# API Testing Tools SaaS

> 931 API Testing Tools SaaS products listed on SaaS Browser, 93 added in the last 30 days. Figures as of 2026-11-04.

Web page: https://saasbrowser.com/en/category/api-testing-tools
All categories: https://saasbrowser.com/en/categories.md

## Key figures

- SaaS products: 931
- Added in the last 30 days: 93
- Median domain rating (0-100): 22.5
- Median domain rating across all SaaS: 14.0
- Median company age: 6.0 years
- Running an affiliate program: 1.7%
- Median affiliate commission: 0.0%
- Customers: B2B and B2C 19.4%, B2B 80.2%, B2C 0.4%
- Top countries: United States (101), India (31), United Kingdom (25), Germany (14), Australia (7)

## Most established

- BrowserStack
- Bazel
- Deque
- Centercode
- Cypress
- Sauce Labs
- Accessibility Insights
- SmartBear
- Cucumber
- Mock Service Worker

## Recently added

- Leaptr
- SiteFix
- QA Studio
- UAT Pocket
- CriteriaPilot
- FlowCanary
- axe-core
- PinePoint
- MockFox
- Browsova

## Products (page 1 of 10)

- [SmartBear](https://saasbrowser.com/en/saas/70699/smartbear): SmartBear offers a comprehensive suite of software testing, monitoring, and developer tools designed to enhance the quality and performance of applications. With integrated solutions for API management, automated testing, and real user monitoring, teams can streamline their workflows and deliver exceptional user experiences.
- [Pact](https://saasbrowser.com/en/saas/55834/pact): A robust solution streamlines the process of contract testing for microservices, APIs, and web applications, enabling teams to deploy independently and safely without the complexities of traditional end-to-end testing environments. Key features include automated integration testing, API stubs for reliable testing, seamless CI/CD pipeline integration, and enhanced insights into integration issues, making it ideal for developers and engineering teams seeking to improve release processes and reduce reliance on fragile test data.
- [Mock Service Worker](https://saasbrowser.com/en/saas/22555/mock-service-worker): Mock Service Worker is an industry-standard API mocking library designed for both browser and Node.js environments, enabling developers to create client-agnostic mocks that can be reused across various frameworks and tools. It simplifies the testing process by allowing users to focus on network behavior without the need for complex configurations, ensuring a seamless integration into any development workflow.
- [Cucumber](https://saasbrowser.com/en/saas/54569/cucumber): This framework enables automated acceptance testing by expressing executable requirements in plain language through structured steps (Given-When-Then), with features such as reusable step definitions, data tables, scenario outlines, and living documentation that can be understood by both business and technical stakeholders across multiple platforms. It solves problems of communication gaps, ambiguous acceptance criteria, and fragile manual tests by aligning developers, testers, product owners, and analysts around concrete examples, supporting behavior-driven development, CI/CD integration, multi-language support, and cross-team collaboration.
- [Proxyman](https://saasbrowser.com/en/saas/247006/proxyman): This advanced network debugging tool captures and analyzes HTTP and HTTPS traffic, enabling developers to inspect requests and responses in real-time with ease. Key features include SSL proxying, multiple filtering options, GraphQL debugging, and a scripting tool for request manipulation, making it an essential resource for developers seeking to troubleshoot and optimize their applications efficiently.
- [Taplid](https://saasbrowser.com/en/saas/1592262/taplid): This system functions as an AI-powered validation and auditing platform designed to ensure the accuracy, safety, and compliance of generated technical outputs, code, and documents. It offers features such as structured output analysis, real-time validation, automated review of code changes, legal drafts, technical reports, and JSON artifacts, along with support for integration via web, APIs, SDKs, and CLI tools; it helps developers, product teams, and compliance officers identify hallucinations, inconsistencies, unsafe patterns, and compliance issues, thereby streamlining quality control, reducing errors, and enhancing trustworthiness of automated AI outputs.
