Trailmap Viewer - Free online map & GPX viewer with trail analytics for hikers

Hi Product Hunt community! 👋 I built Trailmap Viewer because I wanted a dead-simple, privacy-first way to inspect, edit, and analyze GPX tracks directly in the browser—without sign-ups, bulky software installs, or waiting for files to upload to a remote server. 🔹 Simple Track Editing & Cleanup: • Quick & Easy Adjustments: Perform simple edits right on the map—easily trim unwanted sections or tweak waypoints to clean up your recorded GPS logs. • Auto Elevation Backfill: Have a GPX track without elevation data? The app can automatically query and attach accurate elevation profiles directly from topographic map DEM data. 🔹 Detailed Trail & Track Analytics: • In-Depth Elevation & Grade Metrics: Inspect climbing vs. descending ratios, average gradients, and interactive elevation profiles. • Time & Pace Breakdown: Instantly see moving time, rest durations, and average speeds to truly understand your hike or run. 🔹 Cartography & Print Ready: • Topo Maps with Magnetic Declination Lines: View rich topographic maps complete with magnetic north lines for real-world navigation. • Printable Topo Maps: Cleanly export and print detailed topographic trail maps for paper backup in the backcountry. 🔹 Zero Barrier & 100% Client-Side: • Privacy-First: All GPX data is parsed strictly in your browser. Nothing is ever sent to or stored on a server. • Free & Frictionless: Zero account creation. Just drag and drop your GPX file and get instant results. Whether you're planning your next mountain trek, making quick edits to GPS tracks, printing backup maps, or analyzing a weekend run, I hope Trailmap Viewer becomes a handy tool in your outdoor kit. I’d love to hear your thoughts, feedback, or any features you'd like to see next! 🏔️