Pre-launch Offer
Pre-launch Offer
Pre-launch Offer
Crack Your Next
Tech Interview
Crack Your Next
Tech Interview
Crack Your Next
Tech Interview
Master Low Level Design with production-grade solutions to the most frequently asked interview questions. Learn design patterns, SOLID principles, and best practices used by top engineers
Master Low Level Design with production-grade solutions to the most frequently asked interview questions. Learn design patterns, SOLID principles, and best practices used by top engineers
Master Low Level Design with production-grade solutions to the most frequently asked interview questions. Learn design patterns, SOLID principles, and best practices used by top engineers
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Lines of Code
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Lines of Code
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Lines of Code
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Design Patterns
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Design Patterns
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Design Patterns
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LLD Modules
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LLD Modules
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LLD Modules
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Foundational Guides
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Foundational Guides
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Foundational Guides
Who is it for?
Who is it for?
Who is it for?
Failing Tech Interviews?
You're Not Alone
Failing Tech Interviews?
You're Not Alone
The #1 reason engineers get rejected at top companies
Your LeetCode skills are sharp
Your LeetCode skills are sharp
Your LeetCode skills are sharp
But LLD rounds feel like a different beast
But LLD rounds feel like a different beast
But LLD rounds feel like a different beast
You can code the solution
You can code the solution
You can code the solution
But struggle to explain design choices
But struggle to explain design choices
But struggle to explain design choices
You know some patterns
You know some patterns
You know some patterns
But don't know when to apply them
But don't know when to apply them
But don't know when to apply them
You write working code
You write working code
You write working code
But find it hard to come up with entites, service layer and the data flow
But find it hard to come up with entites, service layer and the data flow
But find it hard to come up with entites, service layer and the data flow
Limited Early Access
Limited Early Access
Limited Early Access
Join the Waitlist and
Save 60% at Launch
Be among the first 250 founding members and get exclusive benefits.
Official Launch: January 1st, 2026
Founding Member Benefits
60% Launch Discount
Get exclusive founding member pricing
60% Launch Discount
Get exclusive founding member pricing
60% Launch Discount
Get exclusive founding member pricing
Shape the Product
Suggest features, request new modules, and influence our roadmap
Shape the Product
Suggest features, request new modules, and influence our roadmap
Shape the Product
Suggest features, request new modules, and influence our roadmap
Early Access
Get instant access on launch day before general availability.
Early Access
Get instant access on launch day before general availability.
Early Access
Get instant access on launch day before general availability.
Modules
Modules
Modules
10+ Production-Ready
Low-Level Design Modules
Each module contains complete implementation with documentation, design patterns, and best practices.
Most Asked
Cache System Design
Build a production-ready caching system with LRU, LFU policies
Multiple eviction policies
Thread-safe implementation
Configurable cache size
~ 800+ Lines of Code
Most Asked
Cache System Design
Build a production-ready caching system with LRU, LFU policies
Multiple eviction policies
Thread-safe implementation
Configurable cache size
~ 800+ Lines of Code
Most Asked
Cache System Design
Build a production-ready caching system with LRU, LFU policies
Multiple eviction policies
Thread-safe implementation
Configurable cache size
~ 800+ Lines of Code
Classic
Parking Lot System
Design a scalable parking lot with multiple vehicle types
Pricing strategy
Multi-level parking
Spot allocation
~ 1500+ Lines of Code
Classic
Parking Lot System
Design a scalable parking lot with multiple vehicle types
Pricing strategy
Multi-level parking
Spot allocation
~ 1500+ Lines of Code
Classic
Parking Lot System
Design a scalable parking lot with multiple vehicle types
Pricing strategy
Multi-level parking
Spot allocation
~ 1500+ Lines of Code
Advance
Project Manager (Trello-like)
Complete project management system with boards, lists, and cards
Board management
Observer pattern for updates
Command pattern for actions
~ 900+ Lines of Code
Advance
Project Manager (Trello-like)
Complete project management system with boards, lists, and cards
Board management
Observer pattern for updates
Command pattern for actions
~ 900+ Lines of Code
Advance
Project Manager (Trello-like)
Complete project management system with boards, lists, and cards
Board management
Observer pattern for updates
Command pattern for actions
~ 900+ Lines of Code
Most Asked
Splitwise Expense Sharing
Expense management system with group creation, expense addition, split calculation, and debt simplification.
Multiple split types (equal, percentage, exact)
Group and individual balances
Transaction history
~ 500+ Lines of Code
Most Asked
Splitwise Expense Sharing
Expense management system with group creation, expense addition, split calculation, and debt simplification.
