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CheckOps
Tools Directory
Tools, tech and trends for continuous quality, for humans and agents.
Curated collection of top software testing tools. Search, filter, compare two to four, and refresh public signals.
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Showing 283 tools
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SSoapUI
SoapUI is a free and open source cross-platform functional testing solution for APIs and web services.
HHoppscotch
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia.
T Tuskr
Flexible test management with features for planning, executing, and analyzing test cases.
TTestRail
TestRail is AI-driven test management software for planning, executing, and reporting on testing.
A AccelQ
AccelQ is a premium testing tool offering comprehensive automated, performance, and security testing features, seamlessly integrating for Web,API and Mobile with CI/CD pipelines
BBruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia).
PPerfecto
A cloud-based test automation platform for mobile and web applications, providing real device testing.
B Beeceptor
Create AI-powered mock servers in seconds.
IInsomnia
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC.
RReadyAPI
The number one platform for Agile and DevOps teams, ReadyAPI powers functional, security, performance, and virtualization of SOAP & REST APIs.
TThunderclient
A Lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.
SSwaggerUI
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
KKarate
Test Automation Made Simple.
KKatalon Studio
Start API testing from today with Katalon.
DDredd
Language-agnostic HTTP API Testing Tool.
CCitrus
Framework for automated integration tests with focus on message-based applications.
HHTTPie
🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era.
AAPI Fortress
A comprehensive and user-friendly tool for API testing, offering extensive features like a visual test composer, end-to-end testing, and strong CI/CD integration.
AAssertible
Continuously test your web services.
PPaw (RapidAPI)
RapidAPI for Mac is a full-featured and beautifully designed Mac app that makes interaction with REST services delightful.Whether you are an API maker or consumer, RapidAPI…
SSelenium
A browser automation framework and ecosystem.
PPlaywright
Playwright is a framework for Web Testing and Automation.
CCypress
Fast, easy and reliable testing for anything that runs in a browser.
NNightWatchJS
Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API.
C Capybara
Acceptance test framework for web applications.
PProtractor
E2E test framework for Angular apps.
TTestCafe
A Node.js tool to automate end-to-end web testing.
WWebDriverIO
Next-gen browser and mobile automation test framework for Node.js.
PPuppeteer
JavaScript API for Chrome and Firefox.
W Watir
An open source Ruby library for automating tests.
SSelenium IDE
Open Source record and playback test automation for the web.
P PyRestTest
YAML based api testing and API microbenchmarking tool in Python
AAppium
Cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriver protocol.
D Detox
Gray box end-to-end testing and automation framework for mobile apps.
TTestComplete Mobile
Create and run automated UI tests on any mobile application using our automated mobile testing tool, TestComplete.
RRanorex Studio
Test automation for desktop, web, and mobile apps.
RRobot Framework
Generic automation framework for acceptance testing and RPA.
XXCUITest
A test automation framework for iOS applications, part of the XCTest framework.
EEspresso
Espresso is an Android testing framework for writing concise, beautiful, and reliable UI tests that synchronize automatically with the application's UI.
UUFTOne
UFT One is a functional testing tool that supports scriptless test creation for web, mobile, API, and desktop applications.
CCalabash
An open-source automated testing librasry in Ruby for Android and iOS native and hybrid applications.
S Selendroid
"Selenium for Android" (Test automate native or hybrid Android apps and the mobile web with Selendroid.) Join us on IRC #selendroid on freenode.
WWireMock
A tool for mocking HTTP services.
KK6
k6 is an open-source tool and cloud service that makes load testing easy for developers and QA engineers.
AArtillery
The complete load testing platform.
LLoadRunner
A performance testing tool by Micro Focus, which provides a comprehensive solution for testing the performance of a wide range of applications.
PPactFlow
Fast, easy, and reliable testing for your APIs and microservices at scale.
GGatling
Modern Load Testing as Code.
PPact
Fast, easy and reliable testing for integrating web apps, APIs and microservices.
TTosca API Test
Tosca’s API Scan allows teams to easily create, manage, and execute automated API tests with a simple, no-code solution that literally anyone can use and adopt
AApiary
Apiary provides the leading API-First platform designed specifically to help companies accelerate and control the design, development, and documentation of APIs.
KKeploy
Keploy is developer-centric API testing tool that creates tests along with built-in-mocks, faster than unit tests.
RRestQA
🦏 | Best in class Microservice automation testing.
D DeepFake HTTP
DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses. This tool allows you to test clients against REST, GraphQL, and other APIs.
