Online Tool Store
Sorting Algorithm Visualizer
Enter an array of numbers and watch a chosen sorting algorithm step through comparisons and swaps until the array is sorted. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example
Sorting Algorithm Visualizer
- Algorithm
- Bubble Sort
- Input array
- [5, 2, 8, 1, 9]
Example shown — replace it with your own array.
Sorted result
How it works
- Enter an array of numbers and pick an algorithm.
- The tool steps through the sort, comparing and swapping.
- See the final sorted order plus the pass and comparison count.
Why it helps
Watching an algorithm's comparisons and swaps happen step by step builds an intuitive sense of its behavior that's harder to get from reading pseudocode alone.
FAQ
Which sorting algorithms are covered?
Common comparison-based algorithms — bubble sort, insertion sort, selection sort, and quicksort — the ones most often taught in an intro algorithms course.
Why do the bars change height as it sorts?
Each bar's height represents its value, so watching them settle into ascending order visually shows how the algorithm compares and swaps elements step by step.
Is this useful for interview prep?
Yes — seeing how each algorithm actually moves elements helps build the intuition needed to explain time complexity and trade-offs in a technical interview.
How we compare
| Feature | Online Tool Store | Reading pseudocode | Whiteboard walkthrough |
|---|---|---|---|
| Visual step-by-step | Yes | No | Manual |
| No setup needed | Yes | N/A | N/A |
| Free to use | Yes | Free | Free |
For building intuition about how a sort actually works, this beats reading pseudocode alone.