Algorithm Tools

Animated bubble sort with step controls, speed, custom input, live comparison/swap counters and pseudocode. Runs entirely in your browser.

Animated insertion sort with step controls, speed, custom input, live comparison/write counters and pseudocode. Runs in your browser.

Animated selection sort with step controls, speed, custom input, live comparison/swap counters and pseudocode. Runs in your browser.

Animated merge sort with step controls, speed, custom input, live comparison/write counters and pseudocode. Runs in your browser.

Animated quicksort with pivot/partition highlights, step controls, speed, custom input, live counters and pseudocode. Runs in your browser.

Animated heap sort with step controls, speed, custom input, live comparison/swap counters and pseudocode. Runs in your browser.

Animated binary search over a sorted array with target input, step controls, speed, live comparison counter and pseudocode. Runs in your browser.

Animated linear search with target input, step controls, speed, live comparison counter and pseudocode. Works on unsorted data. Runs in your browser.

Interactive Dijkstra pathfinding on a grid — draw walls, move start/goal, generate mazes, step through the search. Runs in your browser.

Interactive A* pathfinding on a grid with a Manhattan heuristic — draw walls, move start/goal, generate mazes, step through the search. Runs in your browser.

Interactive breadth-first search on a grid — draw walls, move start/goal, generate mazes, step through the level-by-level expansion. Runs in your browser.

Interactive depth-first search on a grid — draw walls, move start/goal, generate mazes, step through the deep-dive exploration. Runs in your browser.

Animated maze generator using recursive division — step through the wall carving, adjust speed, regenerate. Pairs with the pathfinding visualizers. Runs in your browser.

Interactive binary search tree — insert, search, delete with an animated tree, step controls and pseudocode. Runs in your browser.

Interactive binary max-heap — insert and extract-max with animated sift-up / sift-down, step controls and pseudocode. Runs in your browser.

Interactive LIFO stack — push and pop with an animated top pointer and step controls. Runs in your browser.

Interactive FIFO queue — enqueue and dequeue with animated front/rear pointers and step controls. Runs in your browser.

Interactive singly linked list — insert head/tail, search, delete with animated pointer traversal and step controls. Runs in your browser.

Interactive hash table with separate chaining — insert, search, delete with animated hashing and collision chaining. Runs in your browser.

Animated Sieve of Eratosthenes on a number grid — marks primes and crosses out composites, with step controls. Runs in your browser.

Animated Euclidean algorithm — compute the GCD of two numbers step by step with the (a, b) → (b, a mod b) reduction. Runs in your browser.

Animated prime factorization as a factor tree — splits a number into prime factors step by step. Runs in your browser.

Animated Collatz (3n+1) sequence as a line chart — watch the trajectory climb and fall to 1. Step controls. Runs in your browser.

Animated Fibonacci sequence — each term is the sum of the previous two, built iteratively with step controls. Runs in your browser.

Animated convex hull (Andrew’s monotone chain) on a plane of points — push/pop construction with step controls. Runs in your browser.

Animated polygon area with the shoelace formula — sums signed triangle areas with step controls. Runs in your browser.

Animated line segment intersection — cross-product orientation tests plus the exact crossing point, with step controls. Runs in your browser.

Animated recursive Tower of Hanoi solver — moves disks in the minimum 2ⁿ−1 steps with step controls. Runs in your browser.

Animated N-Queens backtracking on a chessboard — try, place, conflict, and backtrack with step controls. Runs in your browser.

Animated 0/1 knapsack dynamic programming — fills the DP table cell by cell, highlighting dependencies, with step controls. Runs in your browser.

Interactive Conway’s Game of Life — draw cells, play generations, step, randomize. Runs entirely in your browser.