WattFactory turns your smart trainer into a full indoor cycling experience — ride real-world routes with gradient resistance or follow structured ERG workouts, all from your browser. No app install required.
WattFactory works directly in your browser using Web Bluetooth and Web USB — connect your trainer in seconds and start riding.
Plan a real-world cycling route and ride it virtually. Your trainer automatically adjusts resistance to match the gradient — climb the Alps from your living room.
Follow structured power-based workouts. In ERG mode your trainer locks to the target wattage so you focus entirely on the effort, not the resistance dial.
Power, cadence, speed, heart rate, W/kg and gradient — all displayed in real time. Physics-based speed simulation keeps everything accurate.
Every session is saved automatically. Review your stats, analyse your power and heart rate data, and export GPX or FIT files to Strava or Garmin Connect.
Set your personal HR zones and see exactly how much time you spent in each zone after every ride or workout — right in the post-session summary.
Connect via Bluetooth FTMS or ANT+ FE-C with a USB dongle. Supports heart rate monitors over ANT+ too — no proprietary software required.
Sign up in seconds — no credit card needed. Set your weight, FTP and heart rate zones to personalise your experience.
Open WattFactory in Chrome or Edge, click Connect, and pair your smart trainer over Bluetooth or ANT+. Done in under a minute.
Pick a real-world route or a structured workout and start pedalling. WattFactory handles the resistance — you just ride.
Start for free. Upgrade when you're ready.
Perfect for trying WattFactory out or occasional indoor sessions.
For riders who train regularly and want the full WattFactory experience.