CodeTracer for LeetCode

Extension Developer Tools4 users

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Overview

Step-by-step visual execution tracer with inline annotations on LeetCode.

CodeTracer is an interactive visual execution tracer for LeetCode. Step through your Python3 solutions line-by-line directly on LeetCode with: - Real-time step-by-step playback controls (Play, Pause, Step Forward/Backward, Slider) - Inline code annotations showing evaluated expressions and variables at each step - Interactive N×N Matrix / 2D Grid visualizer for grid problems (BFS/DFS/DP) - Dynamic tracking of Dictionaries, HashMaps, Sets, and Lists 100% private and offline: Powered by a local WebAssembly Python runtime (Pyodide). No code or personal data ever leaves your browser.

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Details

Version
1.0.0
Updated
September 20, 2026
Flag concern
Size
5.5MiB
Languages
English
Developer
Email
wardahjabeen36@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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