GeeksforGeeks is an all-in-one learning portal for computer science, programming articles, quizzes, and interview preparation for tech professionals.

InterviewBit is an online platform for coding interview preparation, offering practice problems, mock interviews, and courses for aspiring software engineers.

Exponent is a Learning Platform that offers premium courses for tech interview preparation in product management, engineering, and more, including hands-on coaching and mock interviews with experts.

TechGeekBuzz offers free tutorials, coding examples, interview questions, and roadmaps for aspiring and current tech professionals learning programming and IT skills.

InterviewReady is an online course platform for software engineers focused on system design and AI engineering interviews, used by professionals seeking top tech jobs.

AiMock is an AI-powered mock interview platform for tech interview preparation and is used by engineers.