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Top 18 Java Leetcode Projects
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hello-algo
《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version in translation
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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hello-algorithm
🌍 针对小白的算法训练 | 包括四部分：①.大厂面经 ②.力扣图解 ③.千本开源电子书 ④.百张技术思维导图（项目花了上百小时，希望可以点 star 支持，🌹感谢~）推荐免费ChatGPT使用网站
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DSA-Bootcamp-Java
This repository consists of the code samples, assignments, and notes for the Java data structures & algorithms + interview preparation bootcamp of WeMakeDevs.
Project mention: Open-Source Java DSA and Interview Prep Bootcamp by WeMakeDevs | news.ycombinator.com | 2024-10-03 -
Leetcode
Solutions to LeetCode problems; updated daily. Subscribe to my YouTube channel for more. (by fishercoder1534)
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Data-Structures-and-Algorithms
Important data structures and algorithms implemented in Java along with solutions to AlgoExpert problems and some Leetcode problems. (by alpha037)
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Sevalla
Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!
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LeetCode
Collection of LeetCode questions to ace the coding interview! - Buy me a coffee: https://buymeacoffee.com/devn__007 (by Devn913)
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LeetCodeTopInterviewQuestions
Leetcode Top Interview questions discussed in Leetcode. https://leetcode.com/explore/interview/card/top-interview-questions
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Data-Structures-and-Algorithms
Solutions to Arrays, Strings, Lists, Sorting, Stacks, Trees and General DS problems using JAVA. (by anishkumar127)
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DSA
My personal journey through DSA: problem-solving, explanations, and notes to strengthen my understanding (by SaptarshiSarkar12)
Project mention: Mastering Linear Search: Learn the Essentials of This Core Algorithm | dev.to | 2025-08-03⭐ Check out the data-structures-algorithms GitHub repo for more code examples.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Leetcode discussion
Java Leetcode related posts
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Hello-Algo: Interactive Visual Data Structures and Algorithms in 14 Languages
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20 Things You Should Consider When You Grow as a Developer
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Discussion Thread
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Grokking the coding interview vs structy vs neetcode
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Free Resources to Help You Ace Your Interviews
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Daily leetcode is a premium question
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How did I get my first job as a software engineer?
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Index
What are some of the best open-source Leetcode projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | hello-algo | 115,957 |
| 2 | interviews | 64,394 |
| 3 | hello-algorithm | 35,657 |
| 4 | DSA-Bootcamp-Java | 20,217 |
| 5 | Leetcode | 3,952 |
| 6 | FAANG | 1,849 |
| 7 | Data-Structures-and-Algorithms | 393 |
| 8 | geekific-youtube | 362 |
| 9 | java-solutions | 257 |
| 10 | LeetCode | 70 |
| 11 | LeetCode | 36 |
| 12 | LeetCodeTopInterviewQuestions | 26 |
| 13 | Data-Structures-and-Algorithms | 14 |
| 14 | LeetCode-in-Java | 12 |
| 15 | java-algorithms | 8 |
| 16 | problem-solving | 8 |
| 17 | LeetCode | 7 |
| 18 | DSA | 0 |
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