Your AI-Powered
Engineering Mentor
Personalized roadmaps, interactive streaming lessons, and production-grade interview drills — tailored dynamically to your engineering level.
What do you want to master next?
Type any technology, role, or interview goal — our AI synthesizes a personalized, dependency-ordered path.
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Learn like a senior engineer
mentored you personally
Three effortless steps from curiosity to production-grade mastery.
1. Tell us your goal
Enter any technology, target role, or interview topic with your current experience level.
2. AI constructs your path
Our engine maps prerequisite trees, creates realistic time estimates, and organizes sequential modules.
3. Master & get certified
Stream real-time interactive lessons, drill down with mentor chat, ace quizzes, and earn verifiable certificates.
Everything required to go from
learning to top-tier offer
Engineered for developers who demand real depth, architecture trade-offs, and production reality.
AI Roadmaps
Structured learning paths for any tech topic, personalized to your level with dependency-aware ordering.
Streaming Lessons
7-section lessons generated in real-time, word by word — like a mentor explaining just for you.
Interactive Quizzes
Recall, application, and trade-off questions generated per topic to test real depth.
AI Mentor Chat
Ask anything about any topic. Explain mode or Interview mode — you choose the depth.
Interview Prep
Real interview questions per topic with expert sample answers. Practice before the real thing.
Completion Certificates
Earn verified certificates when you complete roadmaps and pass quizzes. Shareable on LinkedIn.
Four habits we quietly replace
What transforms for an engineer once CrackLab becomes part of the weekly routine.
9 Deep Engineering Specializations
Click any track to inspect real production topics, code samples, and learning breakdowns.
Ace every System Design interview.
From high-level architecture patterns to low-level design and code. Study real production HLD breakdowns, trade-off matrices, and FAANG-level interview questions.
208
total topics
HLD + LLD
full depth
AI-Powered
mentor chat
Distributed Caching & Invalidation Patterns
Rate Limiter: Token Bucket vs Leaky Bucket
Kafka Partitioning & Exactly-Once Delivery
Distributed Transactions: Saga vs 2PC
// Consistent Hashing Ring with Virtual Nodes
type HashRing struct {
vNodes int
ring []uint32
nodeMap map[uint32]string
rwLock sync.RWMutexClick to explore each curriculum directly
System Design
From high-level architecture patterns to low-level design and code. Study real production HLD breakdowns, trade-off matrices, and FAANG-level interview questions.
AI Engineering
Master real-world RAG architectures, semantic routing, vector database indexing, agentic loops, and model evaluation frameworks built for engineers shipping to production.
Gen AI
Demystify Transformer math, multi-head attention, rotary positional embeddings (RoPE), diffusion models, multimodal architectures, and preference tuning (DPO/RLHF).
AWS Cloud
Master multi-region VPC topologies, serverless event fabrics, DynamoDB single-table design, EKS cluster operations, and cost-effective scaling under high throughput.
Interview Prep
Targeted problem sets with full system architecture diagrams, edge-case breakdowns, back-of-the-envelope capacity estimations, and interactive mock interviews.
Databases
Understand B-Trees vs LSM-Trees, PostgreSQL MVCC internals, WAL logging, replication lags, distributed transactions, and index tuning strategies.
DevOps & K8s
Learn zero-downtime rolling updates, service mesh traffic shaping, Docker container hardening, Prometheus alerting metrics, and GitHub Actions CI/CD pipelines.
Spring Boot
Dive deep into Spring bean lifecycles, non-blocking reactive streams with WebFlux, transaction isolation management, and resilient microservice architectures.
Core Java
Deep dive into the Java Memory Model (JMM), ZGC and G1 garbage collection tuning, Virtual Threads (Project Loom), concurrent data structures, and modern Java features.
The library keeps growing
New production-grade tracks land here regularly — automatically unlocked for Pro & Power members at zero additional fee.
Data Structures & Algorithms
Arrays to complex graphs with interview-style memory breakdowns, visual trees, and optimal asymptotic complexity proofs.
Go for Backend Systems
Goroutines, channels, memory models, GC tuning, and high-performance microservice patterns for low-latency systems.
Rust Fundamentals & Systems
Borrow checker mastery, zero-cost abstractions, lifetimes, memory safety, and systems programming from first principles.
Turn any YouTube video into an interactive course
Paste any tutorial URL and our AI extracts key concepts, synthesizes 7-section structured chapters, and builds comprehension drills.
Experience CrackLab before you join
Test-drive our core features right now. Click through roadmaps, live streaming lessons, interactive quizzes, and AI mentor conversations.
System Design Architecture Path
Target Level: Senior Engineer · 12 of 24 modules completed
Add up your current stack
What a dedicated engineer typically pays every single month across disconnected subscriptions:
Course platforms
Udemy, Coursera courses
$60
AI coding subscription
ChatGPT Plus or Claude Pro
$20
Interview prep platform
LeetCode Premium, AlgoExpert
$35
Architecture mentor
MentorCruise, ADPList sessions
$90
Video training library
Pluralsight, LinkedIn Learning
$30
System design course
Grokking the System Design
$40
Separately, that's roughly
$275/mo
On CrackLab, it's just
All 9 engineering tracks, AI mentor chat, interactive drills & verified certs
Simple, transparent investment
Start completely free. Upgrade when you need advanced models, unbounded depth, and full interview simulators.
Free Starter
- 5 roadmaps per day
- 10 streaming lessons per day
- 10 AI mentor chats per day
- Recall & scenario quizzes
- Progress tracking & streak rewards
- Completion certificates
Pro Engineer
- 20 roadmaps per day
- 50 streaming lessons per day
- 50 AI mentor chats per day
- Advanced reasoning models (Claude 3.5)
- All 9 Tracks (System Design, AI, AWS, DevOps)
- 50 deep-dive interview sessions/day
Power Architect
- Everything included in Pro
- Full access to all 9 specialized hubs
- 100 roadmaps & 100 lessons per day
- 100 AI mentor chats per day
- PDF upload & RAG lesson synthesis
- Interactive visual architecture diagrams
Need team or enterprise licensing? Contact our solutions team.
Frequently asked questions
Yes — the free plan gives you access to roadmaps, lessons, and quizzes every day with generous daily limits. No credit card required.
CrackLab is personalized to your level and topic. No fixed curriculum — AI builds your exact learning path and generates lessons on demand for any subtopic you choose.
Absolutely. Every topic includes real interview questions with sample answers, plus an AI mentor you can practice with in interview mode that challenges your reasoning.
Certificates show completion with quiz scores and total time invested. They carry a unique verification URL you can share on LinkedIn, your portfolio, or résumé.
Any tech topic — System Design, AI Engineering, React, Python, DevOps, ML, Kubernetes, and hundreds more. If you can type it, we can build a roadmap for it.
Ready to accelerate your
engineering career?
Join thousands of engineers learning with adaptive roadmaps and senior AI guidance. Free forever to start.
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