Locust vs Gatling: Which is Better in 2026?
Choosing between Locust and Gatling 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:
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
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
| At a Glance |  Locust |  Gatling |
|---|---|---|
Starts at | Usage-based/moLocust Cloud | Free tier + paid plansFree tier available |
Best For | Testing & QA | Testing & QA |
Rating | - | - |
Choose Locust or Gatling?
Choose Locust if
Load test with Python code, scale easily
- Python load testing
- Easy to write tests
- Good UI
Choose Gatling if
Load testing for web applications
- Good load testing tool
- Scala-based DSL
- Good reporting
| Feature | Locust | Gatling |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.3/5 10 reviews | ★4.4/5 65 reviews |
| Categories | Testing & QADeveloper Tools | Testing & QADeveloper Tools |
In-Depth Analysis
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
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
Pricing: Locust vs Gatling
| Plan | Locust | Gatling |
|---|---|---|
| Tier 1 | Free Locust (Open Source) | Free Open Source |
| Tier 2 | Usage-based Locust Cloud | Free Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Locust pricing and Gatling pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Locust
Want the highest-rated option?
Neither has user reviews yet.
Go with: Locust
Value user reviews?
Neither has user reviews yet.
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?
Neither has user reviews yet.
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 Locust or Gatling better?
Gatling is rated in our evaluation. Both are freemium.
What are Locust and Gatling used for?
Locust: Load test with Python code, scale easily. Gatling: Load testing for web applications.
What does Locust cost vs Gatling?
Locust is freemium (free tier + paid plans). Gatling is freemium (free tier + paid plans). Visit their websites for detailed pricing.