Open Apps

What it does

Curated open-source apps for every task, vetted for quality and performance by a seasoned technologist. Find free, open-source alternatives to the tools you rely on without the SaaS price tag.

Curated open-source apps for every task. Find free alternatives to expensive SaaS tools, vetted for quality and performance.

Every alternative gets three independent scores — repo health, technical quality, dependency risk — not a vendor's pitch or a star count. Every app and package scored the same way — deterministic, disclosed, and repeatable. Deterministic, pulled straight from GitHub — activity, maintenance, community, maturity, momentum. No opinions, just data. A second, independent read — architecture, code quality, innovation, how hard it is to learn. Scored separately, so one bad metric can't hide behind the other. What the app depends on gets scored too — staleness, footprint, known vulnerabilities via OSV.dev. An app inherits every dependency'sfrom openapps.pro

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  Open Source Alternatives2021 · btw.so · ▲804

  200+ open source alternatives to popular B2B tools

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  Open Source Alternative To2022 · opensourcealternative.to · ▲377

  Discover open source alternatives to your proprietary SaaS

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  Opensource Builders2020 · opensource.builders · ▲491

  Hey everyone, A couple years ago, I got into programming and fell down the rabbit hole of open-source software. I started realizing a lot of the commercial software I used had open-source alternatives. In 2020, those alternatives were good but not perfect replacements. With LLMs entering the scene, there are even more open-source alternatives now and they're narrowing the gap between proprietary options. LLMs also got me thinking: will people continue using proprietary or opensource applications in the future when they can build their own personal application tailored specifically for their…

• OS
  Open-source alternatives to tools You pay for2023 · osssoftware.org · ▲245

  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.

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  Open Source Tools Stack!2022 · cherryyadvendu.gumroad.com · ▲73

  Top 50+ open source tools to build your brand

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  Awesome Open-Source Alternatives2022 · ▲47

  GitHub list of open-source alternatives to well-known SaaS

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  /dev/null▲491

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲460

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 21h ago · github.com

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  Lovable▲1,477

  Hey HN! Previous CERN physicist turned hacker here. We've developed a way to make AI coding actually work by systematically identifying and fixing places where LLMs typically fail in full-stack development. Today we're launching as Lovable (previously gptengineer.app) since it's such a big change. The problem? AI writing code typically make small mistakes and then get stuck. Those who tried know the frustration. We fixed most of this by mapping out where LLMs fail in full-stack dev and engineering around those pitfalls with prompt chains. Thanks to this, in all comparisons I found with: v0,…

  AI · 2024 · lovable.dev

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  Superchat▲1,427

  AI Agents for WhatsApp Business, Instagram & Co

  Growth · 2024 · superchat.com

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  Postiz▲1,188

  Streamline your social media with Postiz. Schedule posts, analyze performance, and manage all accounts in one place.

  Dev tools · 2024 · postiz.com

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  I built a(nother) house optimized for LAN parties▲1,117

  I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…

  Dev tools · 2024 · lanparty.house

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  Raycast Notes▲1,058

  Unlock a new level productivity with AI, Cloud Sync and more

  Work · 2024 · raycast.com

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  Cap▲1,047

  Beautiful screen recordings, owned by you. 100% open source.

  Dev tools · 2024 · cap.so