LeetCode has become one of the most popular platforms for coding interview preparation, and for good reason. Whether you’re a software engineer looking to land a job at a top tech company like Google or Amazon, or a beginner hoping to improve your coding skills, LeetCode offers a wealth of resources to help you succeed. Founded in 2015, it has rapidly grown into an essential tool for millions of learners worldwide.
LeetCode provides an extensive library of coding challenges ranging from basic algorithms to complex system design problems, making it suitable for both novice and experienced programmers.
The platform is especially known for its targeted approach to interview prep, offering company-specific question sets based on real interview experiences. It also features mock interviews and timed assessments to simulate the pressure of a real coding interview.
In this review, we’ll explore whether LeetCode lives up to the hype in 2025. We’ll dive into its features, pricing plans, pros, and cons, and give you an honest assessment of whether it’s the best platform to help you prepare for your next coding interview.
If you’re considering LeetCode for your coding journey, read on to discover what makes it stand out from the competition.
LeetCode Overview
LeetCode is an online platform that offers a vast array of coding challenges designed to prepare users for technical interviews. Founded in 2015, LeetCode has rapidly grown to become one of the most popular destinations for programmers looking to sharpen their problem-solving skills. The platform hosts a variety of problems across different domains, from simple algorithm challenges to complex system design problems.
LeetCode has been praised for its vast problem library, intuitive user interface, and strong community support. It’s one of the few platforms that offers specific features tailored to help users prepare for coding interviews at some of the biggest tech companies.
In 2025, LeetCode is not just a place to practice coding; it has evolved into a comprehensive tool that incorporates guided learning paths, mock interviews, and company-specific question sets, making it a one-stop solution for interview prep.
Key Features of LeetCode
1. Extensive Problem Library
LeetCode boasts an extensive library of over 3,500 coding problems. These are broken down into various categories, such as algorithms, data structures, databases, and more. The problems are organized by difficulty level—easy, medium, and hard—making it easier for users to find tasks that match their skill level.
What makes LeetCode particularly useful is its problem categorization. You can filter problems by topic (arrays, strings, dynamic programming, etc.), which allows for focused practice. This structure helps users build foundational knowledge in specific areas and progress to more complex problems as their skills improve.
2. Company-Specific Question Sets
One of the standout features of LeetCode is its collection of company-specific question sets. If you’re targeting a particular company, LeetCode makes it easy to find coding problems that are frequently asked during interviews at companies like Google, Amazon, Microsoft, and Facebook. This is invaluable for those who want to focus their preparation on problems that are most likely to appear in their target company’s interviews.
LeetCode aggregates real interview questions from various sources and presents them as company-specific problem sets, giving users a tailored preparation experience. If you’re aiming for a job at Google, for example, you can go through the questions that are most commonly asked during Google’s technical interviews. This specificity significantly streamlines the preparation process.
3. Mock Interviews and Timed Assessments
Preparing for a coding interview is not just about solving problems—it’s also about timing yourself and getting comfortable under pressure. LeetCode offers mock interviews and timed assessments to replicate real interview scenarios. This is crucial for building the speed and accuracy needed to perform well in an actual interview.
The timed assessments help you practice solving problems within a time limit, much like you would during a real coding interview. This feature can help reduce interview anxiety and teach you how to manage your time effectively during high-pressure situations. Additionally, you can track your progress over time and identify areas where you need to improve.
4. Detailed Solutions and Explanations
After solving a problem (or attempting to), LeetCode provides detailed solutions and explanations to guide users through the problem-solving process. These solutions include step-by-step explanations, code walkthroughs, and time and space complexity analysis. This level of detail ensures that users not only learn how to solve problems but also understand the underlying principles behind the solutions.
This feature is especially helpful for users who may not know how to approach a problem or need clarification on a specific concept. LeetCode’s explanations are written in a clear, concise manner, making complex concepts easier to digest.
5. Community Engagement and Discussion Forums
LeetCode has a vibrant community of developers, learners, and professionals who actively engage in discussions on various topics. The platform features a robust discussion forum where users can share solutions, ask questions, and discuss different approaches to problems. This community-driven feature adds a layer of interactivity that enhances the learning experience.
If you get stuck on a problem or need guidance, you can quickly find solutions and insights from others in the community. You can also share your own solutions, which contributes to the overall learning ecosystem. The discussion forums on LeetCode are a fantastic resource for collaborative learning.
