Stop memorizing.
Start visualizing.
An interactive sandbox engine showing dynamic memory traces, line execution maps, and variables layouts in real-time.
Visualize classic algorithms across Arrays, Two Pointers, Sliding Window, DP, Trees, and Graphs.
Toggle code tabs to view and run execution models in JavaScript, C++, and Java simultaneously.
Control pacing, step backward, edit custom inputs, and watch variables update live on trace memory maps.
Interactive code sandboxComing Soon
Don't just study theory. Run industry-grade algorithmic structures in our embedded sub-millisecond sandboxed environment.
DheetCode Sandbox Engine
Run custom code, test assertions, and visualize memory boundaries in our upcoming premium execution sandbox.
// Optimize spatial rotation of matrix layers in-place
function rotateMatrix(matrix) {const n = matrix.length;
for (let i = 0; i < Math.floor(n / 2); i++) { for (let j = i; j < n - 1 - i; j++) {let temp = matrix[i][j];
matrix[i][j] = matrix[n - 1 - j][i];
matrix[n - 1 - j][i] = matrix[n - 1 - i][n - 1 - j];
matrix[n - 1 - i][n - 1 - j] = matrix[j][n - 1 - i];
matrix[j][n - 1 - i] = temp;
}
}
return matrix;
}
Explore 17 structured problem directories
Explore classics grouped by pattern structures. Select any category card to dynamically list all visualizable problems on DheetCode.
Arrays & Hashing
Problem Index & Navigation
Visualize Directly on LeetCode
Supercharge your DSA prep. Solve problems directly on LeetCode and see the visual animations side-by-side inside your editor sidebar.
DheetCode Companion
v1.0.0 • Manifest V3Our lightweight, secure companion Chrome extension adds the full interactive visualizer to your LeetCode problem pages as a sidebar panel.
How to Install (Chrome / Brave / Edge)
- Download & Extract: Click the download button to save
dheetcode-companion.zipand unzip it to a folder. - Open Extensions Settings: Open a new tab, type
chrome://extensions, and press Enter. - Enable Developer Mode: Toggle the switch in the top-right corner to turn on Developer Mode.
- Load Unpacked Extension: Click Load unpacked in the top-left, select the extracted folder, and start solving on LeetCode!
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