionality, simulate load, identify performance bottlenecks, and monitor the health of web apps.Key features of LoadUIWeb include:Record and replay functional...

LoadBooster

LoadBooster is a comprehensive load and performance testing tool designed specifically for testing web applications. It provides an intuitive graphical user interface that allows users to easily configure tests by recording browser sessions or writing scripts using the built-in editor.With LoadBooster, you can simulate thousands or even millions of...

LoadStorm

LoadStorm is a cloud-based load and performance testing platform used to test the stability and scalability of web and mobile applications under heavy load. It simulates a high volume of concurrent virtual users accessing an application to identify performance bottlenecks before launch.Key features of LoadStorm include:Ability to generate...

AgileLoad

AgileLoad is a comprehensive load and performance testing solution designed to help organizations test the reliability, scalability and speed of web and mobile applications. It simulates real-world user behavior using advanced scripting to generate load that accurately reflects actual usage patterns.Key features of AgileLoad include:Ability to simulate hundreds...

StormForger

StormForger is a SaaS platform for load and performance testing of web and mobile applications. The service allows developers, QA engineers, DevOps teams, and site reliability engineers to test how well their applications and infrastructure can handle increasing user traffic and demand.Some key capabilities and benefits of StormForger include...

Loadster

Loadster is an easy-to-use load and performance testing tool designed for testing web applications. It provides the ability to simulate a large number of concurrent users accessing your website or application, enabling you to identify and resolve bottlenecks before launch.Key features of Loadster include:Intuitive visual interface for quickly...

WCat

WCat is an open-source log analyzer and viewer designed to help analyze and make sense of log data. It supports a wide variety of log formats from different sources like web servers, databases, applications etc.Some of the key features of WCat include:Real-time streaming of log files for live...

Appvance

Appvance is a performance testing and monitoring platform for web and mobile applications. It is designed to:Automate performance and load testing to identify performance bottlenecks and fixes.Provide analytics and dashboards to monitor real-user performance and usage metrics.Stress test applications to understand scalability limits prior to production deployment...

WebLOAD

WebLOAD is a comprehensive load and performance testing tool for web applications. It is designed to test web application scalability, stability and performance under various user loads and conditions.Some key features of WebLOAD include:Simulating hundreds to hundreds of thousands of concurrent virtual users to generate real-world load on...

Kraken By octoPerf

Kraken is an open source load and API testing tool created by octoPerf. It is designed to be lightweight, easy to use, and enable developers to simulate heavy user load on web applications in order to measure overall system performance, reliability and scalability.Some key features of Kraken include:Ability...

UbikLoadPack

UbikLoadPack is an open-source load testing and performance analysis tool for testing the performance of web applications under various user load conditions. It simulates concurrent users sending requests to the target web application to determine overall system performance as load increases.Key features of UbikLoadPack include:Ability to simulate hundreds...

AppPerfect Load Test

AppPerfect Load Test is a comprehensive load and performance testing solution designed to help test and optimize the performance of web and mobile applications. It provides the ability to simulate hundreds or thousands of concurrent virtual users accessing an application to identify performance bottlenecks and ensure the system can handle...

LoadFocus

LoadFocus is a comprehensive load and performance testing tool for web and mobile applications. It provides the ability to simulate thousands or millions of concurrent virtual users accessing an application to identify performance bottlenecks and ensure the app can handle real-world traffic demands.Key features of LoadFocus include:Ability to...

Load Tester

Load Tester is a popular performance and load testing software used by developers and testers to determine if web and mobile applications can handle expected user traffic. It simulates hundreds or thousands of concurrent virtual users accessing an application to identify performance bottlenecks under load before the app goes into...

Loadium

Loadium is an open-source load testing tool designed to stress test web applications and measure their performance under different user load conditions. It simulates a high number of concurrent virtual users sending requests to the target web app to identify performance bottlenecks and ensure the system can handle expected traffic...

Cavisson NetStorm

Cavisson NetStorm is an end-to-end network performance monitoring and diagnostics software designed to provide IT teams with complete visibility into the performance of business-critical networks and applications. It features advanced network topology modeling, automated dependency mapping, machine learning-based anomaly detection, customizable dashboards and reports, and more.Some key capabilities and...