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donnemartin/system-design-primer

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cached 2026-03-29T21:55:30.499Z
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donnemartin/system-design-primer

`donnemartin/system-design-primer` is a highly starred, very actively maintained educational repository for learning large-scale system design and preparing for system design interviews. It is organized as a curated resource guide with sample solutions, diagrams, and Anki flashcards, and it includes multiple translated README files plus EPUB generation support.

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Stars340,594
Forks55,097
Default branchmaster
Last pushed2026-03-20T01:52:19Z
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Prefer upstream unless you specifically want a frozen, unmodified snapshot. This fork adds no visible capabilities and is materially behind on maintenance, so adopters should expect more outdated links and less current content.

Choose this fork if your priority is a Chinese-localized study resource. Choose upstream if you want the freshest, actively maintained version with the latest fixes and links.

Choose this fork if Russian language access matters more than staying perfectly current with upstream. If you want the freshest version of the primer, upstream is the safer default.

Prefer upstream unless you specifically need this 2017 snapshot; the fork adds no features and is materially behind current maintenance.

Choose upstream unless you specifically want a frozen copy; this fork shows no meaningful added capability and is materially behind ongoing maintenance.

Prefer upstream unless you specifically want a frozen, legacy copy; this fork adds nothing and is far behind current upstream maintenance.