# System Design Primer

> Learn to design large systems and pass the interview

Explains how to design large-scale systems, with worked interview questions, solutions and Anki flashcards.

- Source: https://github.com/donnemartin/system-design-primer
- License: NOASSERTION
- Built with: Python 98.0%, Shell 2.0%
- Stars: 375971
- Forks: 59035
- Contributors: 128
- Last commit: 2026-03-20
- Purpose: Interview prep
- Type: Guide / course
- For: Personal

## Worth score: 53/100

How much DigGitHub recommends it, from activity, adoption, docs, license and security signals.

- Popularity: 25/25
- Momentum: 10/20
- Maintenance: 5/25
- Community: 13/15
- Readiness: 0/15

## Alternatives

- [Tech Interview Handbook](https://diggithub.com/yangshun/tech-interview-handbook.md): Coding interview prep for busy engineers
- [JavaScript Algorithms](https://diggithub.com/trekhleb/javascript-algorithms.md): Algorithms and data structures in JavaScript
- [Coding Interview University](https://diggithub.com/jwasham/coding-interview-university.md): Study plan for software engineering interviews

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Source page: https://diggithub.com/donnemartin/system-design-primer
Updated: 2026-10-29