🎯 Train with purpose. Interview with confidence.
Anything is possible

Don't just prepare for interviews —
train for the job you actually want.

Real questions from real companies — paired with tiered hints, structured guides and progress tracking that shows you exactly how close you are to offer-ready. One focused place to go from "where do I even start?" to "I got the offer."

See it in action

Not a mockup screenshot — pick a question, watch the hints and full breakdown unlock.

🧩 DSA
Group Anagrams
MediumHash Map
Two Sum
EasyArrays
Longest Substring
HardSliding Window
👆
Group Anagrams
MediumArraysHash Map
✓ Solved
💡 Hint 1 — What property do all anagrams of a word share once you sort their letters?
🔒 Hint 2 & full approach — sign in for free to unlock the rest of the breakdown
Asked at Amazon · Google · MetaYour progress: On track 🔥

Why PrepForge

There's already a tool for DSA. A tool for SQL. A tool for system design. Here's why we built one platform instead of another single-purpose one.

🧭
One platform, every round
DSA, SQL, System Design, QA, behavioral and certifications — in one profile with one progress tracker, instead of five tabs and five separate subscriptions.
🎯
Mapped to real companies
Filter straight to what a specific recruiter has actually asked — not a generic global bank you're left guessing your way through.
🧠
Teaches the approach, not just the answer
Visual, step-by-step breakdowns — two pointers sweeping an array, a system assembling itself piece by piece — so you learn how to think, not just what to memorise.
🏫
Built for institutions, not just individuals
Placement cells and hiring teams get real tooling — timed batch tests, auto-grading and results dashboards — not just another practice link to forward.
🎓

For Colleges

Publish a timed mock test to your entire batch in two clicks — mixed MCQ and live coding, auto-graded. Get a results dashboard showing exactly who's ready, before the company shows up on campus.

"Know who's ready — before the recruiter walks in."
🏢

For Organizations

Run a hiring drive, screen candidates with real timed assessments, and see every result in one dashboard — instead of chasing spreadsheets after the fact.

"Screen at scale, decide with data — not gut feel."

Everything you get, in one place

Fourteen tracks, one profile, one progress tracker — pick a category to see what's inside.

DSA1000+ questions
Two-pointer, sliding window, and everything between.
Explore DSA →
SQL183 questions
Real interview queries — joins, window functions, and the tricky edge cases.
Explore SQL →
System Design87 topics
Watch a system get built — API, cache, database, queue, snapped together piece by piece.
Explore System Design →
QA69 questions
Test plans, edge cases, and the bugs everyone else misses.
Explore QA →
Behavioral18 scenarios
Structure your story with STAR so the interviewer hears exactly what they need to.
Explore Behavioral →
Exposure8 scenarios
Graded, on-call-style incidents — fix the bug, get scored the moment you submit.
Explore Exposure →
📚
1000+
Curated questions
🏢
50+
Companies mapped
🗺️
5
Skill tracks
📈
24/7
Progress tracking

🌱 Our Vision

Great engineers get passed over every day — not for lack of skill, but because they walked into the room not knowing how the questions would be asked. We started PrepForge to close that gap. Our mission is to train every candidate — from first-time job seekers to seasoned engineers chasing their next big leap — with the same depth, structure and company-specific insight that top performers use to land offers at the companies they actually want to work for.

No more scattered PDFs, stale question lists or guesswork. Just one clear path from "where do I even start?" to "I got the offer" — one focused session at a time.

Learn more about us →

How PrepForge gets you there

🗺️
Pick your track
Choose from DSA, SQL, System Design, QA or Cloud certifications — or follow the question bank mapped to your target company.
⚡
Practice with purpose
Work through real interview questions with tiered hints, approaches and theory — built to teach you how to think, not just what to type.
📈
Track & improve
Bookmark the tricky ones, log your progress, and keep circling back until your weak spots become your strengths.
🎯
Walk in ready
Show up knowing exactly what to expect — and confident that you've already solved problems just like it.
Your dream job is one prep session away.
Create a free account to bookmark questions, track your progress and pick up right where you left off.