- [Hector](https://saasbrowser.com/en/saas/1559037/hector): The platform provides a comprehensive hardware testing environment that enables developers to define, simulate, and validate embedded firmware and hardware configurations using YAML descriptions, running tests locally or within continuous integration pipelines. Its main features include an open-source command-line interface, a user-friendly dashboard with real-time topology visualization, scalable build and test runner pools, detailed audit logs, matrix job execution, support for hardware co-simulation with Verilator, and seamless integration with version control systems; it addresses challenges related to hardware-in-the-loop testing, automation, and collaboration in embedded development teams. This solution is tailored for embedded developers, hardware engineers, QA teams, and organizations seeking secure, scalable, and automated hardware validation within their existing infrastructure and workflows.
- [ChargerDojo](https://saasbrowser.com/en/saas/1637267/chargerdojo): This OCPI testing tool is designed to simulate and validate roaming interactions in electric vehicle charging networks, ensuring compliance with various OCPI protocol versions and identifying potential issues before live deployment. Its main features include executing comprehensive charging journey simulations, testing for protocol adherence, simulating adverse conditions like meter errors or billing discrepancies, and providing detailed, graded reports on conformance, partner compatibility, and acceptance rules. It addresses the problems of uncovering roaming bugs, mismatched data exchanges, and billing inaccuracies, making it ideal for charging network operators, platform integrators, and developers seeking reliable, error-free roaming integrations and improved interoperability across multiple charging networks.
- [Simceptor](https://saasbrowser.com/en/saas/1536755/simceptor): Simceptor is a no-code platform designed to quickly create customizable mock API servers that emulate RESTful endpoints with advanced features such as conditional response rules, dynamic data generation, and latency simulation, enabling developers to test and develop applications without backend implementation. It offers intuitive, user-friendly tools for setting up CRUD routes, dynamic routing with path variables, and injecting custom headers, making it suitable for testers, frontend developers, and API designers seeking efficient, code-free testing environments; it addresses challenges such as lengthy backend setup, hard-to-maintain hardcoded data, and the need for realistic network conditions.
- [Rowcall](https://saasbrowser.com/en/saas/1574399/rowcall): This manual test tracking tool is designed to streamline product testing workflows by organizing individual tests as distinct rows, each representing a unique user action within specific features, thereby enhancing clarity and coverage visibility. It offers features such as shared reusable lists for users, actions, and features; notes and task checklists for detailed test setup; undo capabilities for all modifications; and an offline-first approach that stores work locally while allowing cloud synchronization, making it ideal for testers, quality assurance teams, and product managers seeking an efficient, flexible, and cost-effective alternative to traditional spreadsheet or enterprise test management solutions.
- [QA Genie Studio](https://saasbrowser.com/en/saas/1574627/qa-genie-studio): A comprehensive testing tool designed to automatically generate structured, actionable test cases based on natural language descriptions, addressing the need for organized and efficient quality assurance processes. Its main features include AI-powered test case creation, offline fallback support, versatile export options (Excel, CSV, JSON, PDF), smart management of test suites, risk-based sorting prioritizing critical and security-related scenarios, batch operations for streamlined workflow, and a user-friendly interface suitable for developers and QA teams seeking rapid, precise, and customizable test generation to improve bug detection and ensure software reliability.
- [API Test Lab](https://saasbrowser.com/en/saas/1478180/api-test-lab): This platform provides an integrated environment for comprehensive API testing, load simulation, and traffic analysis, enabling developers and engineers to validate, monitor, and optimize application programming interfaces efficiently. Its main features include advanced request builders with authentication and headers, real-time load testing with concurrent runs, traffic monitoring dashboards, team collaboration tools, and server-side analysis without external AI dependencies, solving problems related to API performance bottlenecks, reliability, and security for software development teams of all sizes.
- [ResponseRift](https://saasbrowser.com/en/saas/1612255/responserift): This tool provides a comprehensive platform for creating and testing mock REST APIs to streamline frontend development and prototyping by generating realistic and predictable JSON responses, including features like filters, pagination, nested routes, and CRUD operations. It addresses the challenges of frontend-backend integration delays, enabling developers and designers to simulate backend interactions, validate UI states, and refine components efficiently before the actual backend is available, making it ideal for frontend engineers, UI/UX designers, product managers, and QA testers working on digital interfaces and applications.