RRunScope
API performance monitoring.
SSuperTest
Developer-friendly tool for testing Node.js HTTP servers and APIs
TTestComplete
TestComplete offers a range of powerful features to help you scale your automated ui testing efforts and maximize test coverage.
AAirbone
Airborne is an API automation testing tool built on the Ruby RSpec framework
FFiddler
Explore Fiddler's web debugging tools and proxy solutions to debug, mock, capture, and modify web and network traffic.
RRestSharp
Simple REST and HTTP API Client for .NET.
BBlazeMeter
Unify performance testing, API testing and monitoring, service virtualization, AI-powered test data, and functional testing in one platform.
JJMeter
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services.
NNeoLoad
Neoload is a performance testing platform that simulates high user loads to identify and fix performance bottlenecks.
AApica
Apica is the agentic-ready telemetry pipeline that cuts observability costs up to 40%.
LLoadNinja
The only load testing tool to record, replay, and test in real browsers at scale.
L Locust
Write scalable load tests in plain Python 🚗💨.
WWebLOAD
Learn more about WebLOAD load testing tool by RadView.
LLoadium
Loadium is a performance and load testing tool that executes performance tests from open source tools, including JMeter, Gatling, and Selenium
L LoadView
A cloud-based load testing tool that allows you to create and execute performance tests for your web applications and APIs.
RRedLine13
RedLine13 gives you "almost" free load testing in the cloud.
LLoader.io
Free tool for web application load testing that allows for the simulation of concurrent connections to your web application's APIs.
T Taurus
Automation-friendly framework for Continuous Testing by.
AApache Benchmark
A command-line tool for measuring the performance of HTTP web servers, useful for testing the performance of your Apache installations.
S Siege
Siege is an http load tester and benchmarking utility.
V Vegeta
HTTP load testing tool and library.
T Tsung
A multi-protocol distributed load testing tool that can be used to stress test HTTP, WebDAV, SOAP, PostgreSQL, MySQL, and more.
O OWASP ZAP
The ZAP by Checkmarx Core project.
QQualys
Discover how Qualys helps your business measure & eliminate cyber threats through a host of cybersecurity detection & remediation tools.
BBurp Suite
PortSwigger offers tools for web application security, testing, & scanning.
RRoboHydra HTTP
RoboHydra Server is a great API testing solution for those who don’t have access to a server but need to test something.
NNessus
Find out more about Nessus - the trusted gold standard for vulnerability assessment, designed for modern attack surfaces - used by thousands of organizations.
A AppSpider
A dynamic application security testing tool with API security features.
LLeapwork
Unite Enterprise Playwright, AI test automation, and performance testing with the governance enterprises need to trust software delivery.
MMicro Focus Fortify
A suite of tools for application security, including API security testing.
HHttpMaster
Practical and easy-to-use software tool for testing HTTP applications and services.
KKatalon Studio TrueTest
Katalon True Platform is the AI testing platform for QA teams.
TTricentis Tosca
A continuous testing platform that supports scriptless test automation for web, mobile, API, and enterprise applications.
PParasoft SOAtest
Optimize API and web service testing with AI-enhanced SOAtest.
RRanorex Studio
Test automation for desktop, web, and mobile apps.
EEggplant Functional
A test automation tool that provides scriptless testing solutions for web, mobile, and desktop applications.
TTestComplete
Test Mobile, Web and Desktop applications.
AApplitools
Applitools is an AI-powered end-to-end testing platform that combines our proven Visual AI with the latest GenAI and no-code approaches to maximize your test coverage while…
SScriptless
A test automation platform that provides scriptless test creation for web applications.
UUFT One
A functional testing tool that supports scriptless test creation for web, mobile, API, and desktop applications.
ZZebrunner
Synchronize manual and test automation teams in one place.
AAutify
Autify's AI-powered Quality Engineering Platform provides AI-powered product and quality assurance professionals to streamline your software testing process and boost the…
TTestim
Testim is an automated testing platform for fast authoring of AI-powered stable tests and tools to help you scale quality.
FFunctionize
Builds, runs, and maintains tests against your live application.
MMabl
The #1 agentic testing platform empowering software teams to accelerate releases, ensure software quality, and deliver exceptional user experiences.
GGhost Inspector
Ghost Inspector is a no-code automated browser testing platform.
P ProdPerfect
Everyone plans to succeed.
TTestsigma
Agentic test automation that generates, runs, heals, and diagnoses tests then scores your release confidence.
