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Alternatives

Products that do what LeetDuck: LeetCode on Steroids does

AI Mock Interviewer Chrome Extension for LeetCode

  1. 1

    Make engineering interviews look more like real work

    2023

  2. 2CA

    I've long had a dislike for leetcode interviews on both sides of the coin. Project-based interviews can also be challenging because it can end up filtering out folks who don't want to spend several hours building something in their free time. I met up with a friend last year -- a very senior dev -- who had taken some time off to study leetcode exercises while preparing for FAANG interviews. It struck me that one of the key measures of whether a candidate is a fit for a team is rather synthetic. CodeRev.app is a simple, lightweight tool that helps teams evaluate candidates using code reviews.…

    2024 · coderev.app

  3. 3

    Turn any job on LinkedIn into a mock interview instantly

    2025

  4. 4
    Leo14

    Your 24/7 Mock Coding Interviewer

    Oct 2025

  5. 5IM

    As you solve LeetCode questions, you can mark them as hard, medium, or easy. The tool will then recommend questions you should review based on (1) how hard the question was for you and (2) how much time has passed since you last reviewed it. I'd recommend normally attempting LeetCode problems and just marking them as hard, medium, or easy for you at first so the tool knows which problems to recommend you review! Here's the theory behind spaced repetition and learning if interested: https://www.codecademy.com/article/spaced-repetition

    2024 · lanki.xyz

  6. 6LL

    Hey HN — we’re University of Waterloo grads, and we’re building LeetPro (https://tryleetpro.com). LeetPro is Leetcode but for soft skill-based questions and cases. In other words a platform designed to help you nail behavioral, product, and case-based interviews just like Leetcode does for technical interviews. We’re combining AI-driven mock interviews with community-driven content to create a comprehensive preparation tool for systems design, product, and business interviews. We came up with this idea just last week, and we've already launched an MVP that’s worth checking out if…

    2024

  7. 7LB

    Howdy friends! Tell me if this is an atrociously terrible idea - I've been working on building a leetcode for clientside devs so we can practice React and Javascript interview questions in a more concise way, I call it clientside.dev I just finished a beta version of it yesterday and plan on releasing it with many more problems on Jan 1st but it's there if you wanna play with it open to any ideas / feedback however mean or nice it may be :)

    2022 · vacation-call-335691.framer.app

  8. 8

    Your best LeetCode companion

    2024

  9. 9

    The AI copilot built specifically for LeetCode interviews

    Jan 2026

  10. 10
    LeetCo5

    See LeetCode company-wise questions — no Premium needed

    Jan 2026 · github.com

  11. 11

    Leetcode together

    Nov 2025

  12. 12

    Learn algorithms by watching them run

    Apr 2026 · tracecode.app

  13. 13

    Practice mock interview to perfect tech job interview

    2018

  14. 14

    Addictive game for passing tech interviews

    Nov 2025

  15. 15

    The AI Companion That Crush Your LeetCode Interview.

    Jan 2026

  16. 16

    Do LeetCode the comfy way.

    6d ago

  17. 17SA

    Gx HN, We built SharpSkill in order to add another angle for the technical interviews' process. Just a Leetcode Alternative to give other insights.

    May 2026 · sharpskill.dev

  18. 18

    LeetCode for quant finance interviews

    Jun 2026 · leetquant.tech

  19. 19

    Solve leetcode problems together

    Nov 2025

  20. 20

    Auto-commit every LeetCode submission to GitHub instantly

    May 2026 · chromewebstore.google.com

  21. 21TA
  22. 22PF

    I've been blown away by speech-to-speech LLMs lately and was looking for a fun little website to build. Enter mock YC interviews. When I first applied to YC, I used iPG (https://jamescun.github.io/iPG/) to practice and get comfortable with the YC-style interview. Spoiler: I ended up getting in. This took me a few hours to go from scratch to production. Would highly suggest playing around with some of the latest products (this uses Vapi.ai/elevenlabs.io)

    2024 · mock-yc.vercel.app

  23. 23IB

    Hey HN, Check out our technical paper here: https://arxiv.org/abs/2501.15627 and the video demo: https://www.youtube.com/watch?v=Op8hyLW7Z84 I’ve been obsessed with the art of the interview since I was in college. In my career I interviewed over 100 people and was interviewed from tech companies from startups to big tech and hedge funds. I built Neuraprep because I noticed something missing — while software engineers have leetcode.com and finance folks have quantquestions.com, other engineering domains (like ML, data science, MLOps) don’t have a go-to…

    2025 · neuraprep.com

  24. 24

    AI + Human-Powered Mock Interviews Online

    Oct 2025

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