Best Load And Performance Testing Products in 2025

Loader.io is a simple cloud-based load testing service.

Key Loader.io features:

Ease of Use Quick Test Setup Scalability Free Tier

Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Key Netumo features:

Monitoring SSL Monitoring Twitter SMS notifications

Try for free freemium $9.0 / Monthly (Lite plan)

BlazeMeter is a self- service performance load testing cloud tool.

Key Blazemeter features:

Comprehensive Load Testing Scalability Integration User-Friendly Interface

Apache JMeter™.

Key Apache JMeter features:

Open Source Extensibility Strong Community Support Supports Various Protocols

A high performance web server. Small! (125k static Linux-x86 binary with HTTP, FTP and SMB support).

Key gatling features:

Scalable Asynchronous Flexible Scripting Detailed Reports

Open Source

Load test websites, web apps, APIs, and mobile apps via the cloud. Use scripts to simulate user behavior for up to a million virtual users. Try it for free!

Key LoadStorm features:

Scalability Ease of Use Cost-Effective Cloud-Based

Cloud Testing Infrastructure | Cloud Testing Services and Tools for Websites & APIs.

Key LoadFocus features:

Ease of Use Cloud-Based Testing Comprehensive Reporting Integration Capabilities

freemium $99.0 / Monthly

Performance Testing & Load Testing Tool.

Key Loadium features:

Dedicated IP Performance Testing Load Testing Stress Test

freemium $99.0 / Monthly (Basic Plan)

OctoPerf is a SaaS load testing solution, based on JMeter.

Key OctoPerf features:

Ease of Use Cloud-Based Integration Support Realistic Test Scenarios

Managed load testing service built on top of the popular open-source project k6.

Key k6 Cloud features:

Ease of Use Scalability Integration Detailed Reporting

LoadUIWeb is a free desktop tool for performance, stress, scalability and load testing of web...

Key LoadUIWeb features:

Ease of Use Integration Customizable Test Scenarios Real-time Monitoring

Load and performance test solution for web based solutions.

An open source load testing tool written in Python.

Key locust features:

Scalability Python-based Web-based UI Real-time monitoring

Open Source

Network Stress Testing tool! A Ping tool based on Windows command-line (CMD)!

Key Fast DDoS Attack Cmd features:

Quick Deployment Simplicity Open Source