Overview — Interview Prep Buddy Documentation
Developer Learning & Interview Operating System
Master Every Layer of the Tech Stack
An all-in-one knowledge base combining deep technical notes, 16 core DSA patterns, company-specific tracks, interactive labs, algorithm visualizers, and 1,400+ interview Q&As.
Flagship Prep Hubs
16 Core DSA Patterns
Two Pointers, Sliding Window, Fast & Slow, Monotonic Stack, Backtracking, and DP blueprints.
Company-Specific Tracks
Tailored interview rounds, high-frequency questions, and system design prompts for Google, Amazon, Meta & more.
System Design & Case Studies
HLD, LLD, OOD, API Rate Limiter, TinyURL, News Feed, Distributed Cache, and Real-Time Chat architectures.
1,400+ Interview Questions
Curated questions by language (JS, React, Node, Python, SQL) and Behavioral STAR framework.
17 Algorithm Visualizers
Step-by-step animations for sorting, tree traversals, graph BFS/DFS, two pointers, and DP grids.
Interactive Practice Labs
Browser execution sandboxes with instant automated test grading for JavaScript, React, SQL, and Git.
Complete Documentation Hub
🌐 Frontend Engineering Core UI
⚙️ Backend, Cloud & DevOps Infrastructure
💾 Databases & Caching Storage
🏛️ Architecture, OOD & Networks Design
📊 Data Structures & Algorithms Algorithms
Interactive Workspaces & Tools
Code Playground
Interactive multi-tab sandbox for JavaScript, HTML, and CSS with live DOM preview.
MCQ Practice Hub
18 technical categories with timed rounds, instant feedback, and streak XP rewards.
Interactive Labs
Hands-on coding exercises for JS, React, SQL, HTML, CSS, Git, Python, and MongoDB.
Algorithm Visualizer
Step-through execution of sorting, searching, binary trees, graphs, and dynamic programming.
Company Explorer
Explore interview rounds, question trends, and design prompts for 14+ top tech firms.
Interview Question Bank
1,400+ categorized questions with difficulty filters and model answers.