All testing tools
193 tools across 17 categories. Filter by what you actually need — your language, your budget shape, whether it has to run on your own infrastructure.
47 tools
Appium
Mobile Testing
The cross-platform standard for native, hybrid and mobile-web automation.
axe-core
Accessibility
The open-source accessibility rules engine almost every other tool is built on.
BrowserStack
Device Cloud
The largest browser and real-device cloud, with 3,500+ device/browser combinations.
Dependabot
Security Testing
Free dependency updates and vulnerability alerts, built into GitHub.
LaunchDarkly
A/B & Flags
The enterprise feature-flag platform, with experimentation layered on top.
Playwright
E2E & UI Testing
Microsoft's cross-browser automation library with tracing and auto-waiting built in.
Renovate
Security Testing
Highly configurable automated dependency updates, free and self-hostable.
Selenium WebDriver
E2E & UI Testing
The W3C standard for browser automation. Every language, every browser, twenty years of it.
Sentry
Monitoring
Error tracking with stack traces, release attribution and now session replay.
Snyk
Security Testing
Developer-first security across dependencies, code, containers and infrastructure.
SonarQube
Code Quality
The static-analysis standard: 30+ languages, quality gates, clean-as-you-code.
Testcontainers
Test Data & Mocks
Real databases and services in throwaway Docker containers, per test run.
WireMock
Test Data & Mocks
The standard HTTP mock server for JVM and beyond: record, replay, stub, simulate faults.
xUnit.net
Unit & Component
The modern .NET testing framework, and the one Microsoft's templates default to.
Applitools Eyes
Visual Testing
Visual AI that compares screenshots the way a person would, not pixel by pixel.
axe DevTools
Accessibility
Deque's commercial layer over axe-core: guided manual testing and enterprise reporting.
Checkmarx One
Security Testing
Enterprise application security platform: SAST, SCA, DAST, IaC and API security.
CodeQL
Security Testing
Query your codebase like a database to find vulnerability patterns across the whole repo.
Cucumber
E2E & UI Testing
Behaviour-driven development with Gherkin scenarios shared by business and engineering.
Dynatrace
Monitoring
Full-stack observability with automatic dependency mapping and AI root-cause analysis.
GitGuardian
Security Testing
Secrets detection across your repositories, history and developer machines.
GrowthBook
A/B & Flags
Open-source feature flags and experimentation that runs on your data warehouse.
Mend.io
Security Testing
Software composition analysis with automated remediation and licence compliance.
NUnit
Unit & Component
The long-standing .NET test framework with the richest assertion set.
Optimizely
A/B & Flags
The original web experimentation platform, now a full digital experience suite.
Pact
API Testing
Consumer-driven contract testing so services can deploy independently.
Sauce Labs
Device Cloud
Enterprise-grade device cloud with deep analytics and strong security posture.
Selenium Grid
Device Cloud
Run your own browser grid on your own infrastructure, for free.
Semgrep
Security Testing
Pattern-based static analysis where rules look like the code they match.
Statsig
A/B & Flags
Feature flags, experimentation and product analytics in one warehouse-friendly platform.
TestMu AI
Device Cloud
Cost-competitive device cloud with an AI-assisted test-orchestration layer.
Unleash
A/B & Flags
Open-source feature management with a privacy-first, self-hosted architecture.
Veracode
Security Testing
Application security as a service, with policy enforcement and compliance attestation.
AB Tasty
A/B & Flags
European experimentation and personalisation platform with strong GDPR positioning.
Allure TestOps
Test Management
Automation-first test management built around the Allure reporting format.
Codacy
Code Quality
Automated code review with security scanning and coverage in the pull request.
ConfigCat
A/B & Flags
Simple, cheap feature flags with unlimited team members on every plan.
DeepSource
Code Quality
Static analysis with autofix, tuned hard for low false-positive rates.
Flagsmith
A/B & Flags
Open-source feature flags and remote config with straightforward self-hosting.
Kameleoon
A/B & Flags
Experimentation and personalisation with a strong hybrid client/server model.
OpenText LoadRunner
Load & Performance
The original enterprise load-testing suite. Fifty-plus protocols, decades of use.
Perfecto
Device Cloud
Enterprise mobile and web testing cloud with carrier-network and biometric coverage.
Qodana
Code Quality
JetBrains' IDE inspections, running as a CI quality gate.
Ranorex Studio
E2E & UI Testing
Windows-centric automation for desktop, web and mobile from one IDE.
Split
A/B & Flags
Feature delivery with automatic impact measurement on every flag.
Kobiton
Mobile Testing
Real-device cloud with the option to connect your own devices to the same platform.
TestingBot
Device Cloud
Straightforward, keenly priced Selenium and Appium grid from a small European vendor.