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DSA Visualizer turns data structures and algorithms into something you can watch. Each algorithm plays one move at a time with a plain-language explanation, live pseudocode and running counters for comparisons and swaps. Predict mode asks a question before the next step is revealed, the Big-O playground plots operation counts as input size grows, and Compare mode races two sorting algorithms on the same input. Progress and bookmarks stay on the device, and lessons work offline.
To make 90 algorithms playable and learnable on a phone, with clarity at every step and no account or connectivity required.
We built a step-through visualisation engine with synchronised pseudocode highlighting, complexity analysis, colour-blind friendly palettes and light and dark themes — packaged as a fast, offline-first Android app.
5.0-star rated on Google Play with early learner reviews, 100+ installs and growing, used for revision and interview preparation.