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MassMapper Enhancements and Bugfixes

MassMapper is an interactive on-line map for Massachusetts. In July 2025 a number of enhancements and fixes were released.
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Overview

MassMapper logo

MassMapper is MassGIS's flagship interactive map to be used in a web browser.. Use MassMapper to access virtually all MassGIS map layers and to view descriptive information about the features on the map.

In July 2025 MassMapper contains several new enhancements and bug fixes.

MassMapper Enhancements

  • New data download option: DXF (AutoCAD version 14) (.dxf)
  • New data download option: GeoPackage (.gpkg)
  • New data download option: GeoJSON (.json)
  • New data download option: Shapefile in NAD83 MA State Plane feet projection (EPSG 2249)
  • New drawing option: Ability to draw lines of different types and thicknesses
  • New drawing option: Ability to draw points of different types and sizes 
  • New drawing option: Ability to add text of different fonts and types 
  • New Permalink URL option to zoom directly to a parcel (add ?locid=)
  • Ability to add a buffer circle of various colors and sizes

  • Ability to copy out coordinates of various types

MassMapper Small Changes

  • When a basemap is made fully transparent the background now white (instead of grey)
  • Legend swatches now bigger to allow for better view of area symbology patterns
  • Added a date to the PDF 
  • Made the default column width wider so that field names are less frequently cut off
  • Reordered the parcel columns so that more frequently used columns(id numbers and address) can be seen without scrolling
  • Made the "Search for a layer" box open at all times for easier viewing (previously was a small magnifying glass when closed)
  • Lengthy legend text was cut off.  A horizonal scroll bar was added in this case
  • Adjusted the buttons display on the identify results window so they are not touching when the window is toggled smaller.
  • For the Measure tool, made the dropdown unit type wider so text description not cut off.
  • Condensed the download display options so no scrolling is needed.
  • Added more decimals to Degrees Minutes Seconds (DMS) coordinates display (from 3 to 6)
  • Changed "SP Meters" and "SP Feet" in coordinate display to State Plane for clarity
  • Capitalized dd (Decimal Degrees) and dms (Degrees Minutes Seconds)
  • Reversed the latitude/longitude coordinate display to be longitude/latitude to match input order of coordinates to "Enter a location" box
  • Changed the Identify Results window label from "Identify Results" to "Identify Results (use scroll bars on right to see all layers/features)"

  • Enhance Google Analytics to collect not only datalayers added, but basemaps used, tools used and data downloaded

MassMapper Fixes

  • Color choices offered for "Customize Layer Settings" were not consistent with colors that were drawn on the map. 
  • When file download output name had spaces an error occurred - now spaces are automatically replaced with underscores for the output file name.
  • When the datalayer search bar was open but the user scrolled down the list of folders/layers and tried to add a layer, the folder area jumped back up to the open search bar.

  • After a feature selection, typing a 6 in the "Enter a location" box would cause the map to zoom out.

MassMapper Data Additions

As datalayers are added to the MassGIS catalog they are also added to MassMapper. Below are some layers that have been added in recent months:

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