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Maps · head to head

Lonboard vs Trailforks

Lonboard logo

Lonboard

Maps

Python map rendering in Jupyter that skips GeoJSON and moves millions of features without choking

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: Lonboard it is a notebook visualisation library, not a mapping application, so there is no editing, no layout, no map export for print and no sharing beyond distributing the notebook or an HTML file; 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: Lonboard covers GeoArrow binary transfer, 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 Lonboard and Trailforks actually diverge.

Attributes where Lonboard and Trailforks differ
AttributeLonboardTrailforks
Pricing modelOpen source, no licence feeFreemium, standalone Pro or bundled with Outside+
PlatformsLinux, macOS, WindowsiOS, 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 Lonboard

  • GeoArrow binary transfer
  • GeoPandas input
  • deck.gl layers
  • Jupyter widget
  • Large dataset handling
  • Styling by attribute
  • Open source licence

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.

Lonboard

  • An analyst exploring a national road or parcel dataset in a notebook where pydeck or ipyleaflet becomes unusable at that sizenot Trailforks
  • A researcher publishing a reproducible analysis where the visualisation must run from the same script as the processingnot Trailforks
  • A data scientist joining spatial data to model outputs in pandas and needing to see the result immediately without exporting to a GISnot Trailforks
  • A team building an internal analysis pipeline on GeoParquet that wants rendering without a serialisation step in the middlenot Trailforks

Trailforks

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

Where each one falls short

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

Lonboard

  • It is a notebook visualisation library, not a mapping application, so there is no editing, no layout, no map export for print and no sharing beyond distributing the notebook or an HTML file
  • Maintenance sits with Development Seed as an open source side output of a consultancy, so roadmap priorities follow client projects and there is no support contract to buy
  • Layer coverage is a subset of deck.gl, so an analyst needing a less common layer type has to drop to pydeck or write JavaScript rather than staying in Python
  • It expects data already in GeoPandas or Arrow form, which means the performance benefit depends on the rest of your pipeline being Arrow-friendly; reading a large Shapefile is still the slow step
  • Rendering happens in the browser, so very large datasets are ultimately limited by the client machine's memory and GPU rather than by the server, and a laptop will still fail on data a workstation handles

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

Lonboard

Free
  • LonboardFree
    • Open source, no licence fee
    • No usage limits
    • Installed from PyPI or conda

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 Lonboard if

  • You need geoarrow binary transfer.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want geopandas input.
Lonboard 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 Lonboard or Trailforks better?
Neither clearly leads. Lonboard 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, Lonboard or Trailforks?
Lonboard starts at Free and Trailforks at Free.
Does Lonboard or Trailforks run on more platforms?
Lonboard runs on Linux, macOS, Windows. Trailforks runs on iOS, Android, Web.
Can I use Lonboard for free?
Both have a free tier, so you can try either at no cost before committing.
What is Lonboard best used for?
Lonboard is most often used for an analyst exploring a national road or parcel dataset in a notebook where pydeck or ipyleaflet becomes unusable at that size, a researcher publishing a reproducible analysis where the visualisation must run from the same script as the processing, a data scientist joining spatial data to model outputs in pandas and needing to see the result immediately without exporting to a gis, a team building an internal analysis pipeline on geoparquet that wants rendering without a serialisation step in the middle. Of those, an analyst exploring a national road or parcel dataset in a notebook where pydeck or ipyleaflet becomes unusable at that size and a researcher publishing a reproducible analysis where the visualisation must run from the same script as the processing are not what Trailforks is typically brought in for.
What can Lonboard do that Trailforks cannot?
Lonboard covers GeoArrow binary transfer, GeoPandas input, deck.gl layers, Jupyter widget. Trailforks covers Mountain bike trail database, Community trail reports, Offline maps, Premium basemaps.

Answered from the vendors’ own pages

Lonboard: Why not just use pydeck?

pydeck serialises geometry to GeoJSON to reach the browser. Lonboard uses a binary GeoArrow pipeline, which is the reason it handles far larger datasets in the same notebook.

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.

Lonboard: Who maintains it?

Development Seed, a geospatial engineering consultancy, as an open source project. There is no commercial support offering.

Trailforks: Who owns Trailforks?

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

Lonboard: Does it work outside Jupyter?

It is built as a Jupyter widget. Exporting to standalone HTML is possible, but the intended environment is a notebook.

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.

Lonboard: Is it free for commercial use?

Yes, it is open source with no licence fee.

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