Ask HN: Side projects that are making money, but you'd not talk about them?

This page summarizes the projects mentioned and recommended in the original post on

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  • BlueRetro

    Multiplayer Bluetooth controllers adapter for retro video game consoles

    I got my BlueRetro [1] project which is and universal BT controller adapter for retro console.

    I'm making a pretty bad job monetizing this TBH. I originally wanted to sell the HW myself but turn out that with real job + young family with the little energy and time left I can't do more than "here's the code".

    Turn out a few makers pick it up and are nice enough to give me a cut on their sales. Adding user donation I maybe made 2K out of it this year, not much but better than nothing I guess.

    I wrote a retrospective about the last three year working in this if you like more detail [2]



  • Pulumi

    Pulumi - Universal Infrastructure as Code. Your Cloud, Your Language, Your Way 🚀

  • SonarQube

    Static code analysis for 29 languages.. Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free.

  • DeepMenu

  • PDFEncrypt

    A C# application to encrypt existing PDF documents

    I built PDFEncrypt ( a couple years ago based on a very simple need from a client: to encrypt PDF files via a native Windows app, for free. I have been amazed at the number of visitors (4000/mo), emails, downloads, and donations the project has received. I released it as open source software, and I'm now working on V2 (almost done!) which is a complete rewrite based on user requests, as well as a bunch of new features. This has been a very fun side project and good practice coding in C#.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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