# gatling/gatling

Modern Load Testing as Code

Repository: https://github.com/gatling/gatling
Canonical: https://ross.abutalabs.com/products/gatling
Homepage: https://gatling.io
Language: Scala
License: Apache-2.0
License Family: permissive
Topics: netty, scala, loadtesting, automation, gatling, load-testing, java, cicd, javascript, kotlin, load-test, load-tests, loadtest, loadtests, performance-test, performance-test-gatling, performance-testing, performance-tests, typescript
Last push: 2026-08-25T11:51:30+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 5573, "days_push": 8, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6953, forks 1205 (observed 2026-08-28T04:09:51.719166+00:00)

## What it is
Gatling is an open-source, code-first load testing tool and performance engineering platform. It uses a fully asynchronous, non-blocking architecture to simulate thousands of concurrent virtual users, with tests defined as code in Java, Scala, Kotlin, JavaScript, or TypeScript.

## Use cases
- load test an HTTP API with thousands of concurrent users
- run performance tests as code in CI/CD pipelines
- detect performance regressions before releases
- simulate WebSocket, gRPC, JMS, or MQTT traffic under load
- generate load without maintaining large injection server farms
- version performance tests alongside application code
- validate SLOs and performance objectives automatically

## When to choose
- you want expressive test-as-code SDKs instead of GUI or XML-based tools
- you need high load generation efficiency from a single node via non-blocking IO
- you want load tests integrated into version control and CI/CD
- you need protocol support beyond HTTP, such as WebSocket, gRPC, JMS, or MQTT

## When to avoid
- you need real-time dashboards, distributed load injection, or historical trend analysis without paying for the Enterprise Edition
- your team prefers no-code GUI-based test creation
- you need a simple one-off benchmark rather than a full performance testing workflow

## Facets
- artifact type: cli-tool
- maturity: stable
- function: load-testing, benchmarking, testing, ci-cd, http-client
- domain: performance, testing, developer-tools, apis
- platform: jvm, cli, cross-platform
- tags: load-testing-as-code, performance-engineering, websocket, grpc, mqtt, jms, virtual-users, slo-monitoring, devops, nodejs

## Member repositories
- gatling/gatling (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:51.719166+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:41:12.256124+00:00, confidence not recorded.
  - readme: https://github.com/gatling/gatling (fetched 2026-08-28T04:09:51.719166+00:00, sha b07a462a9f4f)
  - homepage: https://gatling.io (fetched 2026-08-29T08:37:05.333887+00:00, sha a2b6f4480041)
  - site_page: https://docs.gatling.io/ (fetched 2026-08-29T08:37:05.348871+00:00, sha 9ba27d15e9d4)
  - site_page: https://gatling.io/about (fetched 2026-08-29T08:37:05.352131+00:00, sha 5052ac4f9d42)
  - site_page: https://gatling.io/updates (fetched 2026-08-29T08:37:05.343261+00:00, sha 183328dae1f0)
  - site_page: https://gatling.io/integrations (fetched 2026-08-29T08:37:05.345366+00:00, sha 560ed0b9675e)
  - site_page: https://gatling.io/community-vs-enterprise (fetched 2026-08-29T08:37:05.347030+00:00, sha bfd0ea1b1c90)
  - site_page: https://gatling.io/faq (fetched 2026-08-29T08:37:05.350482+00:00, sha 4be19ef1510b)
  - site_page: https://gatling.io/pricing (fetched 2026-08-29T08:37:05.353888+00:00, sha 340f3331262a)
- Data as of 2026-08-30T08:39:29.467469+00:00.