About This Site

What we make

We build tools for those moments when you need something quickly but installing an app is a hassle: instrument practice, quick calculations, short games. Each piece of content lives on its own page, together with a written guide that explains how to use it and how it works.

The first piece is a guitar practice metronome. It supports time signatures, subdivisions and a tempo trainer, so you can go from slow, careful practice to gradual speed-building on a single screen.

Our principles

• It must work instantly, with no install and no account.
• All calculation and sound playback happen inside your browser. The values you enter are never sent to our server.
• It must be comfortable to use on a phone, so every page is responsive.
• We do not just drop a widget on a page. We explain how to use it and why it works the way it does.

Ads and operation

To cover running costs, the site may show Google AdSense ads. Ads are placed away from the main controls of each tool. See the Privacy Policy for details about advertising.

Send feedback

For bug reports or ideas for new tools, please follow the instructions on the Contact page.