What DataStructure360 is
DataStructure360 (Structura) is a free, interactive data structure visualizer built for students, developers, and educators. It shows how arrays, linked lists, stacks, queues, trees, heaps, hash tables, graphs and tries behave by running each operation step by step, explaining what happened and stating its time complexity (Big O).
Who it is for
- Students preparing for data structures and algorithms (DSA) courses and exams
- Developers practicing for coding interviews at FAANG and other tech companies
- Teachers who want a visual aid for classroom demonstrations
- Self-learners who want to understand how data structures actually work
Features
- 9 data structures with multiple variants (singly/doubly/circular lists, BST/AVL, min/max heaps, 4 queue types)
- Step-by-step animations with adjustable speed
- Time complexity (Big O) shown for every operation
- Undo/redo, bulk insert, presets, and keyboard shortcuts
- Light and dark mode
- Export visualizations as PNG
- Works on phones, tablets, laptops, and large screens
- No sign-up, no accounts, 100% free
How it works
Everything runs in your browser. There are no accounts, and what you type into the visualizers stays on your device. The site is built as static HTML with zero dependencies for maximum performance.