TTestArchitect
Empower your team with TestArchitect: unified, no-code, AI-powered automation, API, and database testing.
ZZeuz
ZeuZ Test Studio is an AI test automation platform that writes, runs and repairs tests across web, mobile, desktop and API.
AAcunetix
Invicti Web + API is an end-to-end web security scanner that offers a 360 view of an organization’s security.
PParasoft SOAtest
Optimize API and web service testing with AI-enhanced SOAtest.
ZZato API Test
With Zato API Test, you can test APIs in plain English, without any programming
U Unirest
Unirest in Java: Simplified, lightweight HTTP client library.
CCurl
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS,…
TTelerek TestStudio
API testing with Test Studio helps you enhance your end-to-end testing strategy to cover test scenarios that require API calls.
RRest-Assured
Java DSL for easy testing of REST services.
B BrowserStack
Instant access to 3500+ browsers and real iOS and Android devices for cross browser testing.
SSauce Labs
Test web and mobile apps on thousands of real devices, browsers, and emulators.
LLambdaTest
Cross-browser testing platform with a scalable cloud infrastructure supporting CI/CD tools.
AAWS Device Farm
AWS Device Farm is an application testing service that allows you to test iOS, Android, and web applications on real smartphones, tablets and desktop web browsers.
ZZephyr
Whether you’re Agile or Waterfall, or somewhere in-between, Zephyr test management solutions support development natively on Jira as well as securely on-premises.
TTestLodge
Simple test case management tool for creating and running test cases with reporting.
HHyperTest
HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.
XXray
Bring QA and development together in Jira.
UUsetrace
Codeless testing platform for automating web application testing.
CCloudQA
Record, run and maintain end-to-end web tests without writing code.
RRainforest QA
Automate e2e tests without the time-consuming drudgery of test maintenance.
VVirtuoso
Virtuoso QA is an enterprise test automation platform that proves what it tested.
AAvo Assure
Avo Automation helps enterprises assure business-critical processes with Avo Assure - agentic AI, no-code test automation for SAP, Dynamics 365, Oracle, and Salesforce.
OOpkey
Codeless test automation for ERP applications with support for no-code workflows.
KKobiton
Codeless mobile app testing with real device cloud and AI-driven capabilities.
RReflect
SmartBear Reflect helps teams maintain application integrity with AI-powered, codeless web and mobile testing, so your app works the way it.
WWaldo
Codeless mobile app testing with AI-powered visual testing and reporting.
DDoesQA
Automated end-to-end testing for every web journey.
OOxygen
Oxygen is a powerful Selenium & Appium infrastructure for beginners and pros.
RReTest
retest makes GUI test automation software.
EEndTest
Endtest is the agentic AI platform for end-to-end test automation.
TTestRigor
Test automation tool - testRigor.
UUIlicious
Automate UI tests with UI-licious.
DDogQ
No-code test automation tool for end-to-end web tests.
PPreflight
PreFlight is a No-code web testing tool for anyone.
C ClicAutomate
ClicAutomate is built on a script-less test automation approach which expedites automation testing
TTestingWhiz
Experience effective test automation of web & mobile apps with an easy & intuitive codeless end-to-end software testing tool, TestingWhiz.
BBugBug
Cut regression time without growing your QA team.
B BrowserStack Low Code
Create AI-powered automated tests in minutes with our Low Code Automation.
PPingdom
A performance monitoring tool that provides insights into your website's speed, uptime, and user interactions.
BBitBar
Whether web, native, or hybrid, securely test your app across the real environments you need.
HHeadSpin
HeadSpin enables real device testing with AI-driven insights, KPI analysis, and seamless automation across 50+ locations for optimized app performance.
VVisual Studio App Center
Part of Visual Studio App Center for mobile app testing on various real devices in the cloud.
TTestGrid
TestGrid is an end-to-end testing solution powered by AI that simplifies and streamlines the testing process, helping businesses deliver high-quality digital experiences faster.
PPcloudy
Pcloudy is an AI-powered mobile app testing platform with 5,000+ real devices.
EEMAS by Alibaba Cloud
EMAS Mobile Testing is a cloud platform that provides device testing services for enterprises and mobile developers.
T TestLink
Open-source test case management with test execution tracking and reporting capabilities.
PPractiTest
PractiTest is an AI-powered Test Management and QA Intelligence Platform that turns QA data into business answers.
K Kualitee
Test case management tool from $12/user with AI test generation, defect tracking, and Jira integration built in.
QQMetry
Accelerate releases with AI-powered test management.
