LeetCode

LeetCode is an online platform for preparing technical coding interviews. It contains a large database of coding questions and allows users to practice and submit solutions to these questions, track progress, participate in contests, and more.

LeetCode alternatives ➤

What is LeetCode?

LeetCode is an online platform used by software engineers to prepare for technical coding interviews. With a database of over 2,500 questions, it allows users to practice coding interview questions on data structures, algorithms, object-oriented design, databases, and more. LeetCode questions are modeled after real coding interview questions asked at top technology companies such as Google, Meta, Amazon, and Microsoft.

By solving LeetCode questions, software engineers can develop and strengthen core computer science concepts and programming skills needed to pass coding interviews. For each question, users can submit solutions in over a dozen programming languages including Java, Python, C++, C#, JavaScript, Ruby, Swift, Go, and SQL. The platform then checks the logic and efficiency of each submitted solution.

In addition to the extensive question bank, LeetCode provides other helpful workflow tools. There is a progress tracker to monitor performance over time. Users can time their solutions to simulate real coding interview constraints. Those preparing for upcoming interviews at specific companies can filter questions by company to practice relevant questions. Contests provide additional opportunities to practice questions in a timed environment.

With its focus on interview preparation, large community of users, and continually expanding question database, LeetCode has become an essential platform for software engineers looking to land jobs at top tech companies.

Official Links

Official Website
leetcode.com

The Best LeetCode Alternatives

Top Apps like LeetCode

Khan Academy, Codecademy, Codewars, Edabit, CodinGame, exercism, HackerRank, Screeps, Project Euler, Codeeval, Codier, Coderbyte, Remoteinterview, Codechef, CodeGym.cc, Topcoder, CodeSignal, InterviewBit, BitDegree, Codeforces, Binary Search, HackerEarth, Codility.com, Kattis, KillerCoder, CheckIO, Spoj, GetBadges, Sphere Contest, The AI Games, Codela, Interviewme.io are some alternatives to LeetCode.

Sugggest an alternative ❐

Khan Academy

Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan. The goal of Khan Academy is to provide a free, world-class education to anyone, anywhere.The platform offers practice exercises, instructional videos, and a personalized learning dashboard that empowers learners to study at their own pace in...

Codecademy

Codecademy is an online education platform founded in 2011 that focuses on teaching coding skills interactively through its website. It offers free and paid coding courses across 12 programming languages including Python, JavaScript, Java, Ruby, SQL, C++, C#, Swift, Go, Sass, R, and Kotlin.The platform uses an innovative hands-on approach where...

Codewars

Codewars is an online community and learning tool for computer programming. It provides code challenges known as kata which are ranked from 8 (easiest) to 1 (hardest) based on difficulty. The core premise is to train users to improve their coding skills by solving these programming challenges.After signing up for a...

Edabit

Edabit is an interactive platform designed to help people learn and practice coding. It offers a large collection of bite-sized coding challenges and exercises across multiple programming languages including Python, JavaScript, Java, Ruby, C++, and more.The interactive challenges on Edabit allow users to write and test short code snippets...

CodinGame

CodinGame is an online learning platform that helps developers improve their coding skills through fun programming puzzles and challenges. It features over 50 programming languages to code in and provides an engaging way for developers to level up their skills.On CodinGame, developers can go through different challenges and puzzles of...

Exercism

Exercism is an online platform designed to help people improve their programming skills through practice and mentorship. It provides a collection of programming exercises in over 50 different languages that users can complete at their own pace.After completing an exercise, users can submit their solution to the Exercism community for...

HackerRank

HackerRank is an online platform and community where developers can sharpen their coding skills. Founded in 2011, HackerRank offers practice problems and competitive programming challenges across a variety of domains and programming languages. Developers use the platform to prepare for programming interviews, compete in code contests, collaborate on coding, and build...

Screeps

Screeps is an unique sandbox MMO RTS game meant for programmers, wherein players script the behaviors of colonies of robots using JavaScript. The aim is to harvest energy and build structures in order to expand your colony's control over the map.Players write complex AI routines in JavaScript to program...

Project Euler

Project Euler is an online platform that hosts a collection of over 750 mathematical problems aimed at encouraging both mathematicians and programmers to solve computational and logic-based puzzles. The problems on Project Euler range in difficulty from relatively simple to extremely challenging.The core premise of Project Euler is to provide...

Codeeval

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Codier

Codier is a popular open-source code editor and integrated development environment (IDE) optimized for web development. It comes packed with features that improve developer productivity such as:Syntax highlighting for major programming languages like HTML, CSS, JavaScript, TypeScript, PHP, Python, and moreIntelligent code completion and validation to speed up codingBuilt-in...

Coderbyte

Coderbyte is an online learning and assessment platform designed to help developers improve their programming skills and prepare for technical interviews. It was founded in 2011 with the goal of providing an interactive way for developers to practice coding outside of a classroom environment.The platform features over 200 coding challenges and...

