RideBuilder - Indoor Cycling Workout Builder

Fast workout builder for indoor cycling: build steps, connect your trainer, ride. Fully local, no cloud. RideBuilder — the fastest way from "I want to ride intervals today" to actually riding. No logins, no subscriptions, no cloud requirement. RideBuilder runs entirely locally in your browser and connects directly to your smart trainer over Bluetooth — that's it. What the app does: • Click workouts together in seconds: steady steps, ramps, free ride sections, repeat blocks for intervals • Direct ERG control of FTMS-compatible smart trainers (Bluetooth) • Heart rate strap support (standard BLE heart rate profile) • Zwift Click/Play/Ride handlebar controls • Export as a .zwo file for Zwift & compatible apps • Your own backup folder: optionally, your data is saved automatically to a folder of your choice on your computer — no account needed, and it works with your existing Dropbox, iCloud or Google Drive folder too Why local instead of cloud? Training data is personal. RideBuilder sends nothing to a server — not power data, not heart rate, not anything else. Everything stays on your device, and you decide whether and where to back it up. Requirements: Chrome or Edge (Web Bluetooth required) and an FTMS-capable smart trainer. A complete step-by-step guide is available right inside the app via "❓ Help".