According to AlphaMoat, as of 2026-06, the Chrome extension Marble has 1,000 users (-50% MoM), rated 5 (23 reviews) — ranked #1,531 of 10,567 AI browser extensions, and #108 of 593 in Education.
AI-powered interactive walkthroughs for any leetcode problem
AI-powered interactive walkthroughs for any leetcode problem Marble adds an AI-powered tutor on top of leetcode for any problem in any language. The tutor allows for interactive walkthroughs which promote a deep understanding of leetcode patterns. **The walkthroughs involve**: 1. Understanding the problem 2. Creating a plan 3. Implementing the plan by coding it This process is very similar to what technical interviewers want to see in your thinking process. - - - - - How does it work? Open a leetcode problem, then click on the circle pin to start the interactive walkthrough. Email me with any questions or feedback: miguel@opencode.so
| Month | Users | MoM |
|---|---|---|
| 2026-03 | 2,000 | — |
| 2026-04 | 2,000 | +0.0% |
| 2026-05 | 2,000 | +0.0% |
| 2026-06 | 1,000 | -50.0% |
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Data month: 2026-06 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.