All testing tools

The open-source workhorse: every protocol, a GUI, and twenty-five years of plugins.

Developer-first browser testing with an interactive runner developers actually enjoy.

Developer-first load testing: JavaScript scripts, Go engine, CI-native thresholds.

A local AWS cloud emulator so you can test infrastructure without an AWS bill.

Microsoft's cross-browser automation library with tracing and auto-waiting built in.

The API platform most developers already have open: requests, collections, tests, mocks.

The de facto Python testing framework: fixtures, parametrisation, plugins.

Real databases and services in throwaway Docker containers, per test run.

The standard HTTP mock server for JVM and beyond: record, replay, stub, simulate faults.

YAML or JavaScript load tests that run serverless on AWS at large scale.

Managed cloud execution for JMeter, Gatling, k6 and Selenium scripts.

Git-native API client that stores collections as plain files in your repo.

Monitoring as code: your Playwright scripts, running against production on a schedule.

High-performance load testing with a code-first DSL and superb HTML reports.

Clean, fast API client with strong GraphQL and gRPC support.

API testing, mocks, performance and UI automation in one Gherkin-based DSL.

All-in-one low-code platform covering web, API, mobile and desktop.

Write load tests as plain Python. Scale by adding workers.

Spin up a realistic mock API from a desktop app in under a minute.

Consumer-driven contract testing so services can deploy independently.

Fluent Java DSL for testing REST services inside your existing JVM test suite.

Keyword-driven acceptance testing that reads like structured English.

The long-standing tool for SOAP, JMS and enterprise protocol testing.

In-process HTTP assertions for Node.js apps, without binding a port.

Model-based enterprise test automation for SAP, mainframe and packaged applications.

Design, mock, test and document APIs in one integrated workspace.

Lightweight browser-based API client you can self-host in a container.

Low-code, AI-assisted test automation with self-healing locators.

Design a realistic dataset in the browser and export it as CSV, JSON or SQL.

Turn an OpenAPI document into a mock server that validates as well as responds.

Property-based fuzzing that generates API tests straight from your OpenAPI schema.

Write tests in plain English, run them on web, mobile and APIs.

Lightweight service virtualisation: capture real traffic, then simulate it.

Visual flowchart automation designed for business users, not engineers.

Turn OpenAPI and AsyncAPI specs into executable contracts and smart mocks.

Open-source API testing configured entirely in YAML, built for pipelines.

Natural-language authoring with self-healing, aimed at enterprise QA teams.