About Curio

Curio is a growing collection of small browser games and everyday tools. The idea is simple: things that are genuinely useful or genuinely fun, that load instantly, and that do not ask you for anything first.

How it works

Everything here runs entirely inside your browser. There is no account to create, nothing to install, and no server doing the work. When you use a tool that takes a file or some text, that data is processed on your own device and never uploaded anywhere.

Scores, preferences and settings are saved in your browser's local storage, which means they stay on the device you used and are never visible to us.

Why it is free

The site is paid for by advertising. The deal we are trying to keep is a reasonable one: ads sit below or beside the content, never inside a game or a tool, never as a pop-up, and never as something you have to dismiss to continue. If an ad on this site ever gets in your way, that is a bug — pleasetell us about it.

What is coming

New games and tools are added regularly. If there is something you would find useful, or a game you would like to see done properly, suggestions are genuinely welcome.