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The ASP.NET Core Maps Library is a geographical data visualization tool for rendering maps from GeoJSON data or other map providers like OpenStreetMap, Google Maps, Bing Maps, etc. Its rich feature set includes markers, labels, bubbles, navigation lines, legends, tooltips, zooming, panning, drill down, and more

Why choose Syncfusion ASP.NET Core Maps Library?

ASP.NET Core Maps customization

Easy to customize

To visualize a geometric shape in SVG format in Maps, you can bind GeoJSON data to it. It’s light and simple to read. You can render a world map or a U.S. map and alter it with the ASP.NET Core Maps control’s built-in options to achieve the required layout.

ASP.NET Core Maps geospatial imaging

Geospatial imaging services

Works with services like Google Maps, Bing maps and OpenStreetMap to view satellite, aerial, and street maps by locating map data quickly without the use of any external shape inputs.

ASP.NET Core Maps marker and bubbles

Markers and bubbles

Markers are notes on maps that indicate specific latitude and longitude points using symbols. Bubbles are used to convey additional information about shapes such as population density and land area. Circle and square bubbles are available.

ASP.NET Core Maps multilayers

Multiple geometric layers

A Map with several geometric layers in a single view can be generated with sub layers. You can render the geographic elements of a country, such as rivers and valleys, as a sublayer. Each layer can be drilled.

ASP.NET Core Maps adaptive layout

Adapts to any resolution

Maps has a highly responsive layout and an optimized design for desktops, touchscreens, and smart phones. It works well on all mobile phones that use iOS, Android, or Windows OS.

ASP.NET Core Maps projection

Custom projections

The ASP.NET Core Maps component supports Mercator, rectangular, Miller, Eckert3, Eckert5, Eckert6, and Winkel3 projections.

ASP.NET Core Maps zooming

Zooming and panning

Zooming and panning in ASP.NET Core Maps are fast. Zoom the map by scrolling the mouse wheel, clicking the shapes, or using the zooming toolbar. Pan the map to navigate among regions easily.

ASP.NET Core Maps globalization

Globalization and localization

An Internalization library is used to globalize number, date, and time values in Maps. All the strings used in the Maps user interface can be localized by users as needed. Localizing UI strings involves using the localization (l10n) library.

ASP.NET Core Maps Code Example

Easily get started with ASP.NET Core Maps using a few simple lines of CSHTML and C# code, as demonstrated below. Also explore our ASP.NET Core Maps Example that shows you how to render the maps in ASP.NET Core.

    var data = new[] {
       new {Country= "China", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "United States", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "United Kingdom", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Germany", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Italy", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "India", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Australia", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Japan", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "France", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Russia", Membership= "Permanent", Color= "#feb24c" },
       new {Country= "Kazakhstan", Membership= "Non-Permanent", Color= "#f03b20" },
       new {Country= "Poland", Membership= "Non-Permanent", Color= "#f03b20" },
       new {Country= "Sweden", Membership= "Non-Permanent", Color= "#f03b20" },
       new {Country= "South Africa", Membership= "Non-Permanent", Color= "#f03b20" }

@using Syncfusion.EJ2.Maps;
<ejs-maps id="maps">
        <e-maps-layer shapeData="ViewBag.worldmap" shapeDataPath="Country" shapePropertyPath='new[] { "name" }' dataSource="data">
            <e-layersettings-shapesettings colorValuePath="Color" fill='#E5E5E5'></e-layersettings-shapesettings>
using ApplicationName.Models;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace ApplicationName.Controllers
    public class HomeController : Controller
        public IActionResult Index()
            ViewBag.worldmap = GetWorldMap();
            return View();
        public object GetWorldMap()
            string allText = System.IO.File.ReadAllText("./wwwroot/WorldMap.json");
            return JsonConvert.DeserializeObject(allText);

GeoJSON layer

Bind GeoJSON data to the maps to render any geometric shape in SVG (Scalable Vector Graphics) for data visualization of shapes. For example, render the world map or US map and customize it to the desired look using built-in options in the ASP.NET Core Maps component. Add any number of layers to the maps.

ASP.NET Core Maps Library Bind GeoJSON data

ASP.NET Core Maps is rendered with geometry type over OSM map

Geometry types

GeoJSON data contains geometry objects with properties such as geometry types and coordinates. The geometry types are the values present in the geometry objects of the GeoJSON data that specify the type of shape to be rendered, along with the coordinates that help to draw the shape’s boundary line. Polygon, MultiPolygon, LineString, MultiLineString, Point, MultiPoint, and GeometryCollection are the supported geometry types.

Geo-imagery visuals

Built-in support for external geospatial imagery services, such as Bing Maps and OpenStreetMap, is used to visualize satellite, aerial, and street maps, or other kinds of imagery tiles without any external shape inputs. Apart from Bing Maps and OpenStreetMap, users can also render maps from various map providers, for example, Google Maps Tile API, TomTom, Mapbox, Esri’s ArcGIS, etc. By using these external services, map data can be located easily.

ASP.NET Core Maps Library Geo imagery visuals

ASP.NET Core Maps with multiple layers


Using sublayer, an ASP.NET Core Map can be created with multiple geometric layers in a single view. For example, render additional geographic features of a country such as rivers, valleys, and more as sublayer. You can also drill each layer.


Denote a place with symbols or mark messages at the desired latitude and longitude on a map using markers. For example, indicate a particular place on the US map using a balloon marker shape. Also, place any HTML element as a marker and add multiple markers to the map.

ASP.NET Core Maps with multiple markers

ASP.NET Core Maps is rendered with marker clustering option

Marker clustering

Display multiple markers in the same location by clustering the markers overlapping one another. For example, use markers to indicate the top 50 cities in the world. If a marker overlaps another, it will be clustered, and the total number of markers will be displayed over the cluster.

