Skip to content
Built around one insight: structure beats grinding

Everything you need to land the offer

What separates candidates who get offers from candidates who almost do is never raw effort - it's structure: learning the right things, practising the right way, and performing under real interview pressure before the stakes are real. Everything below covers that journey end to end - learn it, practice it, interview on it, then land it with a tailored resume and a tracked application. Teams and institutes get the same power at cohort scale.

500+

DSA Problems

Pattern-tagged

4

AI Interview Portals

Full loop coverage

20+

Structured Courses

CS fundamentals to advanced

100+

System Design Questions

HLD + LLD with rubrics

AI-powered feedback on every answer
4 dedicated interview portals
Resume studio + real jobs board
For individuals & organizations

Your AI Mentor

Free - 5 messages to try it

A coach that knows your record and is there at any hour.

Not a chatbot bolted onto a help page. The mentor can see the courses you are part-way through, your mock interview scores and the patterns you keep losing marks on, and it answers from what is actually on this site - always with the link, never an invented one. It speaks and listens if you want it to, and it can set up a mock, build you a roadmap or read your last interview back to you and turn it into work.

Talk to your mentor

How to use

  1. 1Open /mentor, or press Shift+M from anywhere on the site
  2. 2Ask it what to study today - it answers from your actual plan and progress, not a generic syllabus
  3. 3Turn on voice to talk to it, or dictate instead of typing - nothing sends until you press send
  4. 4After a mock interview, ask for a debrief and it turns the score into the next three things to do

The Prep Planner

Free to build

"My interview is in six weeks" becomes a plan for every day.

A few one-tap questions - your role, the kind of company, your level in each subject and the hours you actually have each weekday - and you get a dated roadmap to your interview, grouped into sprints that each end on a mock interview. It is built only from our own lessons, problems, videos and mocks, so every task is a link to something you can open right now.

Build my roadmap

How to use

  1. 1Answer the questions at /planner - no account needed to see the finished plan
  2. 2Review the whole syllabus before anything is saved, and drop any module you already know
  3. 3Work the plan - tasks tick themselves off when the site sees you finish a lesson, pass a problem or sit a mock
  4. 4Miss a day and nothing turns red: unfinished work rolls forward by itself the next morning

Narrated Video Lessons

Free to watch

Nearly 700 animated lessons with a real voice walking you through them.

Every lesson can be watched as well as read. An animated video sits at the top of the page with narration, diagrams that build as they are explained, and a presenter in the corner - so a concept you could not get from a paragraph can be watched instead. Coverage is growing; where a video is not ready yet the page says so.

See a lesson video

How to use

  1. 1Open any lesson - if it has a video it plays at the top, above the written article
  2. 2Watch it, read it, or listen to the article with read-aloud - whichever suits the commute
  3. 3Keep playing with the screen off; the audio carries on and the video catches up when you look again
  4. 4Browse the whole set at /explainer-gallery

Structured Courses

Learn any topic your way - read it, hear it, watch it move, quiz it.

Bite-sized topics across DSA, System Design, SQL, Concurrency, and more - each with text-to-speech listening, animated concept visualizations, select-to-highlight notes, AI summaries, and adaptive AI quizzes. Finish a course and earn a verifiable certificate.

Browse Courses

How to use

  1. 1Browse courses at /courses - read a topic, or hit Listen to hear it read aloud on your commute
  2. 2Watch the built-in animations to SEE each concept work, and highlight any line to save it to your Notebook
  3. 3Generate an AI summary of the topic, then test yourself with an AI quiz targeting your weak spots
  4. 4Complete the course to earn a shareable, verifiable certificate

DSA Problems & Visualizer

Practice 500+ problems with step-by-step visual explanations.

Solve curated DSA problems with AI hints, visual algorithm walkthroughs, and an in-browser code editor. See exactly how the algorithm moves through data.

Start Solving

How to use

  1. 1Go to /dsa/problems and filter by topic, difficulty, or pattern
  2. 2Open a problem - read the prompt, then try your solution in the editor
  3. 3Use the visualizer (/dsa/visualizer) to see sorting, trees, and graphs animate live
  4. 4Stuck? Reveal AI-generated hints one at a time without spoiling the solution

System Design (HLD + LLD)

Design real systems step by step - with AI grading every step.

100+ high-level and low-level design questions with a guided step flow (requirements → estimation → architecture → deep dives), an architecture canvas for diagrams, live system simulations and animations that show how each design behaves, plus worked reference solutions.

Explore System Design

How to use

  1. 1Read the guide at /system-design/guide, then explore the animated system simulations to see designs in motion
  2. 2Pick a question at /system-design/practice and work through it phase by phase - diagrams included
  3. 3The AI scores every step against the question's rubric and challenges your trade-offs
  4. 4Compare your design with the worked HLD/LLD solution and re-attempt weak steps

AI Mock Interviews - 4 Portals

AI-Powered

One portal for every round of your scheduled loop - no scheduling, no partner needed.

Got a DSA round Tuesday and system design Thursday? Practice each round the night before. Four dedicated portals - DSA, System Design, Technical, and Behavioral - with a voice-based AI interviewer that asks follow-ups, keeps time, and delivers a full scored analysis after every session.

Start a Mock Interview

How to use

  1. 1Choose the portal matching your next real round at /interview - a free demo is available on each
  2. 2For DSA / Technical: solve live in the editor while the AI probes your approach and complexity
  3. 3For System Design / Behavioral: speak or type your answers - the AI pushes back like a real panel
  4. 4Review the scored analysis: per-dimension breakdown, strengths, red flags, and what to fix next

Technical Interview Portal

AI-Powered

Practice live coding rounds with AI evaluation and timed pressure.

