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This wiki post is a consolidation of and is grateful for the following original mega-thread: Products and sites to practice testing on.
API
- Restful-booker by @mwinteringham
- SWAPI - Star Wars API Integrations
- {JSON} Placeholder
- Marvel Interactive API Tester
- Ergast Developer API
- Public APIs
Accessibility
- Welcome to CityLights! [Inaccessible Home Page]
- Recipe Dashboard
- Travel by train and bus made easy | Dream Destination
- Gefälscht CompuTech
- Mars Commuter: Travel to Mars for Work or Pleasure!
Automation
Java
Multiple uses
(functional, non-functional, API, UI automation, manual, exploratory etc)
- Simple Travel Agency!
- Testing Challenges
- Testing the UI and API together with my new practice app! by @g33klady
- Restful Booker Platform by @mwinteringham
- Sauce Demo
- JPetStore
- Contact List App
- OpenCart Demo
- Alan Richardson’s Tools
- ToDOInterviewTest
- FindBugs
- AcademyBugs
- QA Practice
- Practice Software Testing
Oracles
Performance
Security
- OWASP Juice Shop
- Web Application Exploits and Defenses
- The OWASP Vulnerable Web Applications Directory Project
- Open Web Application Security Project (OWASP) Broken Web Applications Project
- Zero Bank
- Ticket Magpie by @danielbilling
- SecurityTestActivity by @oxygenaddict
Selenium
Places that list multiple sites to practice
What else? Feel free to edit this page if you see something is missing.