Hi Product Hunt! 👋 I’m a huge advocate for "vibe coding"—getting into that deep, frictionless flow state where you're building at the speed of thought alongside your AI tools. But there is one thing that constantly shatters my flow: needing a quick unit conversion and having to tab out to a bloated, slow, ad-heavy calculator site that takes three seconds to load. I got so annoyed by the lag breaking my momentum that I decided to vibe-code my own solution. The goal was simple: build a web utility that feels as instantaneous as a modern IDE. The result is QuickConvertUnits. It runs entirely on a local-first architecture, meaning there are zero server round-trips for the math. We built a "Live-Math" engine so the numbers convert in real-time with every single keystroke you make. It is heavily cached, aggressively fast, and designed with a clean UI to get you your answer and get you back to your flow state immediately. I would love to hear your feedback on the speed and the interface, and feel free to drop a comment if there are any specific developer or layout conversions you want to see added to the engine. Happy building!

QuickConvert Units

Free and Instant unit conversions

Free and Instant unit conversions