Simulate real technical coding interview rounds with time constraints, an in-browser IDE, and AI that evaluates your correctness, approach, complexity, and communication style.

Try Technical Interview

How to use

  1. 1Go to /interview/technical to browse available sessions or start immediately
  2. 2Solve the problem in the in-browser IDE under realistic interview time pressure
  3. 3The AI reviews your solution, time complexity, edge case handling, and communication
  4. 4Review your scorecard and compare against the model solution after submission

Behavioral Practice

Craft compelling STAR-format answers with a coach that talks back.

50+ curated questions across 9 competencies (leadership, conflict, failure, ownership...), each tagged with the companies that ask it. Practice out loud or in writing while the AI probes with follow-ups, then get a STAR-scored report on structure, specificity, impact, and clarity.

Practice Behavioral

How to use

  1. 1Pick a question from the bank at /behavioral/practice - filter by category, level, or company
  2. 2Answer by voice or text - the AI interviewer asks the follow-ups a real panel would
  3. 3End the session to get your scored report: STAR detection + 5 dimension scores + red flags
  4. 4Review the feedback anytime and use the improvement tips on your next question

Resume Studio

AI-Powered

Build, import, and tailor an ATS-friendly resume - with AI review.

Build a resume from scratch or import your existing one, switch themes without retyping a word, and tailor it to any job description in minutes. The AI reviewer scores it like an ATS + recruiter would and tells you exactly what to fix.

Build Your Resume

How to use

  1. 1Start at /resume/build - create from a template or import your current resume
  2. 2Edit section by section; drafts auto-save and themes restyle the same content instantly
  3. 3Run AI Review (/resume/review) for an ATS-compatibility score and line-level fixes
  4. 4Paste a job description to tailor the resume to that exact JD before you apply

Jobs Board & Application Tracker

Real openings from real companies - apply, tailor, and track in one place.

A live jobs board pulled from company career APIs - not scraped listings. Filter by role, location, and company, tailor your resume to the JD, apply, and track every application (plus contacts and notes) through the full pipeline.

Explore the Jobs Board

How to use

  1. 1Browse live openings at /resume/jobs - filtered by role, location, and company
  2. 2Open a job to read the full JD, save it, or tailor your resume to it in one click
  3. 3Apply on the company site, then log it - the tracker moves it through your pipeline
  4. 4Track statuses, interview dates, contacts, and notes at /resume/track

Progress & Stats

Login Required

See exactly how much you've improved over time.

Track topics completed, interview sessions, streak days, and time spent - all in one dashboard. Activity heatmaps show your consistency at a glance.

View Your Stats

How to use

  1. 1Visit /dashboard for a summary of recent activity and enrolled courses
  2. 2Go to /stats for deep-dive charts: activity by type, LeetCode sync, streak history
  3. 3Connect your LeetCode username in stats to pull in your solve history automatically
  4. 4Check your streak - stay consistent to climb the leaderboard

Leaderboard

Compete with the community and track your rank.

Three leaderboards - Streak, Interviews Completed, and Topics Learned. See where you stand globally and get motivated by peers who are pushing hard.

View Leaderboard

How to use

  1. 1Visit /leaderboard and switch between Streak, Interviews, and Topics tabs
  2. 2Your row is highlighted automatically if you're logged in
  3. 3Outside the top 50? Your position spotlight appears at the top of the list
  4. 4Make your profile public in settings to show on the leaderboard

Certificates

Earn shareable certificates for every course you complete.

Each certificate has a unique verification link so employers can confirm authenticity. Share directly to LinkedIn or download as a PDF.

Browse Courses

How to use

  1. 1Complete all topics and the final quiz in a course
  2. 2Your certificate is issued automatically - find it in your Dashboard
  3. 3Each certificate has a unique URL at /certificate/:id that anyone can verify
  4. 4Share to LinkedIn with one click or download the PDF for your portfolio

Resources Library

Articles, engineering blogs, and interview answers - all curated.

In-depth articles on DSA patterns, system design, and career strategy; 450 hand-picked engineering-blog reads from 57 top companies; and a growing library of interview questions with worked answers. Free to read, built for depth.

Explore Resources

How to use

  1. 1Read long-form articles at /articles - patterns, strategy, and deep dives
  2. 2Explore /resources/eng-blogs: 450 curated posts from engineering teams like Netflix, Uber, and Stripe
  3. 3Browse /answers for interview questions with clear, worked explanations
  4. 4Pair a read with practice - most topics link straight into the relevant problems

For Organizations & Institutes

For Teams

Train your cohort, assess candidates, and track readiness - at team scale.

Colleges, bootcamps, and hiring teams get managed member accounts, feature-level access control, and full progress monitoring. Send one-attempt AI interview assessments to students or candidates, review scored transcripts, and watch cohort readiness trend on one dashboard.

Explore For Teams

How to use

  1. 1Set up your organization and invite members - licences and features are centrally controlled
  2. 2Monitor every member's learning progress, practice activity, and interview scores
  3. 3Send AI interview assessments (DSA, system design, or behavioral) via one-attempt links
  4. 4Review scored results, transcripts, and team analytics to see exactly who is ready

Ready to start?

Create a free account and get courses, DSA problems, a free demo AI interview, and the resume studio immediately - no credit card needed. Everything above lives in one account.