AI-powered SDE interview prep for DSA, HLD & LLD.
Practice real-world problems, sharpen system design skills, and prepare for real software engineering interviews.
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Ready for today's grind? Let's forge your career together.
DSA Solved
LLD Solved
HLD Solved
Lessons Learned
Activity Heatmap
142 submissionsRecent Activity
LRU Cache
MediumDesign Parking Lot
ReviewDesign Twitter
ReviewCAP Theorem
LessonSliding Window
LessonMerge K Lists
HardSolving Streak
Daily QuestSync LC
LeetCode Daily
Two Sum
Progress Summary142 Total
SDE Forge brings your entire prep workflow together — no more juggling between spreadsheets, Notion docs, and random bookmarks.
Curate and track DSA sheets from Grind 75, Striver, NeetCode & more. Never lose your progress again across sessions.
Structured preparation plans tailored to your target role and company. Go from zero to offer-ready with clear milestones.
Visualize your prep with activity heatmaps, per-topic stats, and streak tracking. Stay consistent and data-driven.
Stage-gated Low Level Design workspace with AI-assisted reviews. Design confidently under real interview pressure.
Tackle system design with guided frameworks. Build, iterate, and get intelligent AI feedback on your architecture.
Learn DSA patterns, LLD principles, and HLD concepts through guided, hands-on exercises — not just passive reading.
Bridge the gap between theoretical knowledge and senior-level interviews. Study interactive architectural simulations, design pattern breakdowns, and top company interview guides—100% free.
Architect high-throughput distributed systems. Master caching, message brokers, replication, database sharding, and latency trade-offs with interactive architectural simulations.
Architect production-grade object-oriented systems with clean class diagrams, state machines, concurrency locks, and extensible design patterns.
Transform fragile spaghetti code into robust, testable software. Master Single Responsibility, Open-Closed, Liskov, Interface Segregation, and Dependency Inversion.
Master Gang of Four (GoF) creational, structural, and behavioral patterns with practical TypeScript & Java implementations and real-world trade-offs.
Build rock-solid mental models for OOP paradigms. Master encapsulation, abstraction, polymorphism, inheritance, and composition over inheritance.
Master the core algorithmic patterns tested at Google, Meta, and Amazon. Includes step-by-step visual breakdowns and optimal O(N) complexity proofs.
Three simple steps to go from scattered prep to a structured, confident job search.
Choose from DSA sheets, LLD/HLD practice, or interview prep plans. Everything is organized and ready to go.
Every problem solved, every design reviewed — your dashboard reflects your real growth in real time.
Arrive at interviews confident. With structured prep and consistent tracking, you'll be ready when it counts most.
Built by engineers who've been through the grind. We know exactly what you need to crack top-tier companies.
Not another generic productivity tool. Every feature is designed around the software engineer's actual job search journey.
The entire platform is free to use with no paywalls. All lessons, simulations, and real-time AI interview practice are completely accessible to help you level up faster.
Get intelligent review on your LLD and HLD designs without waiting for a mentor or scheduling mock interviews.
Know exactly where you stand. Topic heatmaps and streak tracking keep you honest about your actual preparation progress.
Your sheets, prep plans, and designs all talk to each other. One platform, zero context-switching overhead.
New problem sets, updated prep paths, and fresh features ship regularly. The platform grows as the ecosystem does.
Stop switching between disjointed spreadsheets, static articles, and expensive mock interviewers. SDE Forge unites interactive AI practice, custom tracking, and comprehensive prep under one roof.
| Platform Features | SDE ForgeAll-in-One & 100% Free | Hello InterviewPremium | AlgoMasterPremium | LeetCodePremium |
|---|---|---|---|---|
| Real-time AI Mock Interviewer for HLD & LLD | Included | Premium / AI-guided | AI-powered | Not included |
| Custom DSA Sheet Builder & Progress Sync | Included | Not included | DSA sheets + progress | Custom lists + progress |
| Company-Wise Preparation Sheets | Included | Company questions | Company-wise problems | Company questions |
| Interactive Architecture Simulations & Sandboxes | Included | Interactive practice / whiteboard | Interactive simulations | Not included |
| Unified Practice Dashboard & Daily Streak Tracker | Included | Practice/progress | Dashboard/progress | Progress / study plans |
| Interview Feel HLD & LLD Practice | Included | Not included | Not included | Not included |
| 100% Free Access (No Hidden Paywalls) | Included | Not included | Not included | Not included |
Common questions about SDE Forge, AI-powered system design mock interviews, custom DSA preparation, and curriculum access.
Join engineers who prepare smarter, not harder. Core features are free — with premium AI tools to supercharge your prep.
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