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Master Kael
One LeetCode problem. One question at a time.
master kael is a tutor for making you understand leetcode questions by having an insightful conversation with the users. It asks one question at a time and keeps the statement plus about what you already know, until you reach the answer. Use it online, or run it on your own machine.
I made master kael because LeetCode kept putting me in the same loop.
I open a problem and do not know the first step. I look up the answer. It makes sense while I read it. Then I close the tab and I cannot write it again, or say why it works. The next problem feels new, even when it is the same idea: a hash map, a sliding window, a heap, a graph search.
If I ask a chatbot, it gives me the whole solution at once. Then I have nothing left to think through. master kael stays on one problem. It asks one question and waits. It keeps the statement and what I have already figured out, and it moves only when I do.
The app is Next.js and React, written in TypeScript. Lessons are in MongoDB. Sign-in is Google. Replies come from gpt-oss-20b, OpenAI’s free open-source model, on Groq.
App: https://master-kael.vercel.app/
Code: https://github.com/Arjun-A3/mast...
You can also run it locally. Clone the repo and follow the steps there.
Have you hit this loop too? Which problem was it?
About Master Kael on Product Hunt
“One LeetCode problem. One question at a time.”
Master Kael was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #53 on the daily leaderboard. master kael is a tutor for making you understand leetcode questions by having an insightful conversation with the users. It asks one question at a time and keeps the statement plus about what you already know, until you reach the answer. Use it online, or run it on your own machine.
On the analytics side, Master Kael competes within Hiring, User Experience, Education and GitHub — topics that collectively have 505.5k followers on Product Hunt. The dashboard above tracks how Master Kael performed against the three products that launched closest to it on the same day.
Who hunted Master Kael?
Master Kael was hunted by Arjun. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Master Kael including community comment highlights and product details, visit the product overview.
Arjun