Multiple split types (equal, percentage, exact)
Group and individual balances
Transaction history
~ 500+ Lines of Code
Most Asked
Splitwise Expense Sharing
Expense management system with group creation, expense addition, split calculation, and debt simplification.
Multiple split types (equal, percentage, exact)
Group and individual balances
Transaction history
~ 500+ Lines of Code
Classic
Inventory Management
Complete inventory tracking with products, warehouses, orders, and stock management.
Factory pattern for product creation
Strategy pattern for inventory allocation
Extensible Implementation
~ 1000+ Lines of Code
Classic
Inventory Management
Complete inventory tracking with products, warehouses, orders, and stock management.
Factory pattern for product creation
Strategy pattern for inventory allocation
Extensible Implementation
~ 1000+ Lines of Code
Classic
Inventory Management
Complete inventory tracking with products, warehouses, orders, and stock management.
Factory pattern for product creation
Strategy pattern for inventory allocation
Extensible Implementation
~ 1000+ Lines of Code
Advance
Distributed Message Queue
A scalable queue system with producers, consumers, topics, and message delivery.
Pub/Sub implementation
Observer Pattern Implementation
Multiple consumer groups
~ 1000+ Lines of Code
Advance
Distributed Message Queue
A scalable queue system with producers, consumers, topics, and message delivery.
Pub/Sub implementation
Observer Pattern Implementation
Multiple consumer groups
~ 1000+ Lines of Code
Advance
Distributed Message Queue
A scalable queue system with producers, consumers, topics, and message delivery.
Pub/Sub implementation
Observer Pattern Implementation
Multiple consumer groups
~ 1000+ Lines of Code
Classic
Cab Booking System
Rider-driver matching system with location tracking, fare calculation, and driver availability.
Driver matching algorithms
Surge pricing implementation
Ride history
~ 2000+ Lines of Code
Classic
Cab Booking System
Rider-driver matching system with location tracking, fare calculation, and driver availability.
Driver matching algorithms
Surge pricing implementation
Ride history
~ 2000+ Lines of Code
Classic
Cab Booking System
Rider-driver matching system with location tracking, fare calculation, and driver availability.
Driver matching algorithms
Surge pricing implementation
Ride history
~ 2000+ Lines of Code
Why Choose Our Modules?
Why Choose Our Modules?
Why Choose Our Modules?
Production-ready code that interviewers love to see
Production-ready code that interviewers love to see
Production-ready code that interviewers love to see
Production-Grade Code
Industry-standard implementations with proper error handling and edge cases
Production-Grade Code
Industry-standard implementations with proper error handling and edge cases
Production-Grade Code
Industry-standard implementations with proper error handling and edge cases
SOLID Principles
Every solution follows SOLID principles ensuring maintainable and scalable code
SOLID Principles
Every solution follows SOLID principles ensuring maintainable and scalable code
SOLID Principles
Every solution follows SOLID principles ensuring maintainable and scalable code
Design Patterns
Demonstrates patterns like Factory, Strategy, Observer, and more
Design Patterns
Demonstrates patterns like Factory, Strategy, Observer, and more
Design Patterns
Demonstrates patterns like Factory, Strategy, Observer, and more
Comprehensive Documentation
Detailed comments and documentation explaining design decisions
Comprehensive Documentation
Detailed comments and documentation explaining design decisions
Comprehensive Documentation
Detailed comments and documentation explaining design decisions
Best Coding Practices
Follows PEP 8, proper naming conventions, and code organization
Best Coding Practices
Follows PEP 8, proper naming conventions, and code organization
Best Coding Practices
Follows PEP 8, proper naming conventions, and code organization
Lifetime Updates
Get all future module additions and improvements at no extra cost
Lifetime Updates
Get all future module additions and improvements at no extra cost
Lifetime Updates
Get all future module additions and improvements at no extra cost
Features
Features
Features
Key Features That Make Our
LLD Solutions Exceptional
Key Features That Make Our
LLD Solutions Exceptional
Crafted with attention to detail and focused on making you stand out in technical interviews.
Production-Grade Code Quality
Production-Grade Code Quality
Production-Grade Code Quality
Our solutions follow the same code quality standards used at top tech companies. Write code that impresses even the most experienced interviewers.
Our solutions follow the same code quality standards used at top tech companies. Write code that impresses even the most experienced interviewers.
Clean Code Architecture
Proper separation of concerns with well-defined layers and responsibilities.
