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Create a static image of a map with the features you want


Version published
Yearly downloads
decreased by-56.01%

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Openstreetmap static maps is a nodejs lib, CLI and server open source inspired on google static map service

Here you have a demo. Also a dynamic version of the demo, for testing purposes.

(heroku demo might be unstable because of too many requests being made to it, a real server costs money and we are not collecting any for this project yet)

How to use

1. CLI

sudo npm i -g osm-static-maps osmsm --help osmsm -g '{"type":"Point","coordinates":[-105.01621,39.57422]}' > map.png
  • note: if you have this error trying to install globally Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/osm-static-maps/node_modules/puppeteer/.local-chromium', it's caused by this pupeteer issue https://github.com/puppeteer/puppeteer/issues/367, you can workaround by installing globally with the unsafe-perm flag:
sudo npm i -g osm-static-maps --unsafe-perm=true

2. nodejs library

npm install osm-static-maps // index.js old school osmsm = require('osm-static-maps'); osmsm({geojson: geojson}) .then(function(imageBinaryBuffer) { ... }) .catch(function(error) { ... }) // index.js modern style (also supports typescript) import osmsm from 'osm-static-maps' const imageBinaryBuffer = await osmsm({geojson})

3. Standalone sample server

sudo npm i -g osm-static-maps osmsm serve

Or you can use docker-compose

git clone git@github.com:jperelli/osm-static-maps.git cd osm-static-maps docker-compose up

4. Cloud service

You can use the heroku-hosted alternative directly here

heroku server might be unstable because of too many requests being made to it, a real server costs money and we are not collecting any for this project yet.

API Reference

All parameters have a short and long version. The short version can be used only with the shell CLI. The long version can be used with the library and can be passed to the app server as GET query params, or POST json body (remember to set the header Content-Type: application/json)

ParameterDescriptionDefault Value
ggeojsongeojson object to be rendered in the mapundefined
fgeojsonfilefilename or url to read geojson data from (use '-' to read from stdin on CLI)undefined
Hheightheight in pixels of the returned img600
Wwidthheight in pixels of the returned img800
ccentercenter of the map lon,lat floats string(center of the geojson) or '-57.9524339,-34.921779'
zzoomzoomlevel of the leaflet mapif vectorserverUrl available, use 12 else 20
ZmaxZoommax zoomlevel of the leaflet map17
Aattributionattribution legend'osm-static-maps / © OpenStreetMap contributors'
ttileserverUrlurl of a tileserver'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png'
mvectorserverUrlurl of a vector tile server (MVT style.json)undefined
MvectorserverTokentoken of the vector tile server (MVT)'no-token'
DrenderToHtmlreturns html of the webpage containing the map (instead of a binary image)false
Ftypeformat of the image returned ('jpeg'/'png')'png'
qqualityquality of the image returned (0-100, only for jpg)100
ximageminenable lossless compression with optipng / jpegtranfalse
Xoxipngenable losslsess compression with oxipngfalse
aarrowsrender arrows to show the direction of linestringsfalse
sscaleenable render a scale ruler (boolean or a json options object)false
Ttimeoutmiliseconds until page load throws timeout20000
kmarkerIconOptionsset marker icon options (a json options object) *see noteundefined (leaflet's default marker)
Sstylestyle to apply to each feature (a json options object) *see noteundefined (leaflet's default)
ehaltOnConsoleErrorthrow error if there is any console.error(...) when rendering the map imagefalse
  • Note on markerIconOptions: it's also accepted a markerIconOptions attribute in the geojson feature, for example {"type":"Point","coordinates":[-105.01621,39.57422],"markerIconOptions":{"iconUrl":"https://leafletjs.com/examples/custom-icons/leaf-red.png"}}

  • Note on style: it's also accepted a pathOptions attribute in the geojson feature, for example {"type":"Polygon","coordinates":[[[-56.698,-36.413],[-56.716,-36.348],[-56.739,-36.311]]],"pathOptions":{"color":"#FF5555"}} (also remember that the # char needs to be passed as %23 if you are using GET params)

Design considerations & architecture

Read the blogpost on the creation of this library and how it works internally


  • GPLv2


Specially to the contributors of

  • OpenStreetMap
  • Leaflet
  • Puppeteer
  • ExpressJS
  • Handlebars


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