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.
89 tools
Apache JMeter
Load & Performance
The open-source workhorse: every protocol, a GUI, and twenty-five years of plugins.
Burp Suite
Security Testing
The professional web security tester's tool of choice, plus an enterprise scanner.
Datadog Synthetic Monitoring
Monitoring
Synthetic checks correlated with APM traces, logs and infrastructure metrics.
GitHub Issues & Projects
Bug Tracking
Issue tracking where the code already lives, free for most teams.
Hotjar
Session Replay
Closed to new signups — Hotjar has been absorbed into Contentsquare.
Jira
Bug Tracking
The default enterprise issue tracker, endlessly configurable for better and worse.
Microsoft Clarity
Session Replay
Free, unlimited session replay and heatmaps. Genuinely free, at any traffic volume.
OWASP ZAP
Security Testing
The free, open-source DAST scanner that attacks your running application.
Postman
API Testing
The API platform most developers already have open: requests, collections, tests, mocks.
TestRail
Test Management
The most widely deployed standalone test management tool.
Trivy
Security Testing
One open-source scanner for containers, filesystems, repos, IaC and Kubernetes.
UserTesting
User Research
The largest participant network for moderated and unmoderated usability studies.
Xray
Test Management
Jira-native test management where test cases are Jira issues.
Artillery
Load & Performance
YAML or JavaScript load tests that run serverless on AWS at large scale.
axe DevTools
Accessibility
Deque's commercial layer over axe-core: guided manual testing and enterprise reporting.
BlazeMeter
Load & Performance
Managed cloud execution for JMeter, Gatling, k6 and Selenium scripts.
FullStory
Session Replay
Retroactive analytics: define a metric today and get its history from recorded sessions.
Karate
API Testing
API testing, mocks, performance and UI automation in one Gherkin-based DSL.
Katalon Studio
E2E & UI Testing
All-in-one low-code platform covering web, API, mobile and desktop.
Linear
Bug Tracking
Fast, opinionated issue tracking that engineering teams actively like using.
Maestro
Mobile Testing
Mobile UI testing in a few lines of YAML, with tolerance for flakiness built in.
Matomo
Session Replay
Self-hosted web analytics with 100% data ownership and no sampling.
Maze
User Research
Rapid unmoderated testing on live products and Figma prototypes, with quantitative output.
Mockoon
Test Data & Mocks
Spin up a realistic mock API from a desktop app in under a minute.
Optimizely
A/B & Flags
The original web experimentation platform, now a full digital experience suite.
Pingdom
Monitoring
Long-established uptime and transaction monitoring, now part of SolarWinds.
Prolific
User Research
High-quality participant recruitment for surveys and studies, originally from academia.
Robot Framework
E2E & UI Testing
Keyword-driven acceptance testing that reads like structured English.
Siteimprove
Accessibility
Enterprise accessibility, SEO and content-quality governance across whole websites.
SoapUI / ReadyAPI
API Testing
The long-standing tool for SOAP, JMS and enterprise protocol testing.
Tricentis Tosca
E2E & UI Testing
Model-based enterprise test automation for SAP, mainframe and packaged applications.
TruffleHog
Security Testing
Open-source secret scanning that verifies whether the credential is still live.
UptimeRobot
Monitoring
Free uptime monitoring for 50 endpoints. The pragmatic starting point.
User Interviews
User Research
Recruitment marketplace: find and pay participants, bring your own research method.
VWO
A/B & Flags
Experimentation plus heatmaps, replay and surveys in one conversion-optimisation suite.
WAVE
Accessibility
Visual accessibility evaluation that shows problems in place on the page.
Zephyr Scale
Test Management
SmartBear's Jira-native test management, built for scale and reuse.
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.
Apidog
API Testing
Design, mock, test and document APIs in one integrated workspace.
Azure Test Plans
Test Management
Microsoft's test management, included in the Azure DevOps stack.
Better Stack
Monitoring
Uptime monitoring, incident management and status pages in one affordable product.
BugHerd
Bug Tracking
Point-and-click website feedback that pins comments to the exact element.
Crazy Egg
Session Replay
Heatmaps, recordings and A/B testing in one tool, priced by pageview.
Dovetail
User Research
Research repository: store, tag and search every interview your organisation has run.
Grafana Synthetic Monitoring
Monitoring
k6-powered checks inside Grafana Cloud, alongside your existing dashboards.