Performance Optimized
Efficient implementations with proper time and space complexity analysis.
Error Handling
Robust error handling with custom exceptions and graceful recovery.
Industry-Standard Design Patterns
Industry-Standard Design Patterns
Industry-Standard Design Patterns
Learn and implement the most relevant design patterns that are frequently used and asked about in technical interviews.
Learn and implement the most relevant design patterns that are frequently used and asked about in technical interviews.
Factory & Builder Patterns
Create objects with clean, flexible interfaces while hiding implementation details.
Strategy & Observer Patterns
Implement flexible behaviors and reactive systems with clean abstractions.
SOLID Principles
Apply Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion principles.
Extensible & Adaptable Solutions
Extensible & Adaptable Solutions
Extensible & Adaptable Solutions
Our implementations are designed to be expanded and customized, giving you the flexibility to adapt them to different interview requirements.
Modular Architecture
Components are designed to be easily swappable and reusable across different projects.
Multiple Implementation Options
Alternative approaches and implementations for different constraints and requirements.
Configurable Features
Easily enable, disable, or customize features to match specific interview requirements.
Our Process
Our Process
Our Process
Our LLD Framework
Our LLD Framework
Our LLD Framework
Every design follows a proven structure to ensure clarity, reusability, and interview impact.
Every design follows a proven structure to ensure clarity, reusability, and interview impact.
Every design follows a proven structure to ensure clarity, reusability, and interview impact.
Understand the Real Requirement
Break the problem into exact features the interviewer expects you to cover.
Understand the Real Requirement
Break the problem into exact features the interviewer expects you to cover.
Understand the Real Requirement
Break the problem into exact features the interviewer expects you to cover.
Define Core Entities & Relationships
Identify actors, responsibilities and entity flow before touching any code or diagram.
Define Core Entities & Relationships
Identify actors, responsibilities and entity flow before touching any code or diagram.
Define Core Entities & Relationships
Identify actors, responsibilities and entity flow before touching any code or diagram.
Design Like an Engineer, Not a Student
Service layer separation, design patterns, APIs, class interactions and tradeoffs explained.
Design Like an Engineer, Not a Student
Service layer separation, design patterns, APIs, class interactions and tradeoffs explained.
Design Like an Engineer, Not a Student
Service layer separation, design patterns, APIs, class interactions and tradeoffs explained.
Ready-to-Reuse Templates
So well structured that you can adapt the logic to ANY question not just memorize one solution.
Ready-to-Reuse Templates
So well structured that you can adapt the logic to ANY question not just memorize one solution.
Ready-to-Reuse Templates
So well structured that you can adapt the logic to ANY question not just memorize one solution.
15+ Design Patterns Covered
15+ Design Patterns Covered
15+ Design Patterns Covered
Know When to Use What
Practical examples and real-world use cases for every pattern
Why Working Professionals Choose Our Solutions
Everything you need to crack technical interviews and advance your career.
Production-Ready Code
All solutions follow industry-standard coding conventions, proper error handling, and optimized algorithms that would pass any code review.
Clean and readable
Proper error handling mechanisms
Time & space complexity optimized
Production-Ready Code
All solutions follow industry-standard coding conventions, proper error handling, and optimized algorithms that would pass any code review.
Clean and readable
Proper error handling mechanisms
Time & space complexity optimized
Production-Ready Code
All solutions follow industry-standard coding conventions, proper error handling, and optimized algorithms that would pass any code review.
Clean and readable
Proper error handling mechanisms
Time & space complexity optimized
Design Patterns & Principles
Each solution implements relevant design patterns and follows SOLID principles to demonstrate your architectural expertise.
Factory, Observer, Singleton patterns
SOLID, DRY and KISS principles
Modular, maintainable architecture
Design Patterns & Principles
Each solution implements relevant design patterns and follows SOLID principles to demonstrate your architectural expertise.
Factory, Observer, Singleton patterns
SOLID, DRY and KISS principles
Modular, maintainable architecture
Design Patterns & Principles
Each solution implements relevant design patterns and follows SOLID principles to demonstrate your architectural expertise.
Factory, Observer, Singleton patterns
SOLID, DRY and KISS principles
Modular, maintainable architecture
Interview-Ready Explanations
Detailed comments and documentation to help you understand the logic and confidently explain your approach to interviewers.
Approach & methodology explanations
Design decisions rationale
Common follow-up question answers
Interview-Ready Explanations
Detailed comments and documentation to help you understand the logic and confidently explain your approach to interviewers.
