Making productivity simple, free, and accessible to everyone. No downloads, no sign-ups, just tools that work.
Instant access to all tools. 100% free forever, with no hidden costs or premium tiers.
Most tools run entirely in your browser. Your data stays on your device, exactly where it belongs.
Fully responsive design that works perfectly on desktop, tablet, and mobile devices.
KoolToolz started as a simple idea: why are simple online utilities so cluttered with ads and pop-ups? We wanted to build a suite of digital tools that feel like well-crafted native apps right in your browser.
Whether you need to format JSON, calculate a date, or just kill time with a quick game of Snake, we've got you covered with a clean, distraction-free experience.