AAqua
Transform QA with aqua cloud's AI-driven test management platform.
TTestiny
AI-ready test management tool for teams who want manual and automated testing in one system, their preferred AI assistant, and EU cloud or self-hosting.
Q Qase
Cloud-based test case management with test planning, execution, and defect tracking.
SSpiraTest
Manage your project's requirements, test cases and bugs.
TTestpad
Checklists-inspired test management for manual and exploratory testing, Agile-friendly.
RReQtest
Med Reqtest är det enkelt att lyckas med IT-projektet.
TTestMonitor
TestMonitor is a simple, intuitive test management software platform built for enterprise software, quality app development, and other important testing needs.
AApplause
Applause is a managed software testing services provider enabling enterprises to deliver high-quality apps, websites and AI experiences worldwide.
TTricentis qTest
Supports Agile and DevOps workflows, allowing centralized management of test cases.
BBugzilla Testopia
Extension for Bugzilla to provide basic test case management features.
IIBM Rational Quality Manager
Test case management solution with collaborative features for Agile teams.
SSmartBear Test Management
Tool that includes test planning, test case management, and reporting tools.
HHelix TCM
Allows creating and organizing test cases, linking them to requirements for traceability.
JJama Connect
Accelerate complex product development with an AI-powered engineering and requirements management platform that improves collaboration, traceability, quality, and compliance.
TTestmo
Modern test management software tool that fully integrates your test cases, test automation and exploratory testing, regardless of the tools you use.
CCucumberStudio
CucumberStudio gives your team the platform to succeed with BDD.
TTest Collab
Web-based test management tool with real-time reporting, JIRA integration, and REST API support.
K Klaros-Testmanagement
Test case management tool supporting Agile methods with reporting and CI/CD integration.
EEasyQA
Cloud-based test management tool for organizing test cases, running tests, and tracking bugs.
TTyk
Open Source API and AI Gateway supporting REST, GraphQL, TCP, gRPC and MCP (Model Context Protocol).
VvRest
An effective online tool for automated REST API Testing.
AAPITest
A simple and extensible behavioural testing library for Go.
FFrisby
Frisby is a REST API testing framework built on Jest that makes testing API endpoints easy, fast, and fun.
R RestCase
RestCase supercharges the API development process resulting in improved team collaboration, reduced development time, better testing and increased overall productivity.
NNock
HTTP server mocking and expectations library for Node.js.
MMicrocks
Microcks is Open Source cloud-native tool for API Mocking and Testing.
TTestMace
Your IDE for working with an API.
AApickli
Test framework for behavior-driven API testing.
TTrafficParot
Mock API server and message broker for TDD and API Testing
IImposter
Scriptable, multipurpose mock server.
SStoplight Prism
Accelerate API development with realistic mock servers powered by API descriptions.
MMirageJS
A client-side server to build, test and share your JavaScript app.
HHoverfly
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers.
Q QuickMocker
API mocking and request inspection tool for development and testing.
JJSON Server
Quickly mock a REST API with JSON files.
MMockLab
Platform for creating, testing, and sharing HTTP mock servers.
MMockoon
Mockoon is the easiest and quickest way to run mock APIs locally.
MMockServer
Open-source HTTP/1.1, HTTP/2, HTTP/3, HTTPS and gRPC mock server, recording proxy, and MCP server for AI assistants.
MMockAPI
MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and perform operations on it using RESTful interface.
MMetasploit
Find security issues, verify vulnerability mitigations & manage security assessments with Metasploit.
NNikto
Nikto web server scanner.
KKaneAI
KaneAI is TestMu AI's AI testing agent that turns natural-language instructions into end-to-end web and mobile tests, with auto-heal, code generation and cloud execution.
SSQLMap
Automatic SQL injection and database takeover tool.
WWfuzz
Wfuzz has been created to facilitate the task in web applications assessments and it is based on a simple concept: it replaces any reference to the FUZZ keyword by the value…
N Nmap
Nmap - the Network Mapper.
O OpenVAS
Framework for vulnerability scanning and management.
AAstra
Astra Security is a one of a kind AI powered automated Pentest Platform that makes chaotic pentests a breeze & continuous with its hacker-style vulnerability scanner.
KKali Linux
Home of Kali Linux, an Advanced Penetration Testing Linux distribution used for Penetration Testing, Ethical Hacking and network security assessments.
W Wapiti
Wapiti is a free and open-source web application vulnerability scanner (DAST).
A Aircrack-ng
WiFi security auditing tools suite.
