Track your rides without tracking you.
No account. No cloud. No data collection.
One file. Your device. Your data.
Speed, distance, elevation gain, and route map — all updating in real time as you ride.
Watch your ride animate on the map with live speed, elevation, and a glowing trail. Like a drone following you — all on device.
Real-time wind speed with headwind/tailwind detection, current weather, precipitation forecasts, air quality, UV index, and sunrise/sunset.
Tells you which direction to start riding so you return with the wind at your back. Nobody else does this.
Plan routes by tapping waypoints on a map. Save them with cached tiles for offline riding. No internet needed on the road.
Estimated calories from rolling resistance, aero drag, wind, elevation, and bike type. Heart rate zones adjusted for your fitness level.
Context-aware nudges: milestone proximity, pace comparisons, PR detection, streak reminders. In English, Dutch, German, and French.
Live elevation sparkline during rides. Per-km or per-mile splits with fastest split highlighted. Pace tracking for every ride.
1080×1080 route image cards. GPX export per ride. CSV bulk export. Your data, always portable.
Sluip is a single HTML file that runs entirely in your browser. No servers, no accounts, no analytics, no cookies. Your ride data is stored in IndexedDB on your device and nowhere else.
Sluip is a Progressive Web App — it installs from your browser and works like a native app. No app store needed.
Navigate to the Sluip URL in Safari (not Chrome or other browsers — iOS only supports PWA install from Safari).
Tap the share icon (the square with an upward arrow) at the bottom of the Safari toolbar.
Scroll down in the share sheet and tap "Add to Home Screen". You can keep the name as "Sluip" or change it.
Tap "Add" in the top-right. Sluip will appear on your home screen with the wheel icon. It now runs fullscreen like a native app.
Navigate to the Sluip URL in Chrome (or any Chromium browser like Brave, Edge, etc.).
Chrome will usually show an "Install app" banner at the bottom of the screen. If you see it, just tap Install.
If no banner appears, tap the three-dot menu (⋮) in the top-right, then tap "Install app" or "Add to Home screen".
Tap "Install" in the dialog. Sluip will be added to your app drawer and home screen.
Navigate to the Sluip URL in a Chromium-based browser.
Look for the install icon (a monitor with a down arrow) in the address bar on the right side. Click it.
Click "Install" in the dialog. Sluip opens in its own window and can be launched from your desktop or taskbar.