Libraries · head to head
Leafmap vs Rollup
Leafmap
Libraries
Python package for interactive geospatial mapping and analysis inside Jupyter notebooks
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Leafmap it is a Python library rather than an application, so there is nothing to buy, nothing to install for a non-technical colleague and no interface outside a notebook environment.; Rollup slower than the Go and Rust bundlers that followed it, since it is written in JavaScript
- They diverge on capability: Leafmap covers Multiple mapping backends, Rollup covers Tree shaking.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Leafmap and Rollup actually diverge.
Identical on both: starting price (Free), pricing model (Open source, no licence fee), 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 Leafmap
- Multiple mapping backends
- Notebook interactivity
- Raster and COG support
- STAC catalogue access
- Earth Engine integration
- Basemap library
- Vector data handling
- Split map comparison
Only in Rollup
- Tree shaking
- Clean output
- Multiple output formats
- Plugin API
What people use each for
The jobs each tool is most often brought in to do.
Leafmap
- A remote sensing course where students need interactive maps without learning JavaScript or a desktop GISnot Rollup
- A researcher exploring STAC-hosted satellite imagery inside a notebook before committing to a processing pipelinenot Rollup
- An analyst producing a shareable interactive map from a GeoDataFrame in a handful of linesnot Rollup
- A team prototyping a geospatial visualisation before deciding whether to build it properly in a web frameworknot Rollup
Rollup
- Publishing a JavaScript library in several module formatsnot Leafmap
- Builds where output size and cleanliness matter more than build speednot Leafmap
- Producing ES module output for consumers who will bundle it themselvesnot Leafmap
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Leafmap
- It is a Python library rather than an application, so there is nothing to buy, nothing to install for a non-technical colleague and no interface outside a notebook environment.
- Maintenance rests largely on one academic maintainer with grant funding, which makes long-term continuity a real consideration for anything beyond research use.
- The API has moved quickly across releases, so notebooks written against an older version can break on upgrade, which undermines reproducibility in exactly the research settings where it is popular.
- It abstracts over several third-party backends, so a bug or a rendering limitation is often in ipyleaflet, folium or MapLibre rather than in Leafmap, and diagnosing it means understanding the layer underneath anyway.
- Large datasets rendered through notebook widgets become slow or unresponsive, so it does not scale to the data volumes a dedicated tiling service or desktop GIS handles comfortably.
Rollup
- Slower than the Go and Rust bundlers that followed it, since it is written in JavaScript
- Application concerns like dev servers and hot reloading are not its job, so app builds need Vite on top
- Configuration for non-trivial applications gets verbose compared with tools that assume more
Pricing, plan by plan
Leafmap
Free- LeafmapFree
- MIT licence
- Installed from PyPI or conda-forge
- No usage limits
Rollup
Free- RollupFree
- Full functionality
- Commercial use permitted
- Community support
Which should you pick?
Choose Leafmap if
- You need multiple mapping backends.
- You want to start without paying.
- You work on Linux, Windows, macOS.
- You also want notebook interactivity.
Choose Rollup if
- You need tree shaking.
- You want to start without paying.
- You work on Linux, macOS, Windows.
- You also want clean output.
Questions people ask
- Is Leafmap or Rollup better?
- Neither clearly leads. Leafmap starts at Free and Rollup at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Leafmap or Rollup?
- Leafmap starts at Free and Rollup at Free.
- Does Leafmap or Rollup run on more platforms?
- Leafmap runs on Linux, Windows, macOS. Rollup runs on Linux, macOS, Windows.
- Can I use Leafmap for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Leafmap best used for?
- Leafmap is most often used for a remote sensing course where students need interactive maps without learning javascript or a desktop gis, a researcher exploring stac-hosted satellite imagery inside a notebook before committing to a processing pipeline, an analyst producing a shareable interactive map from a geodataframe in a handful of lines, a team prototyping a geospatial visualisation before deciding whether to build it properly in a web framework. Of those, a remote sensing course where students need interactive maps without learning javascript or a desktop gis and a researcher exploring stac-hosted satellite imagery inside a notebook before committing to a processing pipeline are not what Rollup is typically brought in for.
- What can Leafmap do that Rollup cannot?
- Leafmap covers Multiple mapping backends, Notebook interactivity, Raster and COG support, STAC catalogue access. Rollup covers Tree shaking, Clean output, Multiple output formats, Plugin API.
Answered from the vendors’ own pages
Leafmap: Is Leafmap a product?
No. It is an MIT-licensed Python package installed from PyPI or conda-forge. There is nothing to purchase.
Rollup: Is Rollup free?
Yes, open source under the MIT licence.
Leafmap: Who maintains it?
Primarily Qiusheng Wu at the University of Tennessee, with community contributors, funded through research grants rather than sales.
Rollup: Rollup or webpack?
Rollup is the usual choice for libraries thanks to cleaner output and better tree shaking. webpack remains stronger for complex applications with heavy asset handling.
Leafmap: Can I buy support?
No commercial support offering exists. Help comes from GitHub issues and the community.
Rollup: Do I need Rollup if I use Vite?
Not directly. Vite uses Rollup for production builds, so you already benefit from it.
Leafmap: Is it suitable for a production web application?
It is not designed for that. Use it for analysis and prototyping, then build production maps on MapLibre, deck.gl or a hosted service.
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