Algo Mind

Algo Mind turns abstract algorithms into something you can see. Every lesson pairs a step-by-step animated visualization with synced, highlighted code — so instead of memorizing solutions, you watch pointers move, trees grow, and tables fill in until the idea actually clicks. Whether you're preparing for coding interviews, taking a data structures course, or rebuilding your fundamentals, Algo Mind teaches the patterns behind the problems — not just the answers. WATCH ALGORITHMS THINK • Step-by-step animations for 89 classic problems — play, pause, and step through at your own pace • Code highlighting synced to the animation, so you always know which line is running • A live memory view shows variables, pointers, and call frames updating as the algorithm works • On supported problems, enter your own input and trace exactly how the algorithm handles it EVERY DATA STRUCTURE, VISUALIZED Arrays, hash maps, linked lists, stacks and queues, binary trees, tries, heaps, graphs, matrices, dynamic programming tables, recursion call stacks, sliding windows, and bit operations — all drawn with one consistent color language, so what you learn in one problem transfers to the next. 17 INTERVIEW TOPICS, 89 PROBLEMS • Arrays & Hashing, Two Pointers, Sliding Window, Stack, Binary Search, Linked List, Trees, Tries, Heap / Priority Queue, Backtracking, Graphs, Dynamic Programming, Greedy, Intervals, Math & Geometry, Bit Manipulation, and Sorting • Plain-language explanations with worked examples for every problem • Reference implementations in Python and Kotlin • Time and space complexity broken down for every solution 21 ANIMATED CHEATSHEETS Compact pattern references brought to life with nearly 500 animated steps and predict-the-next-step quizzes. Perfect for a fast review the night before an interview. PRACTICE THAT STICKS • Quick sessions with three question types: put algorithm steps in the right order, judge true/false concept checks, and solve fill-in-the-blank code puzzles — 176 of them, in Python and Kotlin • Timed Rank Mode for when you want a little pressure • Pick your topics, difficulty, and session length — or start with one tap STAY ON TRACK • Daily streaks that count any learning activity • XP and per-topic progress tracking • Bookmark problems to revisit later • Optional study reminders at the times you choose MADE TO STUDY WITH • Clean, modern design with full dark mode • Core lessons available offline • No ads, ever START FREE Sample problems and 8 of the 21 cheatsheets are completely free. An Algo Mind Premium subscription unlocks the full problem library, every cheatsheet, and all practice modes. Stop grinding solutions you'll forget. Learn to see how algorithms work — and walk into your next interview with intuition instead of memorization. Privacy Policy: https://www.algomind.app/privacy.html Terms of Use: https://www.algomind.app/terms.html