A dark mode for OSM Liberty, the Mapbox GL basemap style for the OpenMapTiles schema.
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pathmapper 00ac0afb09
Merge pull request #89 from pathmapper/fix_town_hall
Fix townhall icon name to match vt source
3 years ago
.github/workflows Add new CI workflow using GitHub actions 3 years ago
demo Delete `.DS_Store`. 5 years ago
sprites Fix townhall icon name to match vt source 3 years ago
svgs Fix townhall icon name to match vt source 3 years ago
.gitignore Initial commit 7 years ago
LICENSE.md Add arrow to sprite 4 years ago
README.md Replace CI badge 3 years ago
_config.yml Move from lukasmartinelli/osm-liberty -> maputnik/osm-liberty 5 years ago
iconset.json Update sprites, inconset, SVGs 5 years ago
logo.png Add logo 7 years ago
maki_list.py Fix print statements 4 years ago
package-lock.json Update dependencies 3 years ago
package.json Update dependencies 3 years ago
style.json Add compatible OMT version to metadata 3 years ago
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OSM Liberty BSD licensed GitHub CI status

OSM Liberty

A free Mapbox GL basemap style for everyone with complete liberty to use and self host. OSM Liberty is a fork of OSM Bright based on free data sources with a mission for a clear good looking design for the everyday user. It is based on the vector tile schema of OpenMapTiles.

Preview OSM Liberty with Maputnik


You can use the style in your Mapbox GL maps.

By default, the vector tiles and glyphs are served from Maptiler Cloud and the raster tiles and sprites directly from GitHub. You would need to subscribe to Maptiler Cloud to get an access key and replace the placeholder {key} for the vector source and glyphs with your own key.

Another option is to create your own vector tiles with OpenMapTiles and host the tiles and assets yourself for complete liberty.

<!DOCTYPE html>
  <meta charset=utf-8 />
  <title>OSM Liberty</title>
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    body { margin:0; padding:0; }
    #map { position:absolute; top:0; bottom:0; width:100%; }
  <script src='https://api.mapbox.com/mapbox-gl-js/v1.10.1/mapbox-gl.js'></script>
  <link href='https://api.mapbox.com/mapbox-gl-js/v1.10.1/mapbox-gl.css' rel='stylesheet' />
  <div id='map'></div>
  var map = new mapboxgl.Map({
      container: 'map',
      style: 'https://maputnik.github.io/osm-liberty/style.json',
      center: [8.538961,47.372476],
      zoom: 5,
      hash: true

Data Sources

Map Design

The map design originates from OSM Bright but strives to reach a unobtrusive and clean design for everyday use. Colored relief shading from Natural Earth make the low zoom levels look good.

OSM Liberty Map demo

Edit the Style

You can edit the style directly online in Maputnik.

This style actually triggered the need for the development of Maputnik.

A pre-commit hook is included to validate and format the JSON styles using mapbox-gl-style-spec. To use, just install the NPM dev dependencies:

npm install

and then validate or format the style with

npm run validate
npm run format

Validation and reformatting will happen automatically on commit if you have the dependencies installed.

Icon Design

A Maki icon set using colors to distinguish between icon categories.

Maki is a living project and adds new icons over time, which means that there could be new icons that OSM Liberty could use for POIs. maki_list.py is a simple script to list both the names in OSM Liberty's iconset that don't map to any valid Maki name, and the Maki names that are not currently used in OSM Liberty's iconset. You can run the script with python3 maki_list.py.

Color Palette

Color Name Hex Value
Blue #5d60be
Light Blue #4898ff
Orange #d97200
Red #ba3827
Brown #725a50
Green #76a723

Modify Icons

  1. Take the iconset.json and import it to the Maki Editor.
  2. Apply your changes and download the icons in SVG format and the iconset in JSON format.
  3. Optional: Format the JSON with cat iconset.json | jq -MS '.' for better legibility.
  4. Add the SVG files from the folder svgs_not_in_iconset to the folder svgs downloaded from the Maki Editor. These are the SVGs for road shields, the dot used for city and town layers and the road area pattern which could not be modified using the Maki Editor. To modify these you could use e.g. Inkscape.
  5. Install spritezero-cli: npm install -g @mapbox/spritezero-cli
  6. Generate the low resolution sprite: spritezero osm-liberty ./svgs/
  7. Generate the high resolution sprite: spritezero --retina osm-liberty@2x ./svgs/

Have a look at ...