AI-powered technical interview preparation for DSA, System Design (HLD), and Low-Level Design (LLD).
Practice 400+ curated problems, explore 50+ company sheets, and test architectures with real-time AI evaluation.
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SDE Forge brings your entire prep workflow together — no more juggling between spreadsheets, Notion docs, and random bookmarks.
Curate and track 450+ DSA problems across Grind 75, Striver 450, NeetCode 150, and 50+ company-specific sheets (Google, Microsoft, Meta, eBay, Amazon, Atlassian & more) with latest interview questions and LeetCode sync.
Structured 30-day and 60-day roadmaps customized for SDE-1, SDE-2, and Senior roles at top-tier tech companies.
Track your prep consistency across 15+ topic categories with daily heatmap streaks, completion rates, and solve metrics.
Master object-oriented design and design patterns across 4 structured phases with AI scoring rubrics and code reviews.
Solve large-scale architectural scenarios (100k+ QPS, 99.99% SLA) with sub-second AI feedback on caching and partitioning.
50+ hands-on lessons with runnable code, live architectural simulations, and zero dry 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.
Select from 400+ DSA problems, 4-stage LLD/HLD workspaces, or customized 30-day prep roadmaps.
Log your solutions, track 15+ topic heatmaps, and receive sub-second AI diagnostic feedback in real time.
Prepare for SDE-1, SDE-2, and Senior roles at top tech companies with 100% confidence and zero guesswork.
Built by engineers who've been through the grind. We know exactly what you need to crack top-tier companies.
Engineered specifically for tech interviews. Cover essential preparation pillars: DSA problem sheets, system design (HLD), and low-level design (LLD).
0 paywalls, 0 hidden subscriptions. 100% of lessons, simulations, and real-time AI interview practice are free to use.
Receive instant multi-point evaluations on your LLD and HLD designs without waiting 48+ hours for peer mock reviews.
Measure your readiness across 15+ core topics with streak counters, solve-rate heatmaps, and target milestones.
Seamlessly link problem sheets, prep roadmaps, and system design workspaces into one dashboard, eliminating 100% of context switching.
10+ new interview problems, updated company-specific question sets, and architectural scenarios added every month.
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 & $0 / mo Free | Hello Interview$47 / mo | AlgoMaster$29 / mo | LeetCode$35 / mo Premium |
|---|---|---|---|---|
| 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 ($0 / mo, No Paywall) | 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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