I made an offline-ready hiking trail companion app
Hi HN! This is a trail companion web app (think AllTrails) I hacked together in a couple weeks time. I was inspired to create this project while training for an extended backpacking trip. My motivation was to create a UI tailored exactly to my liking, and to be able to track my progress along the trail without draining my battery. I also wanted to experiment with PWA technologies. I successfully used it on my five day adventure along the Knobstone Trail in southern Indiana, and even though it's web-based it hardly consumed any battery life on my old first-gen Pixel XL. It's set up currently…
In plain words
This is a web-based hiking trail companion app built as a progressive web app that works offline. It displays trail maps and tracks user progress while consuming minimal battery power, making it suitable for extended backpacking trips. The app currently supports individual trails configured via GPX files and was tested on a multi-day hike in Indiana. It is released as open source for developers to adapt as a template for their own trail projects.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN! This is a trail companion web app (think AllTrails) I hacked together in a couple weeks time. I was inspired to create this project while training for an extended backpacking trip. My motivation was to create a UI tailored exactly to my liking, and to be able to track my progress along the trail without draining my battery. I also wanted to experiment with PWA technologies. I successfully used it on my five day adventure along the Knobstone Trail in southern Indiana, and even though it's web-based it hardly consumed any battery life on my old first-gen Pixel XL. It's set up currently to support a single trail, where the trail and trail markers are deployed with the rest of the app. So it's single-use in that way. For future trips, I can simply swap out the GPX files and deploy. I am releasing it with an open source license in case anyone wants to use it as a boilerplate to create their own.
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