Leading API development and testing platform that simplifies building, testing, documenting, and sharing APIs with collaborative workspaces and automation.

Swagger

4.5

api-designapi-documentationapi-testing

API design, documentation, and testing platform enabling teams to build quality APIs across the full lifecycle with OpenAPI and AsyncAPI support.

Katalon

4.4

test-automationai-testingqa-platform

Katalon is an AI-powered software quality platform that unifies testing workflows with agentic automation. It enables QA teams to manage test creation, execution, and reporting across web, mobile, API, and desktop applications.

Apache JMeter

4.2

load-testingperformance-testingopen-source

Apache JMeter is an open-source, 100% Java-based tool designed to load test and measure performance of web applications. It supports diverse testing scenarios including functional testing, API testing, and distributed load testing across multiple protocols.

ACCELQ

Unrated

test-automationqa-testingcodeless

AI codeless test automation platform for web, mobile, API, and desktop applications with business process focus.