VVeracode
Manage application security risks effectively with Veracode's Application Risk Management platform, built for today's AI-driven world.
SSnyk
Snyk CLI scans and monitors your projects for security vulnerabilities.
WWebInspect
Dynamic application security testing tool for identifying vulnerabilities in web applications.
IImmuniWeb
AI-driven platform for application security testing and monitoring.
IInvicti (formerly Netsparker)
Web vulnerability scanner for automated detection of security issues in web applications.
CCobalt Strike
Adversary simulation tool for red team operations and security assessments.
CCheckmarx
Checkmarx agentic application security software platform Combines Hybrid scanning, AI-powered agents, and unified risk intelligence across every attack surface.
DDetectify
Find what's exposed and fix what matters, before attackers do.
BBurp Collaborator
Burp Collaborator is a network service that enables you to detect invisible vulnerabilities.
BBlack Duck
Black Duck delivers True Scale Application Security — SAST, SCA, DAST, and AI-powered AppSec — to help security and development teams detect vulnerabilities, manage open…
AArachni
Web Application Security Scanner Framework.
SSonarQube
Modernize your AI workflows with code verification for the agentic era.
DDependency-Check
OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.
P Probely
Web vulnerability scanner designed for continuous security testing.
NNetsparker Cloud (Invicti)
Cloud-based security testing tool for automated web vulnerability scanning.
CCodeScan
AutoRabit CodeScan™ secures and optimizes your Salesforce DevOps pipeline by providing real-time static code analysis and continuous compliance.
C Codified Security
Security testing for mobile applications with continuous integration support.
BBeagle Security
The AI-powered AppSec platform that identifies vulnerabilities with comprehensive penetration tests and provides actionable remediation insights.
GGoogle Nogotofail
Security testing tool for networks, focusing on detecting traffic interception vulnerabilities.
P Paros Proxy
Reviews, ratings, and information about Paros proxy: web proxies, web vulnerability scanners,.
BBugzilla
The software solution designed to drive software development Bugzilla lets you plan, organize and release software on your own teams.
JJIRA
Jira brings teams together to reach the next level of productivity with AI agents that orchestrate, plan, and track projects at scale.
M MantisBT
Mantis Bug Tracker (MantisBT).
ZZoho Bug Tracker
Zoho BugTracker is an online bug tracker and issue tracking software that helps you to track and fix bugs quickly.
BBacklog
Backlog is the all-in-one SaaS for all your project management software needs.
RRedmine
Mirror of redmine code source - Official Subversion repository is at https://svn.redmine.org/redmine - contact: @vividtone or maeda (at) farend (dot) jp.
BBugHerd
BugHerd makes it easy for clients to give website feedback and bug reports.
MMarker
Collect website feedback and report website bugs to Jira, Trello, Asana, and GitHub directly from your site with our design feedback software.
RRetina CS (BeuyondTrust)
Network security assessment tool with centralized vulnerability management features.
MMonday
Get more work done with AI agents that work side by side with your people.
CClickUp
Our mission is to make the world more productive.
GGoogle PageSpeed Insights
A tool that analyzes the content of a web page and provides suggestions to make that page faster.
G GTmetrix
A website performance testing tool that provides insights into how well your site loads and offers actionable recommendations.
W WebPageTest
An open-source tool that allows you to run performance tests on your website using real browsers at real consumer connection speeds.
LLighthouse
Automated auditing, performance metrics, and best practices for the web.
Y YSlow
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
NNew Relic
New Relic is an AI-powered observability platform that correlates your telemetry across your entire stack, so you can isolate the root cause and reduce MTTR.
SSiteSpeed.io
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various…
DDareBoost
All-in-one service for website speed test, web performance monitoring and website analysis (speed, SEO, quality, security).
UUptrends
Monitor web and API user journeys from 230+ ISP-based locations worldwide and feed outside-in synthetic insights into your open observability platform.
DDotcom-Monitor
Website monitoring that catches downtime before customers do.
SSucuri Load Time Tester
A tool that measures your website's load time from multiple locations around the globe.
KKeyCDN
Single asset performance test from multiple locations.
UUpzilla
Monitor website uptime, performance, availability monitoring and server uptime/downtime checks from multiple locations.
SSematext
IT system monitoring and management tools for DevOps who need 24x7 live visibility into their infrastructure.
MMonitis
A website performance monitoring tool that provides real-time performance metrics and alerts.
DDebugBear
Monitor website performance and Google Core Web Vitals with synthetic tests and real user monitoring (RUM).
