All-in-one Interview Prep Platform

Track your
<Interview Prep>
land the job.

One platform for everything — curated DSA sheets, company prep guides, creator roadmaps, video tutorials and prep with friends with a full progress tracker.

Start for Free Explore Tracker

500+DSA Problems

20+Prep Guides

15+Creator Sheets

200+YouTube Tutorials

30+Company Prep

1.0k+Prep with Friends

Today's Progress

62%

Topics done

+12% this week

DSA Tracker3/5 done

Two SumArray

Binary SearchSearch

Merge SortSorting

LRU CacheDesign

Word LadderBFS/DFS

Problem Solved!

Binary Search · Easy

🔥 5 day streak

Platform Features

Everything you need
to land the offer

No more juggling between tabs. Every tool, every resource, in one focused platform.

Core Features

30+

Companies

450+

Problems

Track Progress

DSA Tracker

Interactive progress dashboard covering Arrays, Trees, Graphs, DP and every core topic. See exactly where you stand with topic-level completion rings and daily streaks.

Open Tracker

450+

Problems

Topics

Daily

Streaks

100%

Trackable

Topic-wise progress rings
Daily goal tracking
Favorites & notes
Multi-topic roadmap

Always Available

StackMastery AI

An AI coding assistant available on every page — DSA tracker, creator sheets, company prep, and interview planner. Ask questions, get explanations, understand concepts instantly.

Available on every page
Context-aware responses
Explains DSA, algorithms & design
Expandable full-screen mode

Try the AI

Interview Ready

Interview Prep Guides

Company-wise interview playbooks for Google, Amazon, Microsoft, and 30+ top companies. Role-specific guides with must-know topics, round structures, and insider tips.

Company-wise playbooks
Role-specific guides
Round-by-round breakdown
Trending interview topics

Browse Guides

Curated Content

Creator Sheets

Top problem sets by Striver, Love Babbar, Padho with Pratyush and more — directly embedded as interactive trackers so you can mark progress without leaving the platform.

Striver A2Z & SDE Sheet
Love Babbar 450
Custom creator trackers
Linked problem solutions

Start a Sheet

Targeted Prep

Company Prep

Complete interview systems for Amazon, Microsoft, and top product companies. Get a custom roadmap, company-specific question banks, and AI mock interviews.

Company-wise roadmaps
Curated question banks
Voice AI Mock Interviews
Readiness scoring

Cracking Now

Learn by Watching

Video Tutorials

Hand-picked YouTube playlists from the best creators, organized by topic and difficulty. Resume where you left off with per-video progress tracking.

Curated YouTube playlists
Per-video completion
Resume watching
Topic-organized library

Watch Now

Collaborative

Prep with Friends

Join study rooms, tackle daily challenges together, and climb live leaderboards. Stay accountable and motivated with your prep squad.

Shared study rooms
Daily challenge sets
Live leaderboard
Real-time activity feed

Join a Room

AI-Powered

Interview Planner

Tell the AI your company, role, and weak spots — it generates a full day-by-day prep schedule with study, mock, and revision sessions tailored to your interview date.

Plan My Interview

How it works

Set Your Goal

Company, role & date

AI Builds Plan

Day-by-day schedule

Daily Practice

Guided study sessions

Land the Offer

Arrive fully prepared

AI-generated day-by-day scheduleMock interview & revision daysDaily email reminders at 8 AMProgress tracking per plan

Complete Interview System

Not just practice —
a complete system

Company Prep gives you a personalized roadmap, curated question banks, Voice AI mock interviews, readiness scoring, and smart guidance — all in one place.

Phase 1 — Prepare

Choose Company

Pick from Amazon, Microsoft, TCS, Infosys, Accenture — see interview rounds, difficulty & focus topics.

Personalized Roadmap

Get a custom study plan with topics, order of study, and estimated completion timelines.

Question Bank

40–60 handpicked DSA questions per company with difficulty, topic tags, and why it matters.

interview phase begins

Phase 2 — Interview

Voice AI Interview

Speak with an AI interviewer that asks DSA questions, dynamic follow-ups, and runs on a live timer.

Score Dashboard

Get scored on communication, problem-solving, and optimization. See your strengths and weaknesses.

Next Step Guidance

AI tells you exactly what to do next: "Practice 5 Graph problems + 2 mock interviews to be ready."

Free vs Premium

Companies1 onlyAll 5

Question Bank10–15 questions40–60 per company

AI Mock Interviews1 per dayUnlimited

Readiness ScoreBasic onlyFull insights

Feedback Analysis—Deep breakdown

Next Step AI—Personalized guidance

FreePremium

🚀

Ready to crack it?

