A free online sorting algorithm visualizer that brings algorithms to life. Watch 8 different sorting algorithms — Bubble, Selection, Insertion, Merge, Quick, Heap, Shell, and Cocktail Sort — as they sort arrays with color-coded bars. Compare performance across random, nearly sorted, and reversed data. Adjust array size and animation speed.
Select a sorting algorithm from the available options.
Choose a data arrangement: Random, Nearly Sorted, or Reversed.
Press Start to watch the algorithm sort the array.
Compare how different algorithms perform.
Amber bars are being compared, red bars are being swapped, green bars are in their final sorted position, and purple bars are unsorted.
Quick Sort and Merge Sort typically perform best on random data. Bubble Sort is the slowest but easiest to understand.
Free online tool — works in your browser, no sign-up required. Start using it right now.
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