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There are expected to be more than 100 open source demos written by Qt. They have been continuously updated and improved. The code is concise and easy to understand and the comments are detailed. Each is an independent project and is very suitable for beginners. The code can be spread and used freely. Rewards and donations are refused. Comments are welcome! Public account: Qt Practical/Qt Introduction and Advanced/Qt Tutorial

system-design-primer

Collect system-design concepts, examples and study material.

Popularity

Repository stars6,948376,550Highest

7-day net stars——

Fork1,71859,129Highest

30-day trendInsufficient historyInsufficient history

Maintenance

Last push2026-05-162026-09-15

Maintenance notesNot verifiedUnknown

Repository created2019-10-042017-02-26

License & use

LicenseLicense not declaredLicense not declared

License sourceLicense source—

PricingPricing not verifiedPricing not verified

Basics

Browse by purposeLearning & resourcesReference material · Tutorials

TypeGuides & collectionsGuides & collections

SubcategoryAdvanced guidesAdvanced guides

PlatformNot verifiedNot verified

Cost detailsCheck current official software, hosting, model and infrastructure pricing.Check hosted-service, model and infrastructure costs for the option you choose.

Pricing source——

First collected2026-11-032026-11-02

MetricRepository stars, not unique users or individual-skill installsRepository Stars, not unique users

LanguageC++Python

About this projectThere are expected to be more than 100 open source demos written by Qt. They have been continuously updated and improved. The code is concise and easy to understand and the comments are detailed. Each is an independent project and is very suitable for beginners. The code can be spread and used freely. Rewards and donations are refused. Comments are welcome! Public account: Qt Practical/Qt Introduction and Advanced/Qt TutorialCollect system-design concepts, examples and study material.

Repositoryfeiyangqingyun / QWidgetDemodonnemartin / system-design-primer

Measured at2026-11-03 08:31 UTC2026-11-02 18:45 UTC

License tiers are derived from metadata. Check obligations for your use; unknown does not mean prohibited. Ranked by repository stars, one position per repository. Stars and forks are not user counts.