Join thousands of engineers who used this system to land offers at top product companies.

Start Free View Premium →

No credit card required for free plan

PLATFORM FEATURES

Everything you need to
land your next role.

StackMastery brings together all the tools, content, and community — in one focused platform.

DSA Tracker

Track Every Problem.

Master Every Pattern.

A unified dashboard to monitor your progress across arrays, trees, graphs, DP and more. Visual heatmaps, streak tracking, and intelligent gap analysis keep you on track.

Open Tracker

DSA PROGRESS

Algorithm Mastery

247

problems solved

Arrays & Strings84%

Trees & Graphs67%

Dynamic Prog.52%

Sliding Window91%

Backtracking38%

5-day streak 🔥

01 / 06

Collaborative Learning

Prep together, win together

Stop prepping alone. Join study rooms with friends, compete on live leaderboards, and stay accountable with daily challenges.

Study Rooms

Join admin-managed rooms and grind alongside your squad with shared daily goals and invite codes.

Daily Challenges

Tackle curated problem sets every day. Problems unlock sequentially — keeping competition fair.

Live Leaderboard

+10 pts per problem solved, +20 bonus for finishing the full daily set. Climb the ranks.

Activity Feed

Real-time updates as friends complete problems, hit milestones, and join the room.

Join a Room Browse Rooms →

DSA Grind Squad

4 members · 3 problems today

LIVE

ChallengesLeaderboardFeed

🥇Arman A.3/3ALL ✓340 pts

🥈Zaweel A.2/3280 pts

🥉Jayash B.2/3250 pts

#4You1/3200 pts

Today's Challenges

✓

Two SumEasy

✓

Longest Substring Without RepeatingMedium

Binary Tree Maximum Path SumHard

+20 pts bonus!

Ready to stop prepping solo?

Create or join a room — it's free for everyone.

Daily

Challenges

Live

Leaderboard

Free

To Join

Get Started Free

Why StackMastery

Built for developers
who mean business

Most platforms give you problems. We give you a complete preparation system — curated, structured, and laser-focused on getting you hired.

vs LeetCodeWe add roadmaps, guides & job context

vs Roadmap.shWe add interactive trackers & content

vs Notion templatesWe add live data, sheets & tutorials

Truly All-in-One

DSA tracker, prep guides, curated sheets, job board, and tutorials — all under one roof. No fragmented workflows, no context switching between a dozen platforms.

Structured Roadmap

Follow topic-sequenced learning paths built by engineers who've cracked FAANG interviews. Know exactly what to study next, so you never waste time or miss a blind spot.

Real Interview Focus

Company-specific playbooks, role-tailored content, and trending topics based on recent interview reports. Prep for the exact interview you're walking into — not a generic one.

Granular Progress Tracking

Mark problems solved, track completion per topic, set daily goals, and review your progress over time. See the full picture of your preparation — not just a problem count.

Community Feedback

Loved by top engineers

Join thousands of developers who have leveled up their careers with StackMastery.

Alex Rivera

@arivera_dev

"The Voice AI Mock Interview feature is a game-changer. It felt like a real recruiter was questioning me. Finally landed my role at Amazon!"

SDE @ Amazon

Sarah Chen

@sarah_codes

"DSAPrepMastery is the most organized prep platform I've used. No more messy Excel sheets for tracking Striver's A2Z."

Fullstack Dev @ Google

Vikram Singh

@vikram_dev

"The company-specific playbooks are incredibly accurate. The Microsoft round breakdown was spot on for my interview last week."

SDE-II @ Microsoft

Jordan Lee

@jordan_tech

"Prep with Friends keeps me accountable. The live leaderboards make grinding DSA actually fun and competitive."

Backend Engineer @ Uber

Alex Rivera

@arivera_dev

"The Voice AI Mock Interview feature is a game-changer. It felt like a real recruiter was questioning me. Finally landed my role at Amazon!"

SDE @ Amazon

Sarah Chen

@sarah_codes

"DSAPrepMastery is the most organized prep platform I've used. No more messy Excel sheets for tracking Striver's A2Z."

Fullstack Dev @ Google

Vikram Singh

@vikram_dev

"The company-specific playbooks are incredibly accurate. The Microsoft round breakdown was spot on for my interview last week."

SDE-II @ Microsoft

Jordan Lee

@jordan_tech

"Prep with Friends keeps me accountable. The live leaderboards make grinding DSA actually fun and competitive."

Backend Engineer @ Uber

Priya Sharma

@priya_swe

"System Design module is gold. The LLD/HLD foundational concepts are explained better than most paid courses."

