Gatling — Developer Tools

Gatling replaces guesswork with data: write load tests in Scala or Kotlin, simulate thousands of users hitting your web app, and get real-time metrics on response times and error rates. It's built for teams that need continuous performance testing without sacrificing control.

What it does

Gatling is an open-source load testing framework that lets you define user scenarios as code. It generates HTTP requests, measures server performance, and produces HTML reports with charts and stats. The cloud version (Gatling Enterprise) runs tests at scale without managing infrastructure. Its AI-powered insights and no-code test creation help teams move faster.

Best for

• DevOps engineers running CI/CD pipeline performance checks
• QA teams validating app stability under traffic spikes
• Developers who want code-based test scenarios (no GUI drag-and-drop)

Who it's not for

• Teams looking for a purely GUI-based or low-code tool — Gatling's strength is its code-first approach, though a no-code option exists.

Real use cases

• Backend performance testing for e-commerce platforms during sales events
• API stress testing for SaaS applications before major releases
• Infrastructure capacity planning using distributed load generation

• Code-based test scenarios — Write tests in Scala or Kotlin with a fluent DSL, or use the no-code generator for quick tests
• Real-time monitoring — Live dashboard shows response times, throughput, and errors during test execution
• HTML reports — Auto-generated reports with charts, percentiles, and request details for easy sharing
• CI/CD integration — Run tests in Jenkins, GitLab CI, or GitHub Actions as part of your pipeline
• Distributed load generation — Gatling Enterprise runs tests from multiple geographic locations for realistic traffic
• Protocol support — HTTP, HTTPS, WebSocket, and more for versatile load testing
• AI Coding Assistants — AI helps convert JMeter scripts and provides insights on test reports

Gatling pricing: from €89/mo. Billing model: Freemium.

Basic — €89/month (annual) / €99/month (monthly)

Starter-pack for small projects: up to 60,000 VUs, 1 hour of testing, 1 Load Generator, 2 seats, community support.

Team — €356/month (annual) / €396/month (monthly)

Best for growing teams: up to 180,000 VUs, 5 hours of testing, 3 Load Generators, 10 seats, distributed testing, professional support.

Enterprise — On request

Tailor-made solutions: custom VU limits, custom testing hours, custom Load Generators, custom seats, all features, premium support.

All plans include a free trial. No hidden fees or long-term commitments.

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