LeetTracker is a Chrome extension designed to simplify the process of tracking solved LeetCode problems. With this extension, users can easily keep track of their notes and problem data in Google Sheets, and retrieve the information within the extension at any time.

When viewing any LeetCode problem, LeetTracker displays the problem data, including the title, difficulty, tags, and solve status, within a pop-up. Users can also submit a form to track time and space complexity, as well as general notes. This data is then uploaded to a Google Sheets spreadsheet, either as a new row entry or as an update to an existing row.

The extension offers several features, such as Light Mode/Dark Mode, the ability to reset the spreadsheet, and the option to add or delete custom tags. Users can also "star" problems for later review and track the latest attempt/solve date for each problem. LeetTracker smartly detects LeetCode tab problem data and automatically generates and formats Google Sheets for data storage.

It is important to note that LeetTracker is completely free and does not track or store data in any database. All API calls are made to Google APIs, and the extension only requests permission to upload, edit, and delete files within the user's Google Drive, read LeetCode tab data, and use browser storage for convenience. LeetTracker is not affiliated with LeetCode and is solely designed to enhance productivity on the site.