Is FreeCAD or Lonboard better?

Neither clearly leads. FreeCAD starts at Free and Lonboard at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, FreeCAD or Lonboard?

FreeCAD starts at Free and Lonboard at Free.

Does FreeCAD or Lonboard run on more platforms?

FreeCAD runs on Windows, macOS, Linux. Lonboard runs on Linux, macOS, Windows.

Can I use FreeCAD for free?

Both have a free tier, so you can try either at no cost before committing.

What is FreeCAD best used for?

FreeCAD is most often used for mechanical engineering design, architectural modelling, product design and prototyping, cam/cnc path generation. Of those, mechanical engineering design and architectural modelling are not what Lonboard is typically brought in for.

What can FreeCAD do that Lonboard cannot?

FreeCAD covers Parametric modeling, Part design, Assembly, Drafting. Lonboard covers GeoArrow binary transfer, GeoPandas input, deck.gl layers, Jupyter widget.

CAD · head to head

FreeCAD vs Lonboard

FreeCAD

CAD

Open-source parametric 3D CAD modeler

From: Free
Rated: -

Full review Website

Lonboard

Maps

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

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: FreeCAD no pricing published; product is completely free and open-source; 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
They diverge on capability: FreeCAD covers Parametric modeling, Lonboard covers GeoArrow binary transfer.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which FreeCAD and Lonboard actually diverge.

Attributes where FreeCAD and Lonboard differ
Attribute	FreeCAD	Lonboard
Pricing model	open-source	Open source, no licence fee
Platforms	Windows, macOS, Linux	Linux, macOS, Windows
Category	CAD	Maps
Founded	2002	Unknown

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

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 FreeCAD

Parametric modeling
Part design
Assembly
Drafting
FEM simulation
Path/CAM
Architecture
BIM

Only in Lonboard

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

What people use each for

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

FreeCAD

Mechanical engineering designnot Lonboard
Architectural modellingnot Lonboard
Product design and prototypingnot Lonboard
CAM/CNC path generationnot Lonboard

Lonboard

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

Where each one falls short

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

FreeCAD

No pricing published; product is completely free and open-source
Donations are optional and voluntary for project support

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

Pricing, plan by plan

FreeCAD

Free

No published plan breakdown. See the FreeCAD review.

Lonboard

Free

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

Which should you pick?

Choose FreeCAD if

You need parametric modeling.
You want to start without paying.
You work on Windows, macOS, Linux.
You also want part design.

FreeCAD review

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

Questions people ask

Is FreeCAD or Lonboard better?: Neither clearly leads. FreeCAD starts at Free and Lonboard at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FreeCAD or Lonboard?: FreeCAD starts at Free and Lonboard at Free.
Does FreeCAD or Lonboard run on more platforms?: FreeCAD runs on Windows, macOS, Linux. Lonboard runs on Linux, macOS, Windows.
Can I use FreeCAD for free?: Both have a free tier, so you can try either at no cost before committing.
What is FreeCAD best used for?: FreeCAD is most often used for mechanical engineering design, architectural modelling, product design and prototyping, cam/cnc path generation. Of those, mechanical engineering design and architectural modelling are not what Lonboard is typically brought in for.
What can FreeCAD do that Lonboard cannot?: FreeCAD covers Parametric modeling, Part design, Assembly, Drafting. Lonboard covers GeoArrow binary transfer, GeoPandas input, deck.gl layers, Jupyter widget.

Answered from the vendors’ own pages

FreeCAD: How much does FreeCAD cost?

FreeCAD is completely free with no licensing fees, vendor lock-in, sign-up requirements, paywalls, or restrictions. The software is open-source and available for anyone to use and adapt.

Source

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.

FreeCAD: Does FreeCAD offer optional support or sponsorship?

FreeCAD accepts voluntary donations to support the project. Sponsorship tiers range from $1 per month (Normal Sponsor) to $200 per month (Gold Sponsor), with different visibility levels. One-time donations of any amount are also accepted.

Source

Lonboard: Who maintains it?

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

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.

Lonboard: Is it free for commercial use?

Yes, it is open source with no licence fee.

FreeCAD vs Lonboard

FreeCAD

Lonboard

The short version

Where they differ

What each one covers

Only in FreeCAD

Only in Lonboard

What people use each for

FreeCAD

Lonboard

Where each one falls short

FreeCAD

Lonboard

Pricing, plan by plan

FreeCAD

Lonboard

Which should you pick?

Choose FreeCAD if

Choose Lonboard if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on FreeCAD

More on Lonboard

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