Complete Computer Science · Interactive · Interview-Ready
Understand it. Don't memorize it.
The interactive CS platform built for engineers who want to understand, not just memorize. Live canvas visualizations, clean code, and 290+ interview problems — from first principles to interview-ready.
7Tracks
165+Pages
290+Questions
137Programs
The Map
One connected body of knowledge
Every track feeds the same goal. Click any node to jump in.
Used by engineers preparing for
Google
Amazon
Microsoft
Flipkart
Razorpay
Swiggy
+ more
Explore Topics
7 learning tracks
Start Here
Learn by Role
FrontendBackendDataCloud
Pick the job you are working toward ◆ eighteen careers, each the real roadmap for the field, with your progress carried across all of them.
The Web Platform
Frontend
HTMLCSSFlexboxGrid
What the browser actually runs ◆ semantic structure, forms, the cascade, layout with Flexbox and Grid, responsive design and theming.
Make It Mean Something
Data
StatisticsA/B TestsChartsParquet
Turning numbers into decisions ◆ statistics and significance, experiment design, visualisation, data preparation, warehouses and lakes.
Finding It First
QA & Testing
PyramidPlaywrightContractsLoad
Buying information, not certainty ◆ the testing pyramid, exploratory and regression testing, unit and UI automation, API contracts, load and security.
Behind The API
Backend
NodeRESTGraphQLTransactions
The service behind the interface ◆ the event loop and middleware, REST and OpenAPI, GraphQL and gRPC, ORMs and migrations, isolation levels, and testing.
Trustless Systems
Blockchain
ConsensusSolidityEVMdApps
A ledger nobody owns ◆ hash chains and Merkle proofs, consensus and gas, smart contracts and the EVM, tooling, dApps, and the security immutable code demands.
Apps On Devices
Mobile Development
KotlinSwiftComposeOffline
Building for a device you do not control ◆ platforms and lifecycle, declarative UI, architecture, offline networking, storage, release and monitoring.
Real-Time Systems
Game Development
VectorsShadersPhysicsNetcode
Sixteen milliseconds a frame ◆ game maths, engines and the loop, real-time graphics, collision and animation, gameplay feel, netcode and shipping.
Core Curriculum
Data Structures & Algorithms
ArraysTrees
GraphsDP
SortingBig-O
Live canvas animations for every data structure. Master the concepts interviewers actually test — from arrays to dynamic programming — with visual intuition baked in.
Languages
Programming Languages
PythonJavaScript
JavaC++
Learn how languages turn ideas into instructions. Python is live — 7 modules and 137 programs, OOP to async; JavaScript, Java, C++ and HTML/CSS are on the way.
Architecture
System Design
ScalingCachingQueuesAPIs
Load balancing, caching, microservices, and distributed systems — plus Django, Flask, and FastAPI framework guides for building production backends.
Store It
Databases
SQLPostgresRedisMongo
Relational foundations first, then the NoSQL and specialised stores built for other shapes of data ◆ 14 engines, from a full SQL reference to time-series and search.
Ship It
DevOps & Cloud
GitDockerK8sCI/CD
The whole ship-it toolchain ◆ Linux and Git through containers, orchestration and pipelines, out to AWS, GCP and Azure.
Below the Code
OS & Networks
ProcessesMemoryTCP/IPDNS
The systems layer every other track depends on ◆ how one machine runs your program and how millions talk to each other. All four pillars complete: OS, Networking, Security and Theory of Computation.
Deep Dive
AI / ML Explained
MLDeep Learning
NLPTransformersRL
Machine learning, deep learning, NLP, computer vision, and RL ◆ clear analogies, real math, no fluff. For engineers who want to truly understand modern AI.
Interview Prep
Interview Q&A Hub
FAANGStartup
DSASQLOOP
290+ curated questions across DSA, Python, OOP, SQL, and AI/ML ◆ tagged for FAANG and startups. Progress tracked in your browser.
How TechForge Works
01
Choose Your Path
Pick from 7 tracks ◆ DSA, Python, System Design, Databases, DevOps, AI/ML, or Interview Prep. Each is self-contained, so you start exactly where you need to.
02
Watch It Animate
Every algorithm and data structure comes with a live Canvas 2D visualization ◆ see exactly how it works, step by step, in real time.
03
Study the Code
Clean, optimized Python implementations with Big-O analysis, edge cases, and detailed inline comments. No magic, no hand-waving.
04
Practice & Track
Solve 290+ curated problems tagged for FAANG and startups. Check them off ◆ progress saves to your browser automatically.
Why TechForge
Vanilla JS
Zero Dependencies
All visualizations use the native Canvas 2D API ◆ no heavy libraries, no bloat. Fast, smooth animations on any device, even on mobile data.
FAANG + Startups
Company-Tagged Problems
Every practice problem is tagged PBC (Google, Amazon, Meta) or Startup (Swiggy, Razorpay, CRED) so you focus on what matters for your target company.
Privacy First
Local Progress Tracking
Mark problems as done and they stay checked. Progress lives in your browser's localStorage ◆ pick up exactly where you left off, on any visit.