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Cheat Sheets
Short, scannable sheets for the night before an interview: DSA patterns, Java syntax, SQL, Git, CS fundamentals, system design, OOP & LLD and a placement checklist. Every topic has a tick box, so you can see what's left to revise. Your ticks stay in this browser.
DSA Interview Cheat Sheet
When to use each core pattern, the key idea, how to spot it and the classic problems to practise.
Tick topics off as you reviseJava SyntaxJava Syntax for DSA
The Java arrays, strings and collections syntax you type in every coding round, with compiled snippets and the Big-O of each operation.
Tick topics off as you reviseSQLSQL Cheat Sheet
The 20 SQL patterns that keep showing up in interviews, from WHERE vs HAVING to window functions, each with a query you can run.
Tick topics off as you reviseGitGit Cheat Sheet
The 20 Git commands you will actually use at work, from first commit to safely undoing mistakes on a shared branch.
Tick topics off as you reviseCS FundamentalsCS Fundamentals Cheat Sheet
The 20 operating system, database and networking concepts that come up again and again in interviews, each boiled down to a crisp definition and the facts worth saying out loud.
Tick topics off as you reviseSystem DesignSystem Design Concepts
The twenty concepts that show up in almost every system design interview, each explained in a few lines with the trade-off you are expected to mention.
Tick topics off as you reviseOOP & LLDOOP & LLD Cheat Sheet
Object-oriented basics, the five SOLID principles and the most asked design patterns, each with a tiny Java example, plus practice low-level design problems.
Tick topics off as you revisePlacementPlacement Checklist
A practical 20-point checklist to get your profile, skills, stories and job search ready before you start applying.
Tick topics off as you reviseSeveral topic lists are based on the free Everything You Need to Get Placed checklist by Mohammad Fraz. All explanations, examples and code on LayoffReady are original.