Free hiking maps.
Built by everyone.
Discover trails, navigate offline, and help improve the map for the global community.
How it worksExplore the entire region
Zoom out and see all interconnected trail systems in one continuous map.
Free Forever
No subscriptions, no premium paywalls. All trail data and features are free to use, and always will be.
Open Data
Built on OpenStreetMap. Every improvement you make helps the entire world's mapping ecosystem.
Community Powered
Join thousands of hikers mapping trails, sharing photos, and updating conditions in real time.
Popular trails near you
View allMuir Woods Loop
Mill Valley, CA
Skyline Ridge Trail
La Honda, CA
Purisima Creek Explorer
Woodside, CA
Edgewood Inner Loop via Old Stage Road
Redwood City, CA
Create your own routes
Can't find the perfect trail? Let our AI generate a custom route for you based on real paths and your specific preferences.
How the system grows
OpenTrails is powered by hikers like you. Your contributions keep the data fresh and free for everyone.
Track a hike
Record your movement even when offline.
Upload photos
Help others see the trail before they go.
Leave a review
Share conditions and parking tips.
Fix map data
Correct markers and path alignments.
Earn points and badges for your contributions. Start contributing
Go further, offline.
Our mobile app provides full GPS navigation and topographic maps that work anywhere—no cell service required.
- Battery-efficient tracking
- High-res topographic layers
- Real-time rerouting
A truly open ecosystem
We don't just use open data; we contribute back to it. OpenTrails is a part of the global knowledge commons.