IInstana
IBM Instana Observability provides real‑time application insight that traces requests, detects issues across the full application stack and speeds problem resolution.
MMonkeyTest
MonkeyTest agents use your site like a real user to find bugs, report them, and verify them once fixed.
JJest
Jest is a free, open-source JavaScript test runner with zero-config defaults, mocks, and snapshot testing.
VVitest
Vitest is a free, open-source unit test runner that reuses a Vite project's config, transforms, and plugins.
P pytest
pytest is the usual Python test runner: plain asserts, fixtures, parametrization, and a large plugin set.
JJUnit 5
JUnit 5 is the current JUnit for Java and the JVM: Jupiter for new tests, Platform to launch them, Vintage to run JUnit 4.
MMaestro
Maestro is a YAML UI test runner for Android, iOS, and web. The CLI is free and open source; Maestro Cloud is paid.
PPercy
Percy is BrowserStack's visual testing service. SDKs upload screenshots from your tests; reviewers accept or reject the diff.
CChromatic
Chromatic publishes Storybook and snapshots UI for visual review. The capture service is paid after a free monthly snapshot allowance.
AAllure Report
Allure Report turns test results from many frameworks into one HTML report. The report tool is free and open source.
RReportPortal
ReportPortal is an open-source test-results server with live reporting, failure analysis, and dashboards. Hosted support is paid.
CCurrents
Currents is a paid CI dashboard for Playwright and a few other runners: traces, flake detection, and test orchestration.
Aaxe-core
axe-core is Deque's open-source accessibility rules engine. It checks rendered HTML and reports WCAG violations as JSON.
PPa11y
Pa11y is a free, open-source command-line accessibility checker. It opens a URL in a headless browser and reports rule failures.
CCucumber
Cucumber is the open-source BDD tool that runs Gherkin feature files against step definitions. It is not CucumberStudio.
TTestcontainers
Testcontainers starts throwaway Docker containers from tests so integration tests can use real databases, brokers, and browsers.
SSentry
Sentry groups application errors and traces them across services. The hosted product has a free developer plan and paid team plans.
DDatadog
Datadog is a commercial cloud platform for metrics, traces, logs, and security signals. Products are priced separately.
G Grafana
Grafana is an open-source dashboard for metrics, logs, and traces. Grafana Cloud adds a hosted stack with a free tier and paid plans.
OOpenTelemetry
OpenTelemetry is the open standard and toolkit for traces, metrics, and logs. It is free; you still need a backend to store the data.
PPromptfoo
Promptfoo is an open-source CLI for LLM evals and red teaming. The community tool is free; enterprise features are quoted.
DDeepEval
DeepEval is an open-source LLM evaluation library with pytest-style asserts. Confident AI is the optional paid cloud from the same team.
LLangfuse
Langfuse is an open-source platform for LLM traces, prompts, and evals. Self-hosting is free; Langfuse Cloud is paid after a hobby tier.
MMomentic
Momentic tests web, iOS, and Android. Describe a step in plain English and the agent performs it. Tests adapt to small UI changes on their own.
SSemgrep
Semgrep is a fast static-analysis engine with a free open-source CLI and a paid platform for cross-file rules, supply chain, and secrets.
LLaunchDarkly
LaunchDarkly is a commercial feature-flag and experimentation platform. A developer plan is free; production use is metered, not sold per seat.
FFirebase Test Lab
Firebase Test Lab runs Android and iOS tests on Google-hosted devices. It is deprecated and scheduled to shut down on 30 September 2027.
P
Playwright MCP
Playwright MCP is Microsoft's Model Context Protocol server for browser automation, using structured accessibility snapshots.
TTestSprite
TestSprite is an AI testing agent that generates, runs and heals tests against a live app, from a CLI, an IDE MCP server, CI or a dashboard.
QQA Wolf
QA Wolf is a platform of AI testing agents that write, run and maintain end-to-end tests on web, mobile and desktop, billed per run rather than per seat.
BBrowser Use
Browser Use is an open-source, MIT-licensed browser agent that can drive a real browser from natural-language tasks, with a hosted cloud billed by browser-hour rather than a subscription.
R
Ragas
Ragas is an open-source library for systematically evaluating LLM applications, including RAG systems and agents.
L
LangSmith
LangSmith is LangChain's platform for observability and evaluation of LLM applications and agents, including offline and online evals.
CChecksum
Checksum is an AI QA engineer that writes Playwright tests as pull requests in your repo, runs them, and opens healing PRs when the product changes.