Best gatling.io Alternatives & Competitors in 2025

An open source load testing tool written in Python.

Key locust features:

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

Open Source

Apache JMeter™.

Key Apache JMeter features:

Open Source Extensibility Strong Community Support Supports Various Protocols

DCIM software reinvented. .

Key Hyperview features:

Asset Management Asset Tracking RFID Energy Management Capacity Management

Try for free paid Free Trial $600.0 / Annually (300 Assets)

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

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

Key Loader.io features:

Ease of Use Quick Test Setup Scalability Free Tier

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

Key OctoPerf features:

Ease of Use Cloud-Based Integration Support Realistic Test Scenarios

Official Twitter account of JMeter, the open source load testing tool by @TheAsf. Code: https://t.co/ADK2A8Pl14. Website: https://t.co/oc0MW2ksea.

Key JMeter features:

Open Source Platform Independence Extensive Protocol Support User-Friendly Interface

Open Source

Loadster is a full-featured load testing solution for websites, web apps, and web services.

Key Loadster features:

Scalability Detailed Reporting Easy Script Creation Cross-Platform Support

HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom.

Key Hey Load Generator features:

Ease of Use Lightweight Suitable for Small Tests Written in Go

Automation-friendly framework for Continuous Testing.

Key Taurus features:

Open Source User-Friendly Multi-Tool Integration Automation Support

Open Source

HTTP benchmarking tool capable of generating significant load on a multi-core CPU.

Key wrk features:

High Performance Ease of Use Lua Scripting Support Open Source

ab is a tool for benchmarking your web server.

Key Apache Benchmark features:

Simplicity Speed Wide Availability Open Source

Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases.

Key Grafana features:

Customizable Dashboards Wide Range of Data Sources Rich Plugin Ecosystem Open Source

Open Source

Tsung is an open-source multi-protocol distributed load testing tool.

Key Tsung features:

High Scalability Distributed Load Testing Protocol Support Real-time Monitoring