# donnemartin/system-design-primer

Learn how to design large-scale systems. Prep for the system design interview.  Includes Anki flashcards.

Repository: https://github.com/donnemartin/system-design-primer
Canonical: https://ross.abutalabs.com/products/system-design-primer
Language: Python
License: NOASSERTION
License Family: other
Topics: programming, development, design, design-system, system, design-patterns, web, web-application, webapp, python, interview, interview-questions, interview-practice
Last push: 2026-03-20T01:52:19+00:00

## Health v2 (maintenance only)
Score: 65/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 73, release rhythm 35, longevity 100
- inputs: {"age_days": 3475, "days_push": 167, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 366242, forks 58073 (observed 2026-08-28T04:12:28.788789+00:00)

## What it is
An open-source study guide for learning how to design large-scale systems, with organized resources, sample interview questions with solutions, diagrams, and Anki flashcards. It is primarily educational content rather than software.

## Use cases
- prepare for a system design interview
- learn how to design scalable distributed systems
- practice common system design interview questions with sample solutions
- study object-oriented design interview questions
- review system design fundamentals like caching, sharding, and load balancing
- use flashcards to memorize system design concepts

## When to choose
- you are preparing for technical interviews that include system design rounds
- you want a free, community-maintained overview of scalable system design topics
- you prefer structured study guides with exercises and flashcards

## When to avoid
- you need runnable software or a library to include in a project
- you want deep, production-grade architecture documentation for a specific system
- you need an interactive course with mentorship or graded feedback

## Facets
- artifact type: learning-resource
- maturity: stable
- function: documentation, developer-tools
- domain: developer-tools, tutorials, web-development, education
- platform: cross-platform
- tags: system-design, interview-prep, scalability, anki-flashcards, study-guide, web-server

## Member repositories
- donnemartin/system-design-primer (main) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:28.788789+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:10:19.136014+00:00, confidence not recorded.
  - readme: https://github.com/donnemartin/system-design-primer (fetched 2026-08-28T04:12:28.788789+00:00, sha a8f7e14a279d)
- Data as of 2026-08-30T08:39:29.467469+00:00.