Supercharge Your LeetCode Practice With a Live AI Mock Interviewer
You’re grinding LeetCode. You’re building pattern recognition. You’re getting faster at sliding windows and DFS.
That work matters. It’s the foundation.
But there’s a second layer that LeetCode alone can’t train — performing the solve under interview conditions. Thinking out loud. Defending your approach. Recovering from a bug while someone watches. Managing your time when the clock is real.
Leetcode Mode on Intervu.dev lets you take any LeetCode problem you’re already working on and practice it with a live AI interviewer. Same problem, completely different skill set.
Same problem. Different practice.
Here’s what changes when you add an interviewer to the equation:
| 🏋️ LeetCode Solo | 🎯 LeetCode + Intervu Practice Mode |
|---|---|
| Solve in silence | ✅ Think out loud, explain your approach |
| Unlimited time | ✅ Timed session with natural pace pressure |
| Submit and check | ✅ Debug under observation, trace through examples |
| One feedback signal: pass/fail | ✅ Multi-dimensional: communication, design, code quality |
| No follow-up questions | ✅ Interviewer pushes back, asks “why not X?” |
You’re not replacing your LeetCode practice — you’re adding the interview layer on top of it.
How it works
1. Paste the problem you’re studying
Head to intervu.dev/leetcode, paste the LeetCode URL for whatever problem you’re currently working on, pick your language, and hit Start Interview.
2. AI generates the full interview setup
Our AI reads the problem, generates starter code for your chosen language, builds scaffolding helpers (like TreeNode and buildTree for tree problems), edge cases to question on, and prepares the interviewer context — all in about a minute.
3. Your mock interview begins
You’re dropped into a live session. The AI interviewer presents the problem, and you practice the full interview arc:
- Clarify — ask about constraints, edge cases, input bounds
- Design — explain your approach and its complexity; the interviewer pushes back if needed
- Code — write your solution with scaffolding auto-folded for focus
- Test — run against generated test cases, debug live, walk through examples
- Discuss — the interviewer evaluates your solution, process, and communication
The skills this unlocks
You already know how to solve the problem. Now train how to perform the solve:
Thinking out loud
The interviewer expects narration. If you go silent, they’ll prompt you — just like in a real interview. This builds the habit of externalizing your thought process, which is often worth more than the final answer.
Receiving hints gracefully
When you’re stuck, the AI gives graduated nudges — not spoilers. A subtle conceptual nudge first, then a moderate strategy suggestion, then a clear approach hint. Learning to take hints without panic is itself an interview skill.
Time-pressured debugging
You found a bug. The clock is ticking. The interviewer is watching. Can you trace through the logic calmly, isolate the issue, and fix it? That composure under pressure is something LeetCode’s green checkmark never tests.
Defending your design
“That’s O(N²) — can you do better?” You’ve seen this on LeetCode editorial comments. But can you respond to it live, pivot your approach, and articulate the tradeoff? Practice Mode forces you to.
Smart scaffolding that stays out of your way
For tree, linked list, and graph problems, you need helper code just to run a solution. Practice Mode auto-generates language-specific scaffolding — TreeNode, buildTree, ListNode, etc. — and auto-folds it in the editor.
You see the function signatures, but the implementation bodies are collapsed. It mirrors how a real interviewer would say: “Assume these helpers are available — focus on the algorithm.”
Your LeetCode list, your interview conditions
You’re not limited to a fixed problem set. Preparing from a specific LeetCode study plan? Import each problem. Your friend got asked a graph problem at Google? Paste the URL. Working through Blind 75 or Grind 75? Bring every problem into Practice Mode.
Your problems. Real interview conditions. Actual feedback.
How to get started
- Go to intervu.dev/leetcode
- Paste any LeetCode problem URL
- Choose your language (Python, JavaScript, TypeScript, Java, C++, Go)
- Click Start Interview
- AI generates everything in ~1-2 minutes
- Practice the full interview — clarify, design, code, test, discuss
No signup needed for guest mode. This feature is completely free — just paste and practice.
Your LeetCode grind deserves a better payoff
You’re already investing the hours. You’re building the algorithm muscle. That foundation is real.
Practice Mode makes sure that investment translates into interview performance — not just problem-solving ability.
LeetCode builds the skills. Intervu trains the performance.