To be honest, the reason was simple — I couldn’t find a good tool that met my needs. In daily development work, I frequently need various small utilities: calculating file hashes, converting timestamps, formatting JSON, generating UUIDs, and so on. Initially, I relied on online tools, but they always came with frustrations: Slow loading times — waiting forever for a simple page to open Incomplete functionality — either missing features I needed or hiding them in obscure corners Annoying ads everywhere — one wrong click and you’re redirected somewhere unexpected Poor UI design — using them felt like a chore rather than a pleasure Then I tried desktop applications, but they had their own issues: Poor performance, especially with large files — noticeable lag and freezing Single-purpose tools — needing to install dozens of separate apps that take up space Outdated interfaces — designs stuck in the aesthetic of a decade ago Limited free versions — key features locked behind paywalls that didn’t seem worth the price Ultimately, there was no tool that simply felt good to use. Since I couldn’t find one, I decided to build my own.

Kairoa

A clean, intuitive and cross-platform desktop developer tool

A clean, intuitive and cross-platform desktop developer tool