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Maps · head to head

Leaflet vs Trailforks

Leaflet logo

Leaflet

Maps

Leading open-source JavaScript library for mobile-friendly interactive maps, used by millions of developers worldwide

From
Free
Rated
-
Full reviewWebsite
Trailforks logo

Trailforks

Maps

Mountain-bike-specific trail database and navigation app owned by Outside Inc

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Leaflet 2D only with no support for 3D features, tilt, or rotation; Trailforks the free tier only allows one offline region downloaded at a time, which is limiting for a rider visiting multiple trail areas.
  • They diverge on capability: Leaflet covers Core Functionality, Trailforks covers Mountain bike trail database.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Leaflet and Trailforks actually diverge.

Attributes where Leaflet and Trailforks differ
AttributeLeafletTrailforks
Pricing modelUnknownFreemium, standalone Pro or bundled with Outside+
PlatformsWebiOS, Android, Web

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Maps).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Leaflet

  • Core Functionality
  • User Interface

Only in Trailforks

  • Mountain bike trail database
  • Community trail reports
  • Offline maps
  • Premium basemaps
  • Heatmap overlay
  • Weather and fire overlays

What people use each for

The jobs each tool is most often brought in to do.

Leaflet

  • Embedding interactive maps in a web pagenot Trailforks
  • Mobile-friendly map interfaces across desktop and mobile browsersnot Trailforks
  • Mapping where bundle size matters, at roughly 42 KB of JavaScriptnot Trailforks
  • Extending a basic map with plugins rather than adopting a full platformnot Trailforks

Trailforks

  • A mountain biker planning a ride on unfamiliar singletrack who needs direction-of-travel and difficulty datanot Leaflet
  • Someone riding in an area with no signal who needs an offline downloaded trail mapnot Leaflet
  • A rider checking recent community trail condition reports before heading outnot Leaflet
  • Someone comparing several mountain bike regions using the usage heatmap before choosing where to ridenot Leaflet

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Leaflet

  • 2D only with no support for 3D features, tilt, or rotation
  • Performance degrades when rendering large datasets of complex vector geometries without optimization
  • Limited dynamic styling support; style is fixed on the server when using raster tiles
  • Lacks native support for WMS features; requires plugins like Leaflet.WMS and complex feature identification is cumbersome
  • Requires external tile service for map imagery; does not provide map tiles natively

Trailforks

  • The free tier only allows one offline region downloaded at a time, which is limiting for a rider visiting multiple trail areas.
  • Pro pricing appears to be shifting toward bundling with the wider Outside+ media subscription, making the standalone price less stable and worth checking directly before buying.
  • Its focus on mountain biking means it is a weaker choice than Ride with GPS for road or gravel route planning.
  • Trail data quality depends on community contribution, so newer or less-ridden regions can have sparse or outdated information.
  • Being owned by a media company with a broader outdoor content bundle strategy introduces some uncertainty about how the standalone app product is prioritised long term.

Pricing, plan by plan

Leaflet

Free

No published plan breakdown. See the Leaflet review.

Trailforks

Free
  • Trailforks FreeFree
    • Trail database access
    • Basic basemaps
    • One offline region at a time
  • Trailforks Pro$undefined/year
    • Unlimited offline regions
    • Premium basemaps including Gaia and ArcGIS satellite
    • Heatmap, weather and fire overlays

Which should you pick?

Choose Leaflet if

  • You need core functionality.
  • You want to start without paying.
  • You also want user interface.
Leaflet review

Choose Trailforks if

  • You need mountain bike trail database.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want community trail reports.
Trailforks review

Questions people ask

Is Leaflet or Trailforks better?
Neither clearly leads. Leaflet starts at Free and Trailforks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Leaflet or Trailforks?
Leaflet starts at Free and Trailforks at Free.
Does Leaflet or Trailforks run on more platforms?
Leaflet runs on Web. Trailforks runs on iOS, Android, Web.
Can I use Leaflet for free?
Both have a free tier, so you can try either at no cost before committing.
What is Leaflet best used for?
Leaflet is most often used for embedding interactive maps in a web page, mobile-friendly map interfaces across desktop and mobile browsers, mapping where bundle size matters, at roughly 42 kb of javascript, extending a basic map with plugins rather than adopting a full platform. Of those, embedding interactive maps in a web page and mobile-friendly map interfaces across desktop and mobile browsers are not what Trailforks is typically brought in for.
What can Leaflet do that Trailforks cannot?
Leaflet covers Core Functionality, User Interface. Trailforks covers Mountain bike trail database, Community trail reports, Offline maps, Premium basemaps.

Answered from the vendors’ own pages

Leaflet: Is Leaflet free and open source?

Yes. Leaflet is open-source JavaScript library licensed for free use. Over 400 plugins add capabilities like marker clustering, heatmaps, drawing tools, geocoding, and routing.

Source
Trailforks: Is Trailforks free?

A free tier exists with trail data and one offline region at a time; Pro removes that limit and adds premium map layers.

Leaflet: How do I include Leaflet in my project via CDN?

Leaflet is available on multiple free CDNs including unpkg, cdnjs, and jsDelivr. Include the CSS stylesheet from https://unpkg.com/[email protected]/dist/leaflet.css and JavaScript from https://unpkg.com/[email protected]/dist/leaflet.js in your HTML head.

Source
Trailforks: Who owns Trailforks?

Outside Inc, which also owns Pinkbike and CyclingTips, acquired it in 2021.

Leaflet: What mapping services does Leaflet support?

Leaflet integrates seamlessly with various mapping services including OpenStreetMap, Google Maps, Bing, and other custom tile providers, allowing developers to choose the best base layer.

Source
Trailforks: Is it only for mountain biking?

Mountain biking is the core focus, though it has secondary support for hiking, gravel and motorised trail use.

Leaflet: What is the file size of Leaflet?

Leaflet weighs about 42 KB of JavaScript.

Source
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