50+ Interactive Cheatsheets • Always Expanding

Study Smarter. Learn Faster.

Interactive cheatsheets for Programming, Mathematics, Science, English and more. Toggle sections, run mini-quizzes, copy code — designed for real learning, not just reading.

50+

Cheatsheets

8

Categories

Free

Forever

Dark

Mode ✓

💻

Programming Languages

7 sheets

Python Complete Cheatsheet

Variables, loops, functions, OOP, file I/O, libraries — everything in one place with runnable examples

Python 3.x Beginner → Advanced Interactive

JavaScript Cheatsheet

ES6+, DOM, async/await, closures, prototypes and modern JS patterns

ES6+Interactive

Pointers, memory management, STL, templates, OOP — full C++ reference

Java Cheatsheet

OOP, Collections, Streams, multithreading, Spring basics

SQL Complete Cheatsheet

SELECT, JOINs, subqueries, indexes, transactions — full SQL reference with examples

Git & GitHub Cheatsheet

Commands, branching, merging, rebasing, pull requests — full workflow guide

Data Structures & Algorithms

Arrays, linked lists, trees, graphs, sorting, searching — complete DSA reference

DSAPython + C++

🌐

Web Development

7 sheets

HTML + CSS Complete Cheatsheet

All HTML5 tags, CSS properties, Flexbox, Grid, animations, selectors — with live preview examples

HTML5CSS3Interactive

React.js Cheatsheet

Components, hooks, state, props, useEffect, context, routing

Node.js + Express Cheatsheet

HTTP server, REST APIs, middleware, authentication, databases

Flexbox & Grid Visual Guide

Visual interactive guide to CSS Flexbox and Grid with live editable examples

CSS LayoutVisual

Tailwind CSS Cheatsheet

All utility classes: spacing, typography, colors, flexbox, grid, transitions

🤖

AI & Data Science

6 sheets

Machine Learning Fundamentals

Supervised vs unsupervised, regression, classification, clustering, model evaluation — full ML roadmap with Python examples

Pandas Cheatsheet

DataFrames, Series, filtering, groupby, merge, pivot — complete Pandas reference

NumPy Cheatsheet

Arrays, indexing, broadcasting, linear algebra, random — NumPy complete guide

Statistics for Data Science

Mean, variance, distributions, hypothesis testing, p-values, correlation

🔢

Mathematics

8 sheets

Master Formula Sheet

Algebra, geometry, trigonometry, calculus, statistics — every important formula with explanations and worked examples

All LevelsPrintable

Algebra Cheatsheet

Equations, inequalities, polynomials, factoring, quadratic formula, matrices

Calculus Cheatsheet

Limits, derivatives, integrals, chain rule, product rule, integration by parts

A-Level / Grade 12

Trigonometry Cheatsheet

Sin/cos/tan, identities, sine rule, cosine rule, unit circle, graphs

Statistics & Probability

Mean, median, mode, variance, probability, distributions, hypothesis testing

🔬

Science

8 sheets

Biology Complete Cheatsheet

Cell biology, genetics, human body, ecology, photosynthesis, evolution — O/A Level biology

Chemistry Cheatsheet

Periodic table, bonding, reactions, organic chemistry, stoichiometry

Physics Cheatsheet

Mechanics, waves, electricity, thermodynamics, nuclear — all formulas and laws

📖

English Language & Literature

5 sheets

English Grammar Complete Sheet

Parts of speech, tenses, punctuation, sentence structure, active/passive voice, common errors — with examples

GrammarAll Levels

Literary Devices Cheatsheet

Metaphor, simile, personification, irony, symbolism — all 30+ devices with examples

Essay Writing Guide

Structure, thesis statements, paragraph writing, transitions, conclusions — complete writing guide

🎯

Exam Preparation

4 sheets

MDCAT Quick Reference

Biology, chemistry, physics, English — all key MDCAT topics in one fast-access sheet

ECAT Formula Sheet

Maths, physics, chemistry — all ECAT formulas, concepts and quick revision points

SAT Quick Guide

Math, reading, writing — SAT structure, key formulas and strategies

💼

Career & Productivity

4 sheets

Resume Writing Guide

ATS-friendly structure, bullet writing, action verbs, skills section — with templates

Linux & Terminal Commands

File system, permissions, processes, networking, bash scripting — essential terminal commands

Computer Networking Basics

OSI model, TCP/IP, DNS, HTTP, subnetting, protocols — networking essentials

Interview Preparation Guide

STAR method, common questions, technical interviews, behavioural questions