#### Peer Low-Level Design Library

Browse low-level design solutions submitted by the community. Share your own code designs and learn from others.

##### Design an LLD of Splitwise
- **Level:** Staff  
- **Language:** Pseudocode  
- **Submissions:** 7  
- **Likes:** 27

##### Design a Linux Find Command API
- **Level:** Senior  
- **Language:** Pseudocode  
- **Submissions:** 9  
- **Likes:** 9

##### Design a Rate Limiter
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 2  
- **Likes:** 6

##### Design a Pizza Billing System
- **Level:** Junior  
- **Language:** Python  
- **Submissions:** 13  
- **Likes:** 6

##### Design a key-value store
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 1  
- **Likes:** 6

##### Design a movie ticket booking system
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 1  
- **Likes:** 3

##### Design a Postpaid Mobile Subscription Management System
- **Level:** Principal  
- **Language:** Pseudocode  
- **Submissions:** 3  
- **Likes:** 2

##### Design a file system for write-once media
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 2  
- **Likes:** 2

##### Design a thread safe LRU cache
- **Level:** Mid-level  
- **Language:** C++  
- **Submissions:** 5  
- **Likes:** 2

##### Design a Parking Lot Management System
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 5  
- **Likes:** 2

##### Design a Publisher-Subscriber Message queue
- **Level:** Senior  
- **Language:** C++  
- **Submissions:** 7  
- **Likes:** 1

##### Design a Distributed Cache System
- **Level:** Senior  
- **Language:** C++  
- **Submissions:** 13  
- **Likes:** 1

##### Design a Rate Limiter
- **Level:** Senior  
- **Language:** Java  
- **Submissions:** 6  
- **Likes:** 1

##### Design Tic-Tac-Toe
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 5  
- **Likes:** 1

##### Design a Multi-Channel Notification Platform
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 1  
- **Likes:** 1

##### Design a Notification System
- **Level:** Mid-level  
- **Language:** Pseudocode  
- **Submissions:** 3  
- **Likes:** 1

##### Design Uber
- **Level:** Mid-level  
- **Language:** Java  
- **Submissions:** 5  
- **Likes:** 1

##### Design an Elevator Control System
- **Level:** Staff  
- **Language:** C++  
- **Submissions:** 1  
- **Likes:** 1

##### Design a Meeting Room Booking System
- **Level:** Mid-level  
- **Language:** C++  
- **Submissions:** 3  
- **Likes:** 0

##### Design a Pizza Billing System
- **Level:** Mid-level  
- **Language:** C++  
- **Submissions:** 5  
- **Likes:** 0