KnockKnock!

Hey Product Hunt 👋 I’m Ham (@HamKarami) and for the past 12 months I’ve been building KnockKnock on evenings and weekends. Developers quoted me over $50K to build something like this, but with ChatGPT and a lot of vibecoding (being a prompt mule hurts), I was able to prototype, iterate, and actually ship it myself. I did do a code audit with some "real" human developers to get it ready for prod, so no denying that! What it is: KnockKnock is a free video-calling app for close friends and even closer colleagues. It’s not Zoom, it’s not Meet, and it’s definitely not another meeting tool. It’s about creating tiny, intentional moments of connection — especially for high-performing teams or tight-knit groups of friends who don’t want to get sucked into long calls. The rules are simple: Strictly 5-minute video calls (you can’t go longer) A clean, non-intrusive UI that gets out of your way Smart handling of calls behind the scenes (built with Firebase + LiveKit, plus custom logic to handle permissions, call teardown, retries, etc.) And today I’m most excited to launch Themes — customizable backlight rings and images around your video that make every call feel personal. For the old folks in the room, if you remember windows media players custom skins, I get mad nostalgia vibes from the UI experience in KnockKnock. Theming was a big lift technically for me, but the result feels delightful. Every time I demo it to a friend, I always look for their smile and it never lets me down. Its about time someone built something like this and I feel like it has been missing from my life for too long. Anyways, I hope you enjoy it as much as I do. Going forward, I will be looking to add a Theme store with even more drip. I will work with an animation company to build some pretty cool ones that I have in mind. Who knows maybe even license a few with some movies and brands that I like. Looking forward to your feedback!

Reminds me of Around and Multi/Remotion. I’m fine with opinionated software but I’d consider not forcing five and five.

I loved it ever since I started beta testing it. It has come a long way since and getting better and better every update. Ham has been passionately working on Knock Knock for while and I am glad to see the grand opening too. Way to go 🥳🚀