Tech interviews are often the most challenging part of landing a job in the software industry. Whether you are a recent graduate, switching careers, or an experienced developer aiming for top tech companies, preparation is key.
Fortunately, many websites can help streamline your journey, offering everything from coding problems and system design to behavioral questions and resume tips. In this article, we’ll explore seven of the best websites for tech interview prep in 2025, including trusted names like LeetCode and GeeksforGeeks, and rising stars like TechWithKP.
1. LeetCode: The Gold Standard for Coding Practice
Website: Leetcode
LeetCode is arguably the most popular platform among software engineers preparing for technical interviews. With an extensive collection of problems, categorized by topic and difficulty, it has become a staple for interview prep. There are a lot of problems with different difficulty levels, ranging from Easy to Medium to Hard.
Key Features
Over 3,000 coding problems
Company-specific questions
Discussion forums and solutions
Mock interviews and contests
Premium membership for curated content
Why LeetCode?
LeetCode stands out for its real-world problem sets sourced from interviews at companies like Google, Amazon, and Microsoft. If you’re aiming for a FAANG company, LeetCode is practically a must.
Tips for Using LeetCode
Start with the “Top Interview Questions” list.
Focus on problem categories like arrays, strings, dynamic programming, and graphs.
Use the “Explore” feature to follow guided learning paths.
2. GeeksforGeeks: Your Computer Science Companion
GeeksforGeeks is a comprehensive resource for both coding and theoretical computer science concepts. It is especially useful for those who need to brush up on fundamentals.
Key Features
Extensive tutorials and articles
Interview experiences shared by candidates
Topic-wise questions and solutions
Quizzes and assessments
SDE Sheets and curated lists
Why GeeksforGeeks?
Its rich content library covers almost every topic needed for technical interviews, including data structures, algorithms, databases, operating systems, and system design.
Tips for Using GeeksforGeeks
Follow the “SDE Sheet” for a focused prep strategy.
Read through interview experiences to understand company-specific processes.
Use their coding practice platform to test your skills.
3. TechWithKP: Smart Prep Meets Real-World Projects
Website: TechWithKP
TechWithKP is an up-and-coming platform that blends technical interview prep with real-world development and career-building strategies. It’s perfect for those who want to strengthen their practical knowledge alongside coding skills.
Key Features
Deep dive into specific topics related to programming
Practical examples along with detailed explanations
Different interview structures and techniques
Interview tips and mock interview questions
In-depth explanations of algorithms and data structures
Why TechWithKP?
TechWithKP fills the gap between traditional coding practice and modern tech readiness. It’s ideal for developers who want to build a strong portfolio while preparing for interviews.
Tips for Using TechWithKP
Follow and study each article for practical development skills.
Go through the content and then try to practice on your own.
Follow the code and instructions given in the articles.
Also Read: Best Technology Trends You Must Know About
4. InterviewBit: Learn in a Gamified Way
InterviewBit offers a structured path to mastering data structures and algorithms through a gamified experience. It’s especially effective for learners who need daily motivation.
Key Features
Level-based problem sets
Timed coding challenges
Real interview questions
Company-specific tracks
Structured curriculum
Why InterviewBit?
InterviewBit gamifies learning, making it more engaging and less daunting. It encourages daily practice and consistent improvement.
Tips for Using InterviewBit
Use the weekly challenges to build competitive coding skills.
Follow the structured track to avoid decision fatigue.
Leverage company-specific prep plans if targeting specific employers.
5. HackerRank: Skill Building and Job Opportunities
HackerRank is widely used by companies for coding assessments and hiring challenges. For candidates, it’s a great platform to practice and get certified.
Key Features
Practice problems in multiple domains
Certification challenges
Public leaderboards and competitions
Real company hiring tests
Why HackerRank?
HackerRank is not only a practice platform but also a bridge to employment. Performing well can attract recruiter attention directly.
Tips for Using HackerRank
Attempt certification tests to stand out to employers.
Explore different domains like SQL, AI, or functional programming.
Join contests for real-time challenge exposure.
6. Pramp: Practice With Peers
Pramp provides free mock interviews with other candidates, simulating a real interview environment. It’s a great way to practice communication, technical explanation, and problem-solving under pressure.
Key Features
Free peer-to-peer interviews
Coding, behavioral, and system design sessions
Real-time feedback
Anonymous and randomized pairings
Why Pramp?
Tech interviews aren’t just about solving problems but also explaining your thought process. Pramp helps improve verbal communication and on-the-spot thinking.
Tips for Using Pramp
Schedule regular mocks to build confidence.
Choose a variety of session types for well-rounded practice.
Use feedback to pinpoint and improve weaknesses.
7. Exponent: Crack System Design and Behavioral Rounds
Exponent is tailored for those preparing for behavioral and system design interviews, particularly for senior roles. It’s a solid choice for mid-level and experienced engineers.
Key Features
Video-based lessons and mock interviews
System design deep-dives
Behavioral interview preparation
Interview coaching from industry experts
Why Exponent?
As you grow in your career, interviews become more about system architecture and leadership. Exponent is designed to help you master these advanced rounds.
Tips for Using Exponent
Start with system design basics, then progress to case studies.
Use behavioral guides to prepare compelling stories.
Consider coaching for tailored feedback.
8. Codeforces: Compete and Improve
Codeforces is a competitive programming platform that sharpens your problem-solving and algorithmic thinking skills. It’s particularly useful for students and engineers aiming for top-tier performance in interviews.
Key Features
Regular coding contests
Challenging algorithmic problems
Active community and editorial discussions
User rating system to track growth
Why Codeforces?
While not an interview-specific platform, Codeforces dramatically improves your ability to think under pressure. Many top candidates use it to build speed and depth in algorithmic thinking.
Tips for Using Codeforces
Participate in regular contests to improve time management.
Solve previous contest problems and read editorials.
Track your progress and strive to improve your rating.
Also Read: 8 Excellent Platforms for Building Mobile Apps
Final Thoughts: Choose the Right Mix
There’s no single best platform for everyone. Your ideal mix depends on your goals, experience level, and learning style. Here’s a quick guide:
- Beginner? Start with GeeksforGeeks and InterviewBit.
- Aiming for FAANG? Dive deep into LeetCode, Pramp, and Exponent.
- Want a modern edge? Use TechWithKP for project-based learning and strategy.
- Need practical experience? Try HackerRank for certifications and hiring tests.
- Sharpen problem-solving skills? Practice regularly on Codeforces.
Stay consistent, track your progress, and don’t ignore soft skills. The tech interview journey is tough, but with the right tools, you’ll be ready to succeed.
Also Read: 15 Awesome Free Google Tools