Best open-source interview prep guides & courses for personal use

Open-source guides and practice for technical interviews: coding problems, algorithms and system design.

Filters · 3 Personal, Interview prep, Guide / course

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AI & LLM tooling 5Agents & frameworks 1Coding assistants 1Agent skills 1MCP servers 3Developer tools 14API tools 1Self-hosted apps 0Automation 0Data & analytics 1Infra & DevOps 1Security & identity 0Communication 0Media & photos 0Design & creative 2Education & research 16Finance & money 1Career builder 16Interview prep 10

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10 projects

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J

JavaGuideSnailclimb/JavaGuide

Java and backend developer interview preparation guidePersonalMCP serversCareer builderInterview prepWebGuide / course★ 159kApache-2.0commit 5 days agolive demo

77worth

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H

Hello Algokrahets/hello-algo

Data structures and algorithms book with animationsPersonalInterview prepWebGuide / course★ 132kcommit 21 hours ago

77worth

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d

doocs LeetCodedoocs/leetcode

LeetCode solutions in many programming languagesPersonalInterview prepWebGuide / course★ 37kCC-BY-SA-4.0commit 14 hours ago

73worth

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J

JavaTheAlgorithms/Java

Open-source algorithms and data structures implemented in JavaPersonalEducation & researchInterview prepGuide / course★ 67kMITcommit 17 hours ago

69worth

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T

Tech Interview Handbookyangshun/tech-interview-handbook

Coding interview prep for busy engineersPersonalInterview prepWebGuide / course★ 143kMITcommit 3 months ago

68worth

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F

Front-end Interview Questionsh5bp/Front-end-Developer-Interview-Questions

Front-end interview questions on HTML, CSS and JavaScriptPersonalInterview prepGuide / course★ 61kMITcommit 8 months ago

61worth

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J

JavaScript Algorithmstrekhleb/javascript-algorithms

Algorithms and data structures in JavaScriptPersonalInterview prepGuide / course★ 197kMITcommit 3 months ago

59worth

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C

Coding Interview Universityjwasham/coding-interview-university

Study plan for software engineering interviewsPersonalInterview prepGuide / course★ 364kCC-BY-SA-4.0commit 2 years ago

54worth

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S

System Design Primerdonnemartin/system-design-primer

Learn to design large systems and pass the interviewPersonalInterview prepGuide / course★ 376kcommit 7 months ago

53worth

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S

System Design 101ByteByteGoHq/system-design-101

System design explained with simple visualsPersonalInterview prepGuide / course★ 91kcommit 2 years ago

49worth

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