Invicti
Security Testing
DAST with proof-based scanning that confirms a vulnerability is real before reporting it.
Jam
Bug Tracking
One-click bug reports with a replay, console and network log for developers.
Kameleoon
A/B & Flags
Experimentation and personalisation with a strong hybrid client/server model.
Level Access
Accessibility
Accessibility platform combined with expert audits and legal-risk support.
Lyssna
User Research
Fast, affordable design testing: five-second tests, first-click, preference, surveys.
mabl
E2E & UI Testing
Low-code, AI-assisted test automation with self-healing locators.
Marker.io
Bug Tracking
In-page bug reporting that attaches console logs, network activity and a replay.
Mockaroo
Test Data & Mocks
Design a realistic dataset in the browser and export it as CSV, JSON or SQL.
Mouseflow
Session Replay
Behaviour analytics with friction scoring and form-drop-off analysis.
NeoLoad
Load & Performance
Enterprise performance testing with strong SAP, Citrix and Oracle support.
OpenText LoadRunner
Load & Performance
The original enterprise load-testing suite. Fifty-plus protocols, decades of use.
Optimal Workshop
User Research
Information-architecture research: card sorting, tree testing, first-click.
Prism
Test Data & Mocks
Turn an OpenAPI document into a mock server that validates as well as responds.
Qase
Test Management
Modern, fast test management with a workable free tier and clean API.
QMetry Test Management
Test Management
Enterprise test management with quality analytics and deep Jira integration.
Ranorex Studio
E2E & UI Testing
Windows-centric automation for desktop, web and mobile from one IDE.
Redmine
Bug Tracking
Free, self-hosted project and issue tracking that has outlived most competitors.
Respondent
User Research
Recruiting for hard-to-reach B2B and professional participants.
StatusCake
Monitoring
Affordable uptime, page-speed, SSL and domain monitoring from many global locations.
Survicate
User Research
Ask the question where the behaviour happened: in-product, email, mobile or link.
Testim
E2E & UI Testing
AI-assisted authoring with smart locators, now part of Tricentis.
Testsigma
E2E & UI Testing
Write tests in plain English, run them on web, mobile and APIs.
Tonic.ai
Test Data & Mocks
De-identify production data into safe, realistic, referentially intact test databases.
Userlytics
User Research
Moderated and unmoderated testing with a global panel and flexible pricing.
Usersnap
Bug Tracking
Combined bug reporting and product-feedback capture with survey tooling.
YouTrack
Bug Tracking
JetBrains' issue tracker with a query language built for fast bulk triage.
Autify
E2E & UI Testing
AI-maintained web and mobile tests aimed at teams with no automation engineers.
Convert Experiences
A/B & Flags
Privacy-focused A/B testing with unlimited experiments and no data selling.
Great Question
User Research
End-to-end research operations: recruit, schedule, run, analyse, share.
Gretel.ai
Test Data & Mocks
Discontinued as a standalone product; the technology now ships inside NVIDIA NeMo.
Hoverfly
Test Data & Mocks
Lightweight service virtualisation: capture real traffic, then simulate it.
Leapwork
E2E & UI Testing
Visual flowchart automation designed for business users, not engineers.
Neosync
Test Data & Mocks
Archived: open-source data anonymisation, no longer maintained after the Grow Therapy acquisition.
Rainforest QA
E2E & UI Testing
No-code test automation with an on-demand human tester fallback.
Reflect
E2E & UI Testing
No-code browser testing recorded in the cloud, with visual and API assertions.
Specmatic
API Testing
Turn OpenAPI and AsyncAPI specs into executable contracts and smart mocks.
Step CI
API Testing
Open-source API testing configured entirely in YAML, built for pipelines.
Testiny
Test Management
Lightweight European test management with straightforward pricing.
Testmo
Test Management
Unified management of manual test cases, exploratory sessions and automation results.
Useberry
User Research
Unmoderated tests and live interviews on prototypes and websites, in one tool.
Virtuoso QA
E2E & UI Testing
Natural-language authoring with self-healing, aimed at enterprise QA teams.
Waldo
Mobile Testing
No-code mobile testing recorded in a browser-based device session.
TestDriver
E2E & UI Testing
Vision-model E2E testing that drives a real desktop instead of querying the DOM.