6. Explore Feature (Learning Paths)
The Explore feature offers structured learning paths, guiding users through specific topics or concepts in a logical sequence. These learning paths are ideal for those who are new to coding or for individuals who want to follow a structured approach to learning without feeling overwhelmed by the sheer number of problems available.
For example, LeetCode offers a “LeetCode 75” path, which covers the 75 most essential problems that will prepare you for coding interviews. These paths typically focus on foundational knowledge, with an emphasis on solving problems in a logical order, making it easier for users to progress from beginner to intermediate levels.
Courses and Learning Paths Offered
LeetCode has developed several courses and learning paths designed to help users prepare for coding interviews in an organized, systematic way. These courses are perfect for those who are looking for more structured preparation.
- LeetCode 75: This is a beginner-friendly collection of 75 essential coding problems covering the core topics of data structures and algorithms. Completing this set of problems will prepare you for the most common interview challenges.
- Top Interview 150: This course consists of 150 problems frequently asked in interviews at top tech companies like Amazon, Google, and Microsoft. These problems span a range of difficulty levels and topics, providing a comprehensive interview prep experience.
Both of these courses are curated in a way that prioritizes the most important topics and problems, helping users focus on the most relevant material for interviews.
Pricing
Free Plan
LeetCode offers a free plan that provides access to over 300 problems, community discussions, and basic features. This plan is great for beginners who want to dip their toes into the world of coding interviews without committing to a paid subscription. While the free plan is limited in terms of advanced features, it still provides ample opportunities to practice and build foundational knowledge.
Premium Plan
The Premium plan unlocks a wealth of additional features, such as access to all problems, company-specific question sets, mock interviews, and timed assessments. This plan is priced at $35 per month or $159 per year. The annual subscription offers a substantial discount, which is more affordable than many other coding platforms.
The Premium plan is ideal for individuals who are serious about preparing for coding interviews and want to maximize their learning experience. The additional features like priority judging and detailed solutions can make a significant difference in the quality of preparation.
Pros and Cons of LeetCode
Pros
- Comprehensive Problem Set: LeetCode offers an extensive library of problems, ensuring that users have a wide variety of coding challenges to tackle.
- Targeted Company-Specific Questions: The ability to focus on problems asked by specific companies makes LeetCode an essential tool for targeted interview prep.
- Structured Learning Paths: The Explore feature and curated courses provide structured and guided preparation, which is perfect for those who prefer a more organized approach.
- Vibrant Community: The community forums foster a collaborative environment where users can ask questions, share solutions, and learn from others.
- Mock Interviews and Timed Assessments: These features simulate real-world interview conditions, which helps reduce stress and improve performance under pressure.
Cons
- Premium Features Behind a Paywall: Some of the best features, such as company-specific question sets and mock interviews, are only available with the Premium plan.
- Overwhelming for Beginners: The vast number of problems can be overwhelming, especially for individuals who are new to coding or preparing for interviews for the first time.
- Limited System Design Focus: While LeetCode excels at algorithm and data structure problems, it has limited content related to system design interviews, which are an essential part of many tech interviews.
Conclusion
In 2025, LeetCode remains one of the best platforms for coding interview preparation. Its extensive problem library, company-specific question sets, and structured learning paths provide an all-in-one solution for anyone preparing for technical interviews. While the platform’s premium features come at a cost, the free plan offers enough value for those just starting.
LeetCode’s strengths lie in its variety, depth, and targeted focus on preparing users for interviews at major tech companies. However, its overwhelming problem set can be intimidating for beginners, and its limited system design resources may require users to seek additional resources.
Overall, LeetCode is highly recommended for anyone looking to build a solid foundation in algorithms and data structures and for those targeting tech companies that place a strong emphasis on coding challenges.
FAQs
Is LeetCode Premium worth the cost?
LeetCode Premium is worth it if you’re actively preparing for coding interviews. It unlocks company-specific problems, mock interviews, and priority support, which significantly enhance the learning experience.
Can I prepare for interviews using only the free plan?
Yes, the free plan offers enough problems and community support to help you prepare effectively for interviews, though the Premium plan provides more comprehensive features.
Does LeetCode offer resources for system design interviews?
While LeetCode primarily focuses on algorithms and data structures, it has some resources related to system design. However, additional resources may be necessary for full system design prep.
How often are new problems added to LeetCode?
LeetCode regularly updates its problem library with new challenges, ensuring the content stays relevant and in line with the latest trends in coding interviews.
Can I use LeetCode for practicing competitive programming?
Yes, LeetCode hosts regular contests where users can practice competitive programming. These contests help improve problem-solving speed and enhance coding skills under time pressure.