Remoteinterview

Remoteinterview is a cloud-based video interview platform designed to make the recruiting process more efficient through the use of video technology. The software allows recruiters and hiring managers to conduct interviews with candidates via video call or through pre-recorded video questions.Some key features of Remoteinterview include:Options for live...

Codechef

Codechef is an online competitive programming platform created in 2009. It brings together programmers from across the world to solve coding problems and challenges. Codechef aims to provide a place for programmers to enhance their coding skills.On Codechef, registered participants can participate in various programming contests and submit solutions to...

CodeGym.cc

CodeGym.cc is an interactive online platform designed for learning and mastering programming. It utilizes a hands-on learning methodology that allows beginners with zero experience to start coding in real-world projects from day one.The platform features over 2,500 practical coding challenges and projects in Java, Python, JavaScript, C#, and other...

Topcoder

Topcoder is an online platform and open community that connects businesses with a global network of developers, designers, data scientists, and competitive programmers. Founded in 2001, Topcoder pioneered the crowdsourcing model by offering businesses the ability to tap into the skills and expertise of its large community members through competitive programming...

CodeSignal

CodeSignal is an online coding platform designed to help software engineers prepare for technical interviews and assessments. Founded in 2014, CodeSignal provides a suite of tools to improve coding skills, practice solving programming challenges, and demonstrate abilities to potential employers.Some key features of CodeSignal include:Coding challenges - A vast...

InterviewBit

InterviewBit is an online platform designed to help engineers and programmers prepare for technical coding interviews. Founded in 2014, InterviewBit aims to make the interview preparation process more streamlined and effective through its structured curriculum of coding problems, mock interviews, and learning resources.The platform contains over 500 coding problems covering topics...

BitDegree

BitDegree is an online education and training platform focused on blockchain and related technologies. It aims to democratize access to high-quality education and training through an innovative incentive-based learning model.Some key things to know about BitDegree:It offers both free and paid online courses in areas like cryptocurrency, programming...

Codeforces

Codeforces is an online platform designed for hosting competitive programming contests. It was launched in 2010 by a team of competitive programmers from Saratov State University in Russia.Some key features and information about Codeforces:Hosts regular contests focused on algorithms and data structures, with contests ranging from Div. 1 (highest/hardest...

Binary Search

Binary search is an algorithm for searching sorted data structures efficiently. It works by using a divide-and-conquer approach to narrow down the region where the target value may be present:The algorithm begins by comparing the target value to the middle element of the entire sorted data set.If the...

HackerEarth

HackerEarth is an end-to-end developer hiring platform that helps tech recruiters and companies conduct online coding tests to screen candidates and assess their programming skills during interviews. The hiring platform aims to make tech recruitment easier, faster, and more effective.HackerEarth's key features include:Online code editor with various programming...

Codility.com

Codility is an online platform used by companies and candidates to assess, develop, and certify coding skills through timed coding challenges and automated testing suites. Candidates complete programming tasks in one of several supported languages while Codility analyzes their code for correctness, performance, and other metrics.For companies and recruiters...

Kattis

Kattis is an online platform and judge system created in 2008 by KTH Royal Institute of Technology in Stockholm for hosting programming competitions and education. It allows users to practice solving coding challenges, participate in contests to test their skills, and organize competitions for groups or classes.The platform provides an...

KillerCoder

KillerCoder is a cross-platform code editor and integrated development environment (IDE) designed specifically for web development. It comes packed with features to improve productivity when writing HTML, CSS, JavaScript, PHP, Python, and other web technologies.Some of the standout features of KillerCoder include:Syntax highlighting for all major web languages...

CheckIO

CheckIO is an online platform designed for learning and practicing programming through solving code challenges. It was launched in 2015 by the software company SendPulse and has grown into a community of over 100,000 users.CheckIO provides a collection of bite-sized coding puzzles across multiple difficulty levels that allow users to improve...

Spoj

Spoj (Sphere Online Judge) is an online platform for hosting programming competitions and allowing programmers to practice solving coding problems. It has a vast repository of over 20,000 programming problems spanning multiple domains like algorithms, math, combinatorics, game theory, strings, data structures etc.Programmers can choose problems as per their expertise...

GetBadges

GetBadges is a software platform used for creating, issuing, and managing digital badges. It provides an easy way for organizations and individuals to recognize achievements, skills, competencies and credentials through digital badges.Some key features of GetBadges include:Intuitive badge designer to create custom badge templatesIssuing badges manually or via...

Sphere Contest

Sphere Contest is an open source web application designed specifically for running contests and competitions online. It provides a complete platform for contest organizers to set up contests, accept submissions from participants in various formats like text, images, audio, video, etc., have a panel of judges score the entries based...

The AI Games

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Codela

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Interviewme.io

Interviewme.io is an online platform that provides mock interviews to help users practice and prepare for job interviews. The platform connects users with experienced interviewers who can ask common interview questions and provide feedback to the interviewee after the session.Some key features of Interviewme.io include:A large...