Welcome to Kajac's tools.

In here you will find small tools I develop, mainly for myself. Feel free to download them. As with anything I make, you use them at your own risk.


A time calculator to calculate duration, time to decimal (and vice versa), and adding time together. Now updated for macOS Big Sur.

macOS 10.10+ (x64) version 1.6.6

Windows 7+ (x86) version 1.6.6

Linux (x64) version 1.6.2


A small desktop countdown widget to countdown to a specific date and time in the future. Fully customizable. Now updated for Windows 11 and Apple Silicon.

macOS 10.11+ (x64) version 1.2.2

macOS 10.11+ (Apple Silicon) version 1.2.2

Windows 7+ (x86) version 1.2.11

Linux (x64) version 1.2.5

Also check out my other software here.