Software Engineer @ Meta

Marcus Low

@marcus_builds

"The UI is just premium. It makes you want to spend time on the platform. The emerald theme is so clean."

Frontend Lead @ Atlassian

Aisha Khan

@aisha_tech

"The Job Board integration is so helpful. I can switch from solving a DP problem to applying for a job in one click."

SDE @ Adobe

David Park

@dpark_dev

"Best investment I made for my interview prep. The OOPS and DBMS guides are perfect for core subject rounds."

SWE @ Uber

Priya Sharma

@priya_swe

"System Design module is gold. The LLD/HLD foundational concepts are explained better than most paid courses."

Software Engineer @ Meta

Marcus Low

@marcus_builds

"The UI is just premium. It makes you want to spend time on the platform. The emerald theme is so clean."

Frontend Lead @ Atlassian

Aisha Khan

@aisha_tech

"The Job Board integration is so helpful. I can switch from solving a DP problem to applying for a job in one click."

SDE @ Adobe

David Park

@dpark_dev

"Best investment I made for my interview prep. The OOPS and DBMS guides are perfect for core subject rounds."

SWE @ Uber

Frequently asked questions

Everything you need to know before you start your prep journey.

Yes — core features including the DSA tracker, roadmap, prep guides, and curated problem sheets are completely free. No credit card required.

LeetCode gives you problems. StackMastery gives you a system — structured roadmaps, company-specific playbooks, progress tracking, daily goals, and curated sheets all in one place so you always know what to study next.

You can explore the roadmap and browse content without an account. Creating a free account unlocks progress tracking, daily goals, favorites, and personalized prep sheets.

We cover top-tier companies including Google, Amazon, Meta, Microsoft, Apple, and many more. Each company prep guide includes frequently asked topics, role-specific patterns, and recent interview insights.

Topics are sequenced from fundamentals to advanced — arrays, strings, hashing, two pointers, sliding window, trees, graphs, dynamic programming, and beyond. Each topic links directly to curated problems and explanations.

Absolutely. StackMastery is fully responsive and works great on mobile, tablet, and desktop — so you can review concepts or check off problems from anywhere.

We continuously update problem sheets, company guides, and prep content based on recent interview reports and community feedback so you're always preparing with current, relevant material.

Start Today — It's Free

Your next offer is one prep session away

Join thousands of developers using StackMastery to prepare smarter, track their growth, and crack interviews at top companies.

Start Learning Now Explore First

10k+Developers

500+DSA Problems

30+Companies

FreeCore Features

No credit card required · Free forever for core features

StackMastery

Track your<Interview Prep>land the job.

Everything you needto land the offer

DSA Tracker

StackMastery AI

Interview Prep Guides

Creator Sheets

Company Prep

Video Tutorials

Prep with Friends

Interview Planner

Not just practice —a complete system

Choose Company

Personalized Roadmap

Question Bank

Voice AI Interview

Score Dashboard

Next Step Guidance

Free vs Premium

Ready to crack it?

Everything you need toland your next role.

Track Every Problem.

Master Every Pattern.

Prep together, win together

Study Rooms

Daily Challenges

Live Leaderboard

Activity Feed

Built for developerswho mean business

Truly All-in-One

Structured Roadmap

Real Interview Focus

Granular Progress Tracking

Loved by top engineers

Alex Rivera

Sarah Chen

Vikram Singh

Jordan Lee

Alex Rivera

Sarah Chen

Vikram Singh

Jordan Lee

Priya Sharma

Marcus Low

Aisha Khan

David Park

Priya Sharma

Marcus Low

Aisha Khan

David Park

Frequently asked questions

Your next offer is one prep session away

Everything you needto land the offer

DSA Tracker

StackMastery AI

Interview Prep Guides

Creator Sheets

Company Prep

Video Tutorials

Prep with Friends

Interview Planner

Not just practice —a complete system

Choose Company

Personalized Roadmap

Question Bank

Voice AI Interview

Score Dashboard

Next Step Guidance

Free vs Premium

Ready to crack it?

Everything you need toland your next role.

Track Every Problem.

Master Every Pattern.

Prep together, win together

Study Rooms

Daily Challenges

Live Leaderboard

Activity Feed

Built for developerswho mean business

Truly All-in-One

Track your
<Interview Prep>
land the job.

Everything you need
to land the offer

Not just practice —
a complete system

Everything you need to
land your next role.

Built for developers
who mean business

Everything you need
to land the offer

Not just practice —
a complete system

Everything you need to
land your next role.

Built for developers
who mean business