STATIC COMPARISON / TIER B
Gatling vs Azure Load Testing
Answer Gatling is an open source, self-hosted load testing tool from Gatling Corp., scripted in Java, Scala, Kotlin. Azure Load Testing is a commercial, vendor-hosted cloud load testing service from Microsoft, scripted in Java, Groovy. The practical split is the cost model: Gatling is open source, Azure Load Testing is commercial.
Curator verdict
Both cover HTTP, HTTPS, JMS. On recorded coverage Gatling is the wider of the two (5 protocols against 4), which matters only if your workload actually uses the extra ones. Budget and procurement usually settle Gatling against Azure Load Testing before any benchmark does. Run the same scenario on both before you standardize; the rows below only tell you what is true on paper.
Spec matrix
| Field | Gatling | Azure Load Testing |
|---|---|---|
| Vendor | Gatling Corp. | Microsoft |
| Category | Load Testing | Cloud Load Testing |
| License | Open Source | Commercial |
| Deployment | Self-hosted | Cloud |
| Status | Active | Active |
| First released | 2012 | 2021 |
| Pricing | Free open-source core; commercial platform available. | Azure consumption-based pricing with free quota. |
| Scripting | Java, Scala, Kotlin | Java, Groovy |
| Protocols | HTTP, HTTPS, WebSocket, SSE, JMS | HTTP, HTTPS, JDBC, JMS |
| OS support | Windows, macOS, Linux | Browser |
How to choose
- Choose Gatling if you need a free, self-supported stack (Free open-source core; commercial platform available).
- Choose Azure Load Testing if you can fund a commercial license for vendor support (Azure consumption-based pricing with free quota).
- Pick Azure Load Testing to avoid operating injectors, Gatling when residency or air-gapped runs rule a hosted service out.
- Only Gatling records support for WebSocket, SSE — one hard requirement there decides the pair on its own.
- Only Azure Load Testing records support for JDBC — one hard requirement there decides the pair on its own.
- Match the authoring language to the team: Gatling means Java, Scala, Kotlin, Azure Load Testing means Java, Groovy.
- Open the Test Rig to compare license, deployment, protocol and OS rows side by side.
Need more than two tools or a shareable matrix? Use the live Test Rig from the directory compare tray.
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