Functional web testing
Selenium, Sahi, QTP, Coded UI, EggPlant, RFT, Badboy, FitNesse, TestComplete, Cucumber, WebdriverIO, Protractor
Performance testing
Gatling, JMeter, NeoLoad, Badboy, StressStimulus, Fiddler
Security testing
PenQ, NetSparker, WebCruise, Scrawler, Arachni, Nikto
Defect tracking
Bugzilla, Redmine, JIRA, Trac, QC
Test management
TestRail, Pivotal Tracker, TestLink , HP ALM, Enterprise Tester, Squash
Browser compatibility testing
BrowserStack, Browsera, Sauce Labs, Adobe BrowserLab
iOS/Android app testing
FoneMonkey, Appium, EggPlant, UI Automation, UI Automator, Selendroid
Mobile app compatibility testing
Sauce Labs, AWS Device Farm, Perfectomobile.com, deviceanywhere.com
Unit testing
PHPUnit, JUnit, NUnit, TestNG, RSpec
Continuous integration
CircleCI, CruiseControl, Bamboo, Jenkins
Version control
Git, SVN, CVS, VSS