Every interview cheatsheet.
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Clean, copy-paste reference for the syntax, complexity and questions that actually come up — across every major language and every round: DSA, system design, databases and behavioral. Start free, unlock everything when you're ready.
- 76 cheatsheets · 9,057 entries live
- JavaScript, Python, Java, Go, C++, TypeScript, SQL, Rust
- Most-asked DSA, system design, databases & behavioral questions
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What candidates say
Real use case: revise on the commute, the night before, or in the 30 minutes before your round.
I used the flashcards to revise the night before my interview and it covered almost everything that came up in the DSA round.
The SQL and indexing sheets were exactly what I revised before my database round. Helped me actually explain the why, not just the syntax.
I'm not great at behavioral answers — the STAR-method sheet gave me a structure I could reuse for every question. Calmed my nerves a lot.
Used it on my phone during my commute for two weeks. Flip a card, answer out loud, next. That's how I finally memorised the pattern catalogue.
The Go and concurrency sheets saved me hours of note-making. I opened one sheet each morning before work and it stuck by interview day.
Preview showed me the exact card format before paying, so I knew what I was buying. Ended up prepping my whole system-design revision from it.
The honest promise
Your payment either works, or your money comes back. If Razorpay deducts your payment but your access doesn't unlock, email us and it's refunded in full — that case is guaranteed, not discretionary. Purchases are otherwise final, and everything is previewable before you buy. Full refund policy.
FAQ
What exactly do I get when I unlock?
Instant access to every paid cheatsheet in your browser and a downloadable PDF of every sheet — all languages plus the DSA, system design, database and behavioral question banks, with recall-first flashcards and saved progress. The Complete tier includes every future sheet too.
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The moment Razorpay confirms your payment, your access unlocks on this page automatically and stays unlocked in your browser. You can also save the access link we show on the success screen.
Do prices include GST?
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Will new languages be added?
Yes — the library is built to grow. The Complete tier includes every future addition at no extra cost.
What is your refund policy?
Final sale — the cheatsheets are digital content you can preview before buying, so all purchases are non-refundable. The one exception: if your payment is deducted but doesn't succeed, or succeeds without giving you access, that's refunded in full to your original payment method. Full refund policy.