Pixel WattsStart free →
Nothing to install

Indoor cycling in the browser

Nearly every trainer app wants a program on your machine first. Pixel Watts does not: open a browser, pair the trainer over Bluetooth, ride. This is not a stopgap or a cut-down version but the whole app — the Mac and iPad apps are the same thing in a shell.

Pixel Watts running in a browser window: the view over the handlebars onto a coastal road at sunset, the bike computer centre frame reading 180 watts and 24.9 km/h.
That is a browser tab. No download, no installation, no admin rights.

How it goes

  1. Open app.pixelwatts.com in Chrome or Edge — on a computer or an iPad.
  2. Hit “Pair” and pick your trainer; the browser asks once for Bluetooth permission.
  3. Pedal briefly so the trainer transmits — then the connection is up.
  4. Ride. One stage works with no account at all.

What you need

  • Chrome or Edge. Both speak Web Bluetooth, which is the technology behind the pairing.
  • A smart trainer with Bluetooth (FTMS). Practically any machine from the last few years by Wahoo, Tacx, Garmin, Elite or Xplova.
  • Nothing else. No ANT+ dongle, no installation, no admin rights on the machine.

Where the limits are — honestly

  • Safari and Firefox cannot do it. Neither supports Web Bluetooth. On a Mac there is the Mac app for that, on an iPad the iPad app — both pair natively.
  • On a phone it gets tight. A phone screen is too small for this game; we would rather say so than pretend everything works everywhere.
  • The tab has to stay in front. Put the browser in the background and the computer stops drawing it — the ride stands still until you come back.

Why this matters to us

Because the hurdle before the first ride decides whether there is one. A download is a decision you postpone: download first, then install, then an account, then maybe ride. A link is not a decision. Anyone who wants to know whether indoor cycling as a game is for them should be able to find out in two minutes, not twenty.

Start free →Try it first — no account

The demo stage rides without an account — open a browser and go.