About TechForge
Built for Developers,
by Developers.
TechForge is an interactive CS learning platform — complete computer science, from first principles to interview-ready.
Seven complete learning tracks, live canvas visualizations, and 290+ company-tagged interview problems.
Built to be the resource we wished existed.
Complete CS
Open Source
Interactive Viz
Runnable Code
Interview-Ready
6 Tracks
8
Tracks
Programming · DSA · Sys Design
Data&Cloud · OS&Net · AI/ML …
150+
Pages
Structured from
basics to advanced
290+
Problems
Company-tagged,
difficulty-rated
30+
Animations
Live Canvas 2D
visualizations
8
Tracks
Fundamentals
to interview.
Our Story
Where TechForge came from
The frustration that became a platform.
The problem we saw
Learning DSA felt like choosing between dry textbooks with no visuals,
and fragmented YouTube playlists that never connected theory to real interview practice.
Paid platforms locked the best content behind subscriptions. Free resources
were scattered. Nothing tied the concept → visualization → code → practice problem
loop together in one clean place.
What we built instead
A single destination that takes a developer from zero to interview-ready
across the full CS stack — programming, DSA, system design, data & cloud, OS & networks, and AI/ML.
Not another course. Not another subscription. A permanent, free reference you can
bookmark, return to, and actually learn from — with live canvas visualizations
and 290+ problems you can track in your browser.
Timeline
How we got here
From idea to full learning platform.
v0 — The Idea
Started as personal DSA notes
A collection of algorithm notes with hand-drawn diagrams, built while prepping for technical interviews. The frustration of finding no single good resource sparked the idea for something better.
v1 — Canvas Animations
First live visualizations shipped
Built the Canvas 2D animation engine from scratch — no libraries, no dependencies. Bubble sort, binary search, and tree traversals came first. The moment algorithms moved on screen, everything clicked.
v2 — Full Curriculum
Python, Backend, SQL & AI/ML added
Expanded from pure DSA into a complete CS learning path. Django, Flask, FastAPI guides. Full SQL reference plus MongoDB. Machine learning, deep learning, NLP, CV, and reinforcement learning.
v3 — Interview Prep
290+ curated questions with company tags
Added the Interview Q&A section with 290+ problems tagged for FAANG (Google, Amazon, Meta) and Indian startups (Swiggy, Razorpay, Zepto). Local progress tracking via localStorage.
v4 — Now
Polished, deployed, and growing
Complete redesign with the Forge design system — consistent tokens, better typography, and improved mobile experience. Deployed on Vercel with a focus on speed, accessibility, and zero tracking.
Philosophy
How we think about learning
Three principles that shape every page on TechForge.
01
See it first
Understanding comes from seeing, not memorizing. Every algorithm on TechForge has a live canvas animation before the code — because watching a quicksort partition in real time beats reading pseudocode for an hour.
02
No fluff, no padding
Every explanation is the shortest version that doesn't sacrifice depth. No filler intros, no five-paragraph warm-ups. You're here to learn fast — we respect that and write accordingly.
03
Theory meets practice
Every topic ends with curated problems tied directly to the concept — tagged by company type (FAANG vs startup) so you know exactly what to prep for, not just what's theoretically relevant.
Coverage
What's covered
Every major CS topic a developer needs for interviews and beyond.
Data Structures
Arrays, Trees, Graphs, Heaps, Tries…
Algorithms
Sorting, DP, Backtracking, Searching…
Programming
Python live · JS, Java, C++ coming
System Design
Scaling, caching, queues, microservices
Data & Cloud
14 DB engines + DevOps toolchain
AI / ML
ML, DL, NLP, CV, Reinforcement Learning
Interview Q&A
290+ questions, 10 tracks, company tags
OS & Networks
Processes, memory, TCP/IP, DNS
Big-O Analysis
Time & space for every algorithm
Tech Stack
Built lean — no bloat
Zero npm, zero bundler, zero tracking scripts. Everything runs on native web APIs.
CSS3
Design system / tokens
Vanilla JS
Zero frameworks
Canvas 2D API
All animations
localStorage
Progress tracking
⌨️
JetBrains Mono
Code / labels
Principles
What we stand for
Non-negotiable commitments that will never change.
✓
Complete computer science, one platform
Programming languages, DSA, system design, data & cloud (databases + DevOps), OS & networks, AI/ML, and interview prep — eight tracks that build on each other, from first principles to production patterns.
◎
Learn by doing, not just reading
Canvas visualizers you can step through, Python that runs in the browser, three-language code toggles, and a quiz on every page. Concepts stick when your hands are on them.
Interview-ready by design
Every topic maps to real interview questions — 290+ curated problems tagged for FAANG and startups, with trade-off analysis and common-mistake sections built into every page.
Performance is a feature, not a bonus
Zero npm packages. Zero external JS bundles. Pages load in under a second. Animations run at 60fps on a 5-year-old phone. Speed is non-negotiable — slow education is bad education.
What's Next
Roadmap
What we're building toward — in the open.
SHIPPED
✓Live Canvas visualizations
✓290+ interview questions
✓localStorage progress tracking
✓Django, Flask, FastAPI guides
✓AI/ML — 8 topic modules
✓Git reference section
✓Forge design system v4
COMING NEXT
◦System Design section
◦Dark/light mode toggle
◦Global search across all topics
◦More DSA animations (30 → 50+)
◦Difficulty filter on interview pages
◦Mobile-first animation redesign
◦Competitive programming track
TechForge is open source
Found a bug? Have a topic you want to add? Want to improve an explanation or add a new canvas animation?
Contributions are welcome. The entire codebase is plain HTML, CSS, and vanilla JS — no build tools needed to get started.
Ready to dive in?
Stop reading about it —
start learning.
Pick any topic and go. Open a page and start building real understanding — the kind that gets you hired.
✓8 tracks
✓Interactive
✓Interview-ready
✓Progress saved locally
