# tilemill-project/tilemill

TileMill is a modern map design studio

Repository: https://github.com/tilemill-project/tilemill
Canonical: https://ross.abutalabs.com/products/tilemill
Homepage: https://tilemill-project.github.io/tilemill/
Language: JavaScript
License: BSD-3-Clause
License Family: permissive
Topics: tilemill, mapbox, mapnik, osm, openstreetmap
Last push: 2023-11-05T18:10:50+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5903, "days_push": 1032, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3152, forks 519 (observed 2026-08-28T04:07:46.210979+00:00)

## What it is
TileMill is an open-source map design studio powered by Node.js and Mapnik, used to style and render custom maps. It runs in server mode with a browser-based interface and can be deployed via Docker.

## Use cases
- design custom styled maps
- render map tiles from OpenStreetMap data
- style maps with CartoCSS
- create basemaps for web applications
- export maps for print or web

## When to choose
- you need a dedicated studio for designing map styles with Mapnik
- you want to render custom tile sets from OSM or PostGIS data
- you prefer a browser-based map design workflow

## When to avoid
- you need native desktop packages or Windows support
- you want actively developed modern tooling (consider Mapbox Studio or QGIS)
- you cannot pin to legacy Node.js 8.x versions

## Facets
- artifact type: application
- maturity: maintenance
- function: data-visualization, gui, image-processing
- domain: web-development
- platform: browser
- tags: cartography, map-design, mapnik, mapbox, tile-rendering, openstreetmap, gis, browser-ui, maps, geospatial, linux, macos, nodejs, docker, web-server

## Member repositories
- tilemill-project/tilemill (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:46.210979+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:25:41.863264+00:00, confidence not recorded.
  - readme: https://github.com/tilemill-project/tilemill (fetched 2026-08-28T04:07:46.210979+00:00, sha c610c9a19a83)
  - homepage: https://tilemill-project.github.io/tilemill/ (fetched 2026-08-29T09:40:34.430217+00:00, sha 269fbed2efa3)
- Data as of 2026-08-30T08:39:29.467469+00:00.