Gatling vs Locust: Which is Better in 2026?
Choosing between Gatling and Locust comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Gatling
Load testing for web applications
Best for you if:
- • 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
Locust
Load test with Python code, scale easily
Best for you if:
- • Locust is an open-source load testing tool written in Python
- • It simulates millions of users with code-based test scenarios
| At a Glance |  Gatling |  Locust |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Testing & QA | Testing & QA |
Rating | 4.4/5 | 4.3/5 |
Free plan | Yes | Yes |
Choose Gatling or Locust?
Choose Gatling if
Load testing for web applications
- Good load testing tool
- Scala-based DSL
- Good reporting
Choose Locust if
Load test with Python code, scale easily
- Python load testing
- Easy to write tests
- Good UI
| Feature | Gatling | Locust |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.4/5 65 reviews | ★4.3/5 10 reviews |
| Categories | Testing & QADeveloper Tools | Testing & QADeveloper Tools |
In-Depth Analysis
Gatling
Load testing for web applications
Strengths
- +Good load testing tool
- +Scala-based DSL
- +Good reporting
- +Open source
- +Active community
Weaknesses
- -Learning curve
- -Scala knowledge needed
- -Enterprise features paid
- -Setup complexity
- -Resource intensive
Key features
Locust
Load test with Python code, scale easily
Strengths
- +Python load testing
- +Easy to write tests
- +Good UI
- +Open source
- +Distributed testing
Weaknesses
- -Python knowledge needed
- -Resource intensive
- -Limited protocol support
- -Reporting basic
- -Alternatives exist
Key features
Pricing: Gatling vs Locust
| Plan | Gatling | Locust |
|---|---|---|
| Tier 1 | Free Open Source | Free Locust (Open Source) |
| Tier 2 | Free Enterprise | Usage-based Locust Cloud |
Pricing verified from each vendor's public pricing page. Compare in detail on Gatling pricing and Locust pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Gatling
Want the highest-rated option?
Gatling: 4.4/5 (65 reviews). Locust: 4.3/5 (10 reviews).
Go with: Gatling
Value user reviews?
Gatling: 65 reviews (4.4/5). Locust: 10 reviews (4.3/5).
Go with: Gatling
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are testing & qa tools. Compare their specific features to decide.
How important are ratings?
Gatling is rated higher: 4.4/5 vs 4.3/5.
Key Takeaways
Gatling
- Higher user rating: 4.4/5 vs 4.3/5
- Larger review base (65 reviews)
- Free tier available
- Our pick for this comparison
Locust
- Choose if you want load test with Python code, scale easily
The Bottom Line
Gatling is our pick.
Frequently Asked Questions
Is Gatling or Locust better?
Gatling is rated in our evaluation. Both are freemium.
What are Gatling and Locust used for?
Gatling: Load testing for web applications. Locust: Load test with Python code, scale easily.
What does Gatling cost vs Locust?
Gatling is freemium (free tier + paid plans). Locust is freemium (free tier + paid plans). Visit their websites for detailed pricing.