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Products that do what LeetCo does

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  1. 1LL

    2025 · github.com

  2. 2

    Your best LeetCode companion

    2024

  3. 3

    Use ChatGPT & GPT-4 on any website without copy-pasting

    2023

  4. 4
    Cmd J509

    Use ChatGPT via Cmd/Alt + J on any tab without copy-pasting

    2023

  5. 5

    Your favorite productivity apps in 1 click on any Chrome tab

    2023

  6. 6

    You write a standard solution, just like on LeetCode, and run it through the CLI. It identifies the problem by ID or title, executes your code against local test cases, and shows the result. It currently supports around 1.4k problems and multiple languages, including Python, C++, Rust, Java, Go, TypeScript, Swift, and others. The project is still an MVP. System design, SQL, and concurrency problems are not supported yet, but support for more problem types is planned. Made in Haskell!

    19d ago · github.com

  7. 7
    PlugThis448

    Create your own Chrome Extensions by chatting with AI

    Jul 2026 · plugthis.ai

  8. 8CA

    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

  9. 9LB
  10. 10

    Make engineering interviews look more like real work

    2023

  11. 11
    Linko3

    Chrome Extension to code together on LeetCode, in real time

    Jun 2026 · linkocollab.xyz

  12. 12SW

    Dec 2025 · github.com

  13. 13

    Display ChatGPT responses on search engines

    2022

  14. 14

    AI Mock Interviewer Chrome Extension for LeetCode

    Jan 2026 · leetduck.com

  15. 15LL

    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

  16. 16IM

    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

  17. 17
    Knowstory140

    AI search bar Chrome extension for developer docs

    2023

  18. 18

    Do LeetCode the comfy way.

    6d ago

  19. 19

    Find the code you need faster

    2021

  20. 20

    Monkeytype for LeetCode. Practice syntax, not just logic

    Nov 2025

  21. 21LB

    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

  22. 22

    Learn algorithms by watching them run

    Apr 2026 · tracecode.app

  23. 23

    Auto-commit every LeetCode submission to GitHub instantly

    May 2026 · chromewebstore.google.com

  24. 24

    Q&A knowledge base built into every app you use

    2021

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