Every interview round,
one place to grind.
Company-wise DSA from recent interview loops, system design write-ups, and full roadmaps for GenAI and DevOps. Practise what Amazon, Google or Goldman Sachs actually ask, round by round.
No account, no sign-up. Your progress and notes stay in your browser.
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- DSA problems
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Prepare for the whole loop.
Coding rounds get you to the onsite. Design and specialist rounds get you the offer. Each track has its own roadmap, notes and progress.
DSA
1,899 problems
Reported from 67 companies in the last 30 to 90 days, in the order they came up.
System design
60 questions
High-level and low-level design write-ups with estimates, APIs, data models and diagrams, plus 28 illustrated fundamentals guides.
AI
24 lessons · 40 problems
A GenAI and agents roadmap with quizzes and runnable code, then RAG, LLM serving and ML system design questions.
DevOps
31 lessons · 42 problems
Linux to Kubernetes, AWS, Terraform and SRE, with platform design, troubleshooting and implement-it questions.
Questions from real loops at
The smarter way to prepare.
One focused workspace to find, solve, revise and track what actually matters for your target companies, from the coding round to the specialist round.
Company-wise lists
Every problem tagged with who asked it and where it sat in that company's list, so you solve the most-reported ones first.
Fresh, dated lists
Lists are rebuilt from interview reports in the last 30 or 90 days, not from a decade-old question bank.
A roadmap for every track
Twenty DSA topics in learning order, system design fundamentals, and step-by-step roadmaps for GenAI and DevOps with quizzes.
Streaks, no account
A daily streak that lives in your browser. Nothing to sign up for, nothing to sync.
Personal notes
Markdown notes on every problem and lesson, autosaved locally. Export them as JSON whenever you want.
Command palette
Press ⌘K anywhere to jump to any problem, company, topic or roadmap without lifting your hands off the keyboard.
Built for signal. Designed for speed.
Every company list keeps the order in which questions were reported. Solve the top 20 for your target company first and you have covered most of what you will see.
Practice that works harder
for your offer.
Coding, system design, AI and DevOps rounds in one focused workflow. No account needed.
Start grinding