⏱ 7 min read Google Drive serves 1+ billion users storing documents, spreadsheets, photos, and files with real-time collaboration, sharing, and cross-device sync. While Read article

⏱ 7 min read Airbnb connects 4+ million hosts with 150+ million guests across 220+ countries. Designing an accommodation platform tests your understanding of Read article

⏱ 7 min read GitHub hosts 200+ million repositories for 100+ million developers. Designing a code hosting platform tests your understanding of distributed version Read article

⏱ 7 min read Zoom handles 300+ million daily meeting participants with real-time audio and video. Designing a video conferencing system tests your understanding Read article

⏱ 7 min read Pinterest is a visual discovery platform with 450+ million monthly active users who save, organize, and discover ideas through images Read article

⏱ 7 min read Tinder processes 2+ billion swipes per day across 190+ countries, matching users based on location, preferences, and recommendation algorithms. Designing Read article

⏱ 7 min read Dropbox syncs files across devices for 700+ million users, handling billions of file operations daily. Designing a file storage and Read article

⏱ 7 min read Amazon processes millions of orders daily across hundreds of millions of products. Designing an e-commerce platform tests your ability to Read article

⏱ 6 min read Spotify serves 600+ million users across 180+ markets, streaming over 100 million tracks with sub-second start times. Designing a music Read article

⏱ 7 min read Slack handles millions of concurrent users across hundreds of thousands of workspaces, delivering messages in real-time while supporting search, file Read article