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Alternatives

Products that do what A directory of open source alternatives to proprietary software does

Hi, Piotr here I was collecting nice open-source companies for quite some time now. Mostly to take some inspiration and learn from their code. Last week, I though it would be fun to learn this Astro thing everyone's talking about. So I thought building a directory website out of this collection was pretty good idea. After 2 days of building, OpenAlternative was born. It's a community driven list of open source alternatives to proprietary software and applications. Enjoy and thank you for your support!

  1. 1

    Discover open source alternatives to popular software

    2024

  2. 2

    Discover open source alternatives to popular SaaS software

    2025

  3. 3

    200+ open source alternatives to popular B2B tools

    2021 · btw.so

  4. 4

    Discover open source alternatives to your proprietary SaaS

    2022

  5. 5AD

    Hi guys, I want to share the recent project i developed. I built AlternateOSS, a directory of free, open source alternatives and competitors to popular software. Currently, i have listed 200+ tools so far and organized them carefully based on their main functionalities. I ranked them based on its category relevancy and feature completeness. Some technical details & features: - fully static site built with Astro - View Transition API for smooth navigation - Instant/static search with Astro static endpoints If you have an open source project that can be an alternative to popular software,…

    2024 · alternateoss.com

  6. 6IM

    A couple of years ago, I had an interesting idea. What if there was a marketplace where all the underlying tech was open-source? The order management system, the storefront, customer support, etc. The marketplace would simply connect to the seller’s infra instead of locking them in. If, for some reason, the seller is removed from the marketplace, their software stays with them and they can continue accepting orders directly. This model can be used to disrupt any marketplace from AirBNB to UberEats: building tech for home renters and restaurants and later, leveraging that to build a competing…

    2022 · openship.org

  7. 7OS

    hey makers, I've spent the whole night to compile this list out of > winners of Product Hunt > best dev tools on DevHunt > recently active on GitHub > most internet backlinks > most mentions as "alternative to .." Let me know if I should add anything there.

    2023 · osssoftware.org

  8. 8OS

    I got tired of collecting open source projects in my chrome bookmarks so I decided to compile a curated list of: - Recently active projects on GitHub - Mostly dev tools (but also productivity, analytics) - Projects which are "Alternative to X software" My bookmarks are finally empty:D If you have a great open source tool you use, I'd be glad to hear your suggestions. Also, any feedback is greatly appreciated.

    2025 · alternativeoss.com

  9. 9CL

    Hey people! I have been compiling a database of opensource alternatives and I'm super proud of it so far. It serves as a searchable directory for high-quality opensource. After tons of hours I've managed to compile a database of 1000+ opensource software. I've seen other sites which have the same premise and all the GitHub Awesome Lists, but they lack in showing if the repo is active, abandoned, experimental, buggy/unstable, has a restrictive license or corporate influence like this does. Thanks for your time, if you have any recommendations for features/additions I'd love to hear.

    Feb 2026 · opensrc.me

  10. 10OB
  11. 11

    Find open-source alternatives to commercial apps

    2020

  12. 12MN

    Hi guys, I've created an open source web builder framework (https://grapesjs.com) years ago, which I'm still maintaining, and now I'm excited to publish a side project based on it, Grapedrop (https://grapedrop.com). It's a simple web page builder which allows you to design and publish your web pages very quickly. The project is still in beta with a lot of stuff to improve but I'd really like to share it and hear what people think about it and maybe also get some constructive feedback.

    2018

  13. 13OS
  14. 14

    The best open-source alternatives for you next maker project

    2020

  15. 15IB

    Hey HN, I am proud to show you guys that I have built an open source alternative to Azure OpenAI services. Azure OpenAI services was born out of companies needing enhanced security and access control for using different GPT models. I want to build an OSS version of Azure OpenAI services that people could self host in their own infrastructure. "How can I track LLM spend per API key?" "Can I create a development OpenAI API key with limited access for Bob?" "Can I see my LLM spend breakdown by models and endpoints?" "Can I create 100 OpenAI API keys that my students could use in a classroom…

    2023 · github.com

  16. 16
    Sawia190

    Find trending open source projects to contribute to

    2019

  17. 17IB

    I work on R00M 101, a Reddit-based OSINT profiler. While building it, I realized most open-source intelligence (OSINT) tools are scattered across GitHub, outdated blog posts, or random Discords. So I put together a public-facing directory of 100+ OSINT tools used by analysts, journalists, and security folks, free, filterable, and categorized by risk, platform, and use case. The idea was to make something useful and no-friction. Built with static HTML + SQL backend + a lot of caffeine. Would love feedback on how to improve the UX or tool curation. If anyone wants to contribute tools or help…

    2025 · r00m101.com

  18. 18

    Free replacements for Slack, Notion, Figma & 60+ paid tools

    May 2026 · osalfinder.com

  19. 19GD

    Hey HN! We're Parth and Faza and we'd like to introduce you to Gitopia - https://gitopia.com/. Our vision with Gitopia is to create a decentralized platform for open-source code collaboration that is both resilient against censorship and promotes free exchange of ideas. To make this vision a reality, we've developed tools that foster community-led governance and incentivize active participation. Our journey into the open-source world started with Google Summer of Code, where we contributed to syslog-ng and GDAL, respectively. It was a transformative experience that truly…

    2023 · gitopia.com

  20. 20AA

    Hi HN, I have been messing around with WebRTC for a few years now but when it comes to the TURN server I never quite got to my gold standard of free, self-hosted and open source. I decided to give it a go using Oracle Cloud Infrastructure's free tier, meaning that my total spend got down to domain name hosting. I know plenty of people have been burnt by Oracle in the past, but I have had servers running on the free tier for 5 years now without so much as a hiccup. Regardless, the concepts will be the same using any cloud based server. This is the first time I've written up an end-to-end…

    2025 · github.com

  21. 21AD

    Hi, I'm software dev with 2x exit. I collected some affordable alternatives to expensive and well-known tools for a while. Mostly for personal use. Now I built the platform and added them here. Also, community help to grow with their tools and suggestions. Enjoy and if you have any alternative for popular softwares or have a suggestions please submit here to make it the internet's biggest alternative software platform.

    Nov 2025 · alterbase.co

  22. 22AO

    Hello HN! My name is Rémy and I recently published an astronomy dashboard where everything is open source: the code of the website, the framework it is based on and the library that computes astronomical data. For the last few years, I have been developing the Ruby library Astronoby (https://github.com/rhannequin/astronoby) with as much dedication and perseverance I could while I don't have any scientific academic background. My end goal was to use this library and build a website that not only provides as much data as possible, but let anyone access and understand how it…

    Nov 2025

  23. 23OO
  24. 24IV

    For the last several years I've been creating a ERP platform, Stockor. While I'm going to continue offering it as a SaaS, I've decided to also open-source it. I'm hopeful that by doing so it will: 1) Grow it into a Wordpress size juggernaut with a plugin for any business process under the sun. 2) Bring me interesting consulting gigs. The open-source site is at stockor.org. There's a demo up at stockor.com/demo as well. Looking forward to hearing HN's thoughts!

    2014

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