TL;DR - Gatling
- Gatling is a load testing tool for measuring web application performance under stress
- It simulates thousands of users with code-based scenarios written in Scala or Java
- Free and open-source, Enterprise plans available
Pricing: Free plan available
Best for: Growing teams
Score: 82/100
Pricing Plans
free trialMost Popular
Open Source
Free
Free
- Load testing
- Scala DSL
- Reports
Enterprise
Free
Custom
- Cloud
- Real-time metrics
- Support
About Gatling
Gatling runs load tests with a developer-friendly approach. Write scenarios in Scala or Kotlin, simulate thousands of users, get detailed analysis—performance testing that fits development workflows.
The DSL is expressive. The reports are thorough. The recorder captures browser sessions.
Development teams wanting load testing they can integrate into CI choose Gatling for developer-oriented performance testing.
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Gatling FAQ
Gatling's open source version is completely free for load testing. Enterprise plans are available for teams that need cloud execution and advanced reporting.
Gatling is a load testing tool that uses a Scala-based DSL to define test scenarios. It's designed for high performance and can simulate thousands of users hitting your application.
Gatling has a more modern architecture and better handles high loads. JMeter has a GUI and larger plugin ecosystem. Gatling is preferred for code-based, version-controlled test scenarios.