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An accelerating proxy for web map services

Project description

MapProxy is an open source proxy for geospatial data. It caches, accelerates and transforms data from existing map services and serves any desktop or web GIS client.

MapProxy is a tile cache, but also offers many new and innovative features like full support for WMS clients.

MapProxy is actively developed and supported by Omniscale, it is released under the Apache Software License 2.0, runs on Unix/Linux and Windows and is easy to install and to configure.

Go to for more information.

The documentation is available at:


1.1.2 2011-07-06


  • compatibility with older PyYAML versions
  • do not try to transform tiled=true requests
  • escape Windows path in wsgi-app template

1.1.1 2011-06-26


  • add back transparent option for mapnik/tile sources (in addition to image.transparent)
  • keep alpha channel when handling image.transparent_color
  • fixed combining of multiple WMS layers with transparent_color
  • fixed header parsing for MapServer CGI source

1.1.0 2011-06-01


  • Changed license to Apache Software License 2.0


  • fixed image quantization for non-png images with globals.image.paletted=True

1.1.0rc1 2011-05-26


  • add template to build MapProxy .deb package
  • font dir is now configurable with globals.image.font_dir


  • fixed errors in config spec

1.1.0b2 2011-05-19


  • unified logging
  • verify mapproxy/seed configurations

1.1.0b1 2011-05-12


  • support for tagged WMS source names: wms:lyr1,lyr2
  • new Mapserver source type
  • new Mapnik source type
  • new mapproxy-util command
  • include development server (mapproxy-util serve-develop)
  • first WMTS implementation (KVP)
  • configurable image formats
  • support for ArcGIS tile sources (/L09/R00000005/C0000000d)
  • support for bbox parameter for tile sources


  • tweaked watermarks on transparent images
  • [mapproxy-seed] initialize MapProxy logging before seeding
  • authentication callbacks get environ and qusery_extent
  • authentication callbacks can force HTTP 401 returns
  • hide error tracebacks from YAML parser
  • support for multipolygons in coverages
  • add support for HTTP_X_SCRIPT_NAME
  • support for integer images (e.g. 16bit grayscale PNG)


  • fixes demo on Windows (loaded static content from wrong path)
  • fixed one-off error with grid.max_res: last resolution is now < max_res e.g. min_res: 1000 max_res: 300 -> now [1000, 500], before [1000, 500, 250]
  • add workaround for Python bug #4606 (segfaults during projection on 64bit systems)
  • do not add attribution to WMS-C responses


  • removed Paste dependencies
  • removed deprecated mapproxy-cleanup tool, feature included in mapproxy-seed

1.0.0 2011-03-03

  • no changes since 1.0.0rc1

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