- [JMeterHub](https://saasbrowser.com/en/saas/1621745/jmeterhub): This tool transforms raw JMeter test results into comprehensive, easily shareable reports by generating detailed tables, visually appealing graphs, and clear comparisons that are compatible with platforms like Confluence and Word. It offers features such as aggregated performance metrics, error analysis, response time visualization, baseline versus new test comparison, customizable SLA thresholds, and AI-driven explanations to identify bottlenecks and performance issues, making it particularly valuable for performance engineers, QA teams, and DevOps professionals aiming to analyze and communicate test outcomes effectively.
- [PayloadPigeon](https://saasbrowser.com/en/saas/1693028/payloadpigeon): This tool captures and records real HTTP and WebSocket traffic from web applications, enabling developers to create reusable, customizable tests for API endpoints and communication channels without altering the application code. It offers features such as traffic interception, response modification, test case saving, and flexible request editing, solving problems related to API testing, debugging, error simulation, and performance validation for frontend and backend developers, QA teams, and DevOps professionals.
- [Checksum](https://saasbrowser.com/en/saas/306257/checksum): Checksum offers automated end-to-end testing for applications, using AI to generate and maintain tests based on real user sessions. This service allows developers to focus on building features while ensuring fast, bug-free code delivery with minimal effort.
- [DevTools](https://saasbrowser.com/en/saas/1606891/devtools): This open-source tool facilitates automated API testing by capturing real browser traffic, generating multi-step YAML test workflows, and executing them seamlessly within Continuous Integration (CI) pipelines, thereby streamlining development workflows and improving testing efficiency. Its main features include recording browser session data through HAR files, auto-mapping variables and tokens for request chaining, visually designing complex test flows, and exporting standardized YAML scripts suitable for code review and CI/CD automation, solving problems related to manual test creation, flaky tests, and inconsistent environments. It is designed for software developers, QA engineers, and DevOps teams seeking reliable, scalable, and easy-to-integrate API testing solutions that enhance test automation, improve test accuracy, and accelerate deployment cycles.
- [TestDevTools](https://saasbrowser.com/en/saas/71166/testdevtools): This is a curated collection of testing and development tools designed to empower QA professionals, developers, testers, and designers to accelerate software verification by aggregating automation, debugging, accessibility, performance, API testing, and UI tooling from across the internet. Its features include a visual change reviewer that filters noise and highlights meaningful UI diffs, customizable review rules, build metrics tracking, offline and online utilities for server-side rendering checks, request mocking, screen capture and sharing, and JSON validation, addressing issues such as noisy visual tests, flaky feedback cycles, fragmented tooling, and maintenance burdens while enabling faster, more reliable testing in CI/CD pipelines.
- [UI-licious](https://saasbrowser.com/en/saas/44731/uilicious): UIlicious offers a low-code platform designed for automating and scheduling cross-browser testing at scale, enabling users to focus on testing user journeys rather than HTML. With features like AI test authoring, interactive reporting, and smart element targeting, it simplifies the testing process while ensuring robust performance across various web applications.
- [Accessibility Checker](https://saasbrowser.com/en/saas/920320/accessibility-checker): This website offers a free accessibility testing tool that helps users ensure their online content meets WCAG standards. It allows content creators to quickly identify and fix accessibility issues, making their websites usable for everyone, including people with disabilities.

Next page: https://saasbrowser.com/en/category/api-testing-tools.md?page=2

Affiliate programs in this category: https://saasbrowser.com/en/affiliate-programs/api-testing-tools
Bug bounty programs in this category: https://saasbrowser.com/en/bug-bounty-programs/api-testing-tools
Full data is available through the API (https://saasbrowser.com/en/resources/api) and the MCP server (https://saasbrowser.com/en/resources/mcp).