Autark

A Serverless Toolkit for Prototyping Urban Visual Analytics Systems

Load, process, and visualize geospatial data entirely in the browser

Urbane rebuilt with Autark — Urbane, a multi-resolution urban visual analytics system, rebuilt with Autark: OpenStreetMap data, sky exposure computed on the GPU, neighborhood and building views, and linked charts.

Autark is a serverless toolkit for prototyping urban visual analytics systems. It loads, processes, and visualizes geospatial data entirely in the browser, through four packages:

autk-db: run geospatial queries in the browser, compatible with OpenStreetMap, GeoJSON, GeoTIFF, and CSV.
autk-map: render 2D and 3D maps using WebGPU, handling map layers directly on the canvas without a tile server.
autk-compute: run custom analytical tasks on GeoJSON datasets, processing feature sets without a backend.
autk-plot: render interactive D3.js charts for urban datasets, linked to the map for coordinated views.

Autark can also be used through a grammar, autk-grammar. Documentation, examples and a gallery are at autarkjs.org.

Publications

Autark: A Serverless Toolkit for Prototyping Urban Visual Analytics Systems

Lucas Alexandre, João Rulff, Talisson Souza, Gustavo Moreira, Daniel de Oliveira, Claudio Silva, Fabio Miranda, Marcos Lage

arXiv preprint, 2026

arXiv Code

How to cite

BibTeX

@misc{alexandre2026autark,
  title = {Autark: A Serverless Toolkit for Prototyping Urban Visual Analytics Systems},
  author = {Lucas Alexandre and João Rulff and Talisson Souza and Gustavo Moreira and Daniel de Oliveira and Claudio Silva and Fabio Miranda and Marcos Lage},
  year = {2026},
  eprint = {2604.20759},
  archiveprefix = {arXiv}
}