Alternatives
Products that do what Try out our real-world programming challenges does
For CodeSprint 2, we decided to introduce Real World Problems: programming problems that our CodeSprint companies face in real life. Real World Problems are messy, complicated, and infinitely variable. They require API calls, use of an arbitrary number of libraries, and a file structure that contains more than a single file upload. In short: Our existing code checking architecture is mostly useless. So we're writing a new one. Please help us test it. beta.interviewstreet.com
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2016 · codemade.io
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2021 · projectlovelace.net
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2017 · github.com
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Hey HN, I'm Aline, founder of interviewing.io and one of the authors of Beyond Cracking the Coding Interview (the official sequel to CTCI). We just compiled every problem (and solution) in the book and made them available for free. There are ~230 problems in total. Some of them are classics like n-queens, but almost all are new and not found in the original CTCI. You can read through the problems and solutions, or you work them with our AI Interviewer, which is also free. I'd recommend doing AI Interviewer before you read the solutions, but you can do it in whichever order you like. (When…
2025
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2017 · pybit.es
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Hey HN! I spent the last year building a programming challenges site targeted at intermediate/advanced programmers [1]. Challenges follow the "Build your own X" format, where you learn about a popular open source tool by building a small version yourself (popularized by this Github repo [2]). The primary difference compared to other coding challenge websites like Codecademy, HackerRank, Exercism etc. is that we offer real-world programming challenges - no inverting binary trees here! I've posted about this multiple times here before, but haven't managed to gather much interest. Trying…
2021
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Hello everyone, We just launched a side-project we have been building over the last couple of months -- Coderoulette is a pair programming game for developers, like a Chatroulette for hackers. We match developers in real time and give them coding challenges they have to solve doing pair programming using a collaborative IDE and video conference. You can check it out here: https://www.coderoulette.com/ We also published an article explaining how we built it. I'd love to hear your feedback.…
2016
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Hi HN, I’m here to show you a new codemod library. In case you’re not familiar with the term "codemod", here’s how it was originally defined AFAICT: > Codemod is a tool/library to assist you with large-scale codebase refactors Codemods are awesome, but I felt they were far from their potential, and so I’m very proud to show you all an early version of a codemod library we’ve built called Codemodder (https://codemodder.io) that we think moves the "field" forward. Codemodder supports both Python and Java (https://github.com/pixee/codemodder-python and…
2024 · codemodder.io
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Mar 2026 · github.com
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I review PRs all day and I've basically stopped reading them. Someone opens a 2000-line PR, I scroll, see it's mostly AI-generated React components, leave a comment, merge. I felt bad about it until I realized everyone on my team does the same thing. The problem is diffs are the wrong format. A PR might change how three buttons behave. Staring at green and red lines to understand that is crazy. The core reason we built this is that we feel that products today are built with assumptions from the past. 100x code with the same review systems means 100x human attention. Human attention cannot…
Feb 2026 · morphllm.com
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2022 · threedots.tech
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As a developer, one of the biggest obstacles I've encountered has been how to communicate with designers - especially, when it comes to constructing their designs. Over the years, I have come to realize that Designers and Developers just see the world differently - Developers see the world as defects in code text and Designers see the world as defects in pixels. This "language barrier" is what Redline (http://www.redline.cc) addresses -it allows Designers (or anyone really) to enter bugs visually and directly on the web page. Then, those mark-ups automatically creates a bug ticket in your…
2012
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2020 · medium.com
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