Gipfelbuch.online is a hiking and mountain-tour platform featuring routes contributed by hiking guidebook authors and a broad selection of destinations across the Alps and beyond. Visitors can explore tours by region, activity, difficulty, distance, elevation gain, and estimated duration, with options ranging from family-friendly walks and year-round hikes to hut trips, multi-day routes, mountain biking, and via ferratas. The site highlights popular areas including Tegernsee, Mittenwald, Garmisch-Partenkirchen, the Canary Islands, and the Azores, and provides free GPX tracks for tours to use when planning outings.

Free registration lets users record hikes in a personal tour diary, add peaks or huts, and upload GPX files from completed trips. The platform displays routes and destinations on a hiking map and creates personalized statistics covering elevation gain, time, and distance. Users can also add destinations that are not yet listed. Alongside its route catalogue, Gipfelbuch.online publishes hiking and hut updates, destination inspiration, and practical planning resources, helping people discover outdoor adventures in different regions and seasons.