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Best Load Testing Software in 2026

Load-testing tools let you apply planned demand to a service and examine its response. Compare tools by their supported platforms, deployment approach, licence and pricing. This category covers API, Linux, web, self-hosted, Windows and macOS platforms.

16 appsSorted 28 Oct 2026How we rank
17.4

LoadFocus is a cloud platform for load testing, website page-speed testing, API monitoring, and front-end UI testing.

Free planWebAPIExtension
Free plan
27.2
Artillery logo

Artillery combines load testing, scalable Playwright end-to-end testing, and production monitoring in one toolkit.

Free planWebAPILinux
From $199 a month
36.8
Gatling logo

Gatling is a load-testing and performance engineering platform for generating simulated traffic and locating performance bottlenecks.

WebAPILinux
From €1,068 a year
  1. 4

    Vegeta

    Vegeta is an open-source HTTP load testing tool that sends requests at a constant rate.

    Free planAPILinuxmacOSSelf-hosted
    6.7Free plan
  2. 5

    Loader.io

    Loader.io is a cloud-based service for stress testing web applications and APIs with concurrent connections.

    Free planWebAPI
    6.6From $99.95 a month
  3. 6BlazeMeter logo

    BlazeMeter

    BlazeMeter is an enterprise continuous testing platform for performance, functional, and API testing.

    WebAPIExtensionLinux
    6.5From $99 a year
  4. 7

    Fortio

    Fortio is a free, open-source HTTP and gRPC load-testing toolkit written in Go.

    Free planWebAPILinuxmacOS
    6.5Free plan
  5. 8

    Locust

    Locust is a free, open-source tool for performance and load testing HTTP services and other protocols.

    Free planWebAPILinuxmacOS
    6.5Free plan
  6. 9

    WebLOAD

    WebAPILinuxSelf-hosted
    6.5From $499 a month
  7. 10Apache JMeter logo

    Apache JMeter

    Apache JMeter is a free, open-source Java application for load testing functional behavior and measuring performance.

    Free planLinuxmacOSSelf-hostedWindows
    6.3Free plan
  8. 11

    k6

    Grafana Labs

    Free plan
    5.2Free plan
  9. 12

    Tricentis NeoLoad

    WebLinuxmacOSWindows
    5.2
  10. 13

    ApacheBench (ab)

    Apache Software Foundation

    Free plan
    5.1Free plan
  11. 14
    4.5
  12. 15

    Hey

    rakyll

    4.3
  13. 16

    wrk

    Wg (Gil Tene and contributors)

    4.3

Choosing well

Check platform support

Confirm that a tool fits the system where you plan to run it.

Compare free and paid plans

Several listed tools provide no-cost plans, including ApacheBench, Apache JMeter, Fortio, k6 and Locust. Artillery, BlazeMeter, Gatling, Loader.io and LoadFocus list freemium options.

Listed paid starting points range from $19 per month for LoadFocus to $199 per month for Artillery. LoadRunner Professional asks customers to request pricing.

Evaluate trial access

Trying a service first lets you assess it before committing to payment. Gatling advertises 14 days, while LoadFocus advertises 7 days.

Match the deployment style

Web, API and self-hosted choices fit different working arrangements. Check where scripts, controls and results are handled before selecting a tool.

Read the licence details

When code inspection or modification matters, review the licence terms. Fortio carries an open-source designation, and k6 includes an Open Source plan.

Questions people ask

Is Android support listed for these tools?

No Android platform is listed in the supplied facts. Check the product details before relying on Android access.

Can I begin with a free plan?

ApacheBench, Apache JMeter, Artillery, BlazeMeter, Fortio, Gatling, Hey, k6, Loader.io, LoadFocus and Locust are listed with free plans.

Which tools offer trial access?

A 14-day trial is listed for Gatling, and LoadFocus lists seven days.

Are self-hosted options available?

Self-hosted is one of the platforms listed for this category. Confirm the deployment method on the product page.

Which tool lists open-source access?

Fortio is identified as open source, while k6 lists an Open Source plan.

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