Approach & methodology explanations
Design decisions rationale
Common follow-up question answers
Interview-Ready Explanations
Detailed comments and documentation to help you understand the logic and confidently explain your approach to interviewers.
Approach & methodology explanations
Design decisions rationale
Common follow-up question answers
Time-Saving Preparation
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
Ready-to-use implementations
Focus on understanding, not coding
80% less preparation time
Time-Saving Preparation
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
Ready-to-use implementations
Focus on understanding, not coding
80% less preparation time
Time-Saving Preparation
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
Ready-to-use implementations
Focus on understanding, not coding
80% less preparation time
Stand Out From Competition
Most candidates struggle with system design. Our solutions will give you the competitive edge to impress interviewers.
MAANG-level design skills
Demonstrate deep technical expertise
Show you can build complex systems
Stand Out From Competition
Most candidates struggle with system design. Our solutions will give you the competitive edge to impress interviewers.
MAANG-level design skills
Demonstrate deep technical expertise
Show you can build complex systems
Stand Out From Competition
Most candidates struggle with system design. Our solutions will give you the competitive edge to impress interviewers.
MAANG-level design skills
Demonstrate deep technical expertise
Show you can build complex systems
ROI-Focused Investment
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
One-time payment, lifetime access
Potential for 2-3x salary increase
Compounding career benefits
ROI-Focused Investment
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
One-time payment, lifetime access
Potential for 2-3x salary increase
Compounding career benefits
ROI-Focused Investment
Don't waste weeks implementing these solutions yourself. Get interview-ready in hours, not days or weeks.
One-time payment, lifetime access
Potential for 2-3x salary increase
Compounding career benefits
Exclusive Bonus Content
Exclusive Bonus Content
Exclusive Bonus Content
But Wait, There's More...
5 foundational guides that transform you from nervous candidate to confident expert
How to Approach LLD Questions
Master the framework used by FAANG engineers to break down any LLD problem
How to Approach LLD Questions
Master the framework used by FAANG engineers to break down any LLD problem
How to Approach LLD Questions
Master the framework used by FAANG engineers to break down any LLD problem
Generic Template & Structure
The exact blueprint to structure your answers that impresses every interviewer
Generic Template & Structure
The exact blueprint to structure your answers that impresses every interviewer
Generic Template & Structure
The exact blueprint to structure your answers that impresses every interviewer
Interview Best Practices
Insider tips from hiring managers on what separates good from great candidates
Interview Best Practices
Insider tips from hiring managers on what separates good from great candidates
Interview Best Practices
Insider tips from hiring managers on what separates good from great candidates
Common Behavioral Questions
Pre-prepared STAR responses to the 20 most asked behavioral questions
Common Behavioral Questions
Pre-prepared STAR responses to the 20 most asked behavioral questions
Common Behavioral Questions
Pre-prepared STAR responses to the 20 most asked behavioral questions
Perfect Self Introduction
Craft a memorable 60-second pitch that sets the tone for your entire interview
Perfect Self Introduction
Craft a memorable 60-second pitch that sets the tone for your entire interview
Perfect Self Introduction
Craft a memorable 60-second pitch that sets the tone for your entire interview
Explore our FAQs
Find quick answers to commonly asked questions about Pixor. Have a question not listed?
What programming language are the solutions in?
Do I get lifetime acess?
How will I get access to the modules?
Can I use these solutions in my actual interviews?
Is this suitable for beginners?
Will I get updates if new solutions and resources are added?
Can I share these solutions with my friends and colleagues?
What programming language are the solutions in?
Do I get lifetime acess?
How will I get access to the modules?
Can I use these solutions in my actual interviews?
Is this suitable for beginners?
Will I get updates if new solutions and resources are added?
Can I share these solutions with my friends and colleagues?
What programming language are the solutions in?
Do I get lifetime acess?
How will I get access to the modules?
Can I use these solutions in my actual interviews?
Is this suitable for beginners?
Will I get updates if new solutions and resources are added?
Can I share these solutions with my friends and colleagues?
Limited Early Access
Limited Early Access
Limited Early Access
Join the Waitlist and
Save 60% at Launch
Be among the first 250 founding members and get exclusive benefits.
Official Launch: January 1st, 2026
Founding Member Benefits
60% Launch Discount
Get exclusive founding member pricing
60% Launch Discount
Get exclusive founding member pricing
Shape the Product
Suggest features, request new modules, and influence our roadmap
Shape the Product
Suggest features, request new modules, and influence our roadmap
Early Access
Get instant access on launch day before general availability.
Early Access
Get instant access on launch day before general availability.