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Top 23 Algorithm Open-Source Projects
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A complete study plan to become a software engineer, focusing on data structures, algorithms, and coding interviews. Explore the repository
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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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Name: public-apis Owner: public-apis Stars: 144910 Repository: https://github.com/public-apis/public-apis Description: A collective list of free APIs Name: system-design-primer Owner: donnemartin Stars: 139818 Repository: https://github.com/donnemartin/system-design-primer Description: Learn how to design large-scale systems. --snip-- Name: Python Owner: TheAlgorithms Stars: 113616 Repository: https://github.com/TheAlgorithms/Python Description: All Algorithms implemented in Python
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javascript-algorithms
📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings
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tech-interview-handbook
💯 Curated coding interview preparation materials for busy software engineers
Project mention: 🔥 Hidden Gems on GitHub That Every Developer (IT/Non-IT) Needs to Explore | dev.to | 2025-05-30🧑🏫 12. Tech Interview Handbook 📍 https://github.com/yangshun/tech-interview-handbook 🧠 Covers everything from resume tips to behavioral rounds and coding questions. ✅ Best For: FAANG aspirants, job switchers
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fucking-algorithm
刷算法全靠套路，认准 labuladong 就够了！English version supported! Crack LeetCode, not only how, but also why.
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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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Sevalla
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leetcode
LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。) (by azl397985856)
1️⃣3️⃣ LeetCode Solutions 🏆 📌 https://github.com/azl397985856/leetcode A collection of LeetCode solutions to prepare for FAANG interviews.
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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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JavaScript
Algorithms and Data Structures implemented in JavaScript for beginners, following best practices. (by TheAlgorithms)
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C
Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes.
GuiarStr was built as a modern, lightweight alternative to older string manipulation libraries like sds. It focuses on simplicity, clean API, and zero dependencies while providing commonly needed features like trim, split, replace, tolower, and toupper.
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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 -
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Go
Algorithms and Data Structures implemented in Go for beginners, following best practices. (by TheAlgorithms)
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Project mention: A general Fortran code for solutions of problems in space mechanics [pdf] | news.ycombinator.com | 2025-08-19
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SaaSHub
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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).
Algorithms discussion
Algorithms related posts
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Algorithms for Modern Hardware
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Algorithms for Modern Hardware
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A general Fortran code for solutions of problems in space mechanics [pdf]
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Vowels Count Algorithm
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Ask HN: Is there a language that is simple and empowers developer productivity?
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People Keep Inventing Prolly Trees
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Algorithms for Modern Hardware
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A note from our sponsor - SaaSHub
www.saashub.com | 1 Sep 2025
Index
What are some of the best open-source Algorithm projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | coding-interview-university | 325,310 |
| 2 | TheAlgorithms | 204,955 |
| 3 | javascript-algorithms | 193,143 |
| 4 | JavaGuide | 151,478 |
| 5 | tech-interview-handbook | 129,337 |
| 6 | fucking-algorithm | 128,986 |
| 7 | hello-algo | 115,957 |
| 8 | cs-video-courses | 69,659 |
| 9 | interviews | 64,394 |
| 10 | Java | 63,137 |
| 11 | leetcode | 55,589 |
| 12 | hello-algorithm | 35,657 |
| 13 | LeetCode-Go | 33,658 |
| 14 | JavaScript | 33,563 |
| 15 | swift-algorithm-club | 29,096 |
| 16 | algorithms | 24,723 |
| 17 | Rust | 24,586 |
| 18 | OI-wiki | 24,012 |
| 19 | C | 20,602 |
| 20 | DSA-Bootcamp-Java | 20,217 |
| 21 | Algorithms | 18,179 |
| 22 | Go | 17,275 |
| 23 | SciPy | 13,955 |
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