Data labels

Data labels on the ASP.NET Core Map provide identification for the shapes by displaying their names. Trim or hide the labels at intersections with other labels and when they exceed shape bounds.

ASP.NET Core Maps with data labels

Multiple bubbles rendered in ASP.NET Core Map


Create a simple ASP.NET Core Map with bubbles to represent additional information about shapes such as population density, land area, and more. Bubbles are rendered with various magnitudes and colors based on the underlying data values of the shape.

Denote flight routes or ship routes on a geographic map between two places. These connector lines link points on a map and can also be curved.

ASP.NET Core Maps is rendered with navigation lines

Color mapping

Categorize the shapes on a map by customizing their color based on the underlying values. The ASP.NET Core Maps component supports three types of color mapping: range color mapping, equal color mapping and desaturation color mapping.

Range color mapping is applied for the shapes in ASP.NET Core Maps

Range color mapping

Apply colors to the shapes by comparing their values with a desired numeric range. For example, apply colors to the states in the US based on population density.

Equal color mapping is applied for the shapes in ASP.NET Core Maps

Equal color mapping

Differentiate a shape’s fill based on its underlying values and colors, using equal color mapping. For example, apply colors to the states in the US based on a winning candidate.

Desaturation color mapping is applied for the shapes in ASP.NET Core Maps

Desaturation color mapping

Change the opacity of the shapes by comparing their values with a desired numeric range. Minimum and maximum opacity of the shapes can be customized.

Desaturation color mapping with multiple colors are applied for the shapes in ASP.NET Core Maps

Desaturation with multiple colors

Apply multiple colors to the shape from a gradient by comparing their values with a desired numeric range. Any number of colors can be specified for creating the gradient.


Legends provide valuable information for interpreting the map with various colors, shapes, or other identifiers based on data and application needs. Interactive ASP.NET Core Map component supports two types of legends: Default and Interactive.

ASP.NET Core Maps is rendered with default legend items


A map with a legend contains swatches of symbols with descriptions to denote the categories of shapes.

ASP.NET Core Map is rendered with interactive legend


Use a map with an interactive legend to find the range of an underlying shape’s value on mouse hover.

Zooming and panning

Zoom the ASP.NET Core Map for close-up analysis by pinching the map, scrolling the mouse wheel, clicking the shapes, or by using zooming toolbar; and pan the map for easy navigation across regions. Also change the zoom level of the initial rendering.

Zooming and panning is enabled in the ASP.NET Core Maps

Displays a tooltip on moving mouse over the ASP.NET Core Maps


The tooltip displays details about the shape value on mouse hover. Tooltips are also displayed for markers and bubbles on a map.


Drill-down the rendered ASP.NET Core Maps to display a different shape data located on another layer. For example, in the initial layer render the world map and on clicking a particular continent, render it separately on another layer.

ASP.NET Core Maps is rendered with multiple layers and enabled drilldown option

Particular shape is selected in the rendered ASP.NET Core Maps

Selection and highlight

Select a particular shape on mouse click or highlight on mouse hover to bring the focus to the other shapes on a map.

Custom shapes

Create an ASP.NET Core Map with custom shapes by rendering personalized GeoJSON data to indicate building infrastructure, points of interest, flight/bus seat arrangement, cricket stadium, and more.

Bus seat selection is simulated in the ASP.NET Core Maps

ASP.NET Core Map is rendered with annotation which has direction compass image


Display any HTML element as an annotation at a specific point of interest on a map. For example, place a direction compass image on the map using annotation. Also add multiple annotations to a map.


Change the projection of the default rendering map based on the need. The ASP.NET Core Maps component supports various types of projections namely, Mercator, Rectangular, Miller, Eckert3, Eckert5, Eckert6, and Winkel3.

ASP.NET Core Maps is rendered with title and subtitle

Title and subtitle

Add title and subtitle to visualize additional information on the ASP.NET Core Maps. Fonts and alignment of the title and subtitle can also be customized.


Customize the look and feel of an ASP.NET Core Map by changing the fill color, background, border, and opacity of shapes. Almost all the elements in the ASP.NET Core Maps are customizable. This component also provides built-in palettes with customizable options, by default.

ASP.NET Core Map is rendered with customized appearance

State persistence with ASP.NET Core Maps Library

State persistence

State persistence allows the Maps component to maintain state by storing the most recent model value in browser cookies. When the appropriate setting is enabled, some of the Maps component model values are preserved even after the page is refreshed.


Export or print the rendered ASP.NET Core Maps to save a local copy for further use.

Export ASP.NET Core Maps illustration


Export the ASP.NET Core Maps to a PDF document or in image formats such as SVG, PNG, and JPEG in client-side.

Print ASP.NET Core Maps illustration


Print the rendered ASP.NET Core Maps directly from the browser.


Keyboard navigation in ASP.NET Core Maps Library

Keyboard Navigation

The ASP.NET Core Maps library ensures that every element is keyboard accessible. Major features like zooming, panning, shape selection, legend, and drill down can be performed using just keyboard shortcuts, no mouse interaction required. This helps in creating highly accessible applications using this component.

Accessibility in ASP.NET Core Maps Library


The ASP.NET Core Maps library has complete WAI-ARIA accessibility support. The Maps UI includes high-contrast visual elements that help visually impaired people have the best viewing experience. Also, valid UI descriptions are easily accessible through assistive technologies such as screen readers.

Other supported frameworks

Maps is also available in Blazor, Angular, React, Vue, and JavaScript frameworks. Check out the different Maps platforms from the links below,

Supported browsers

The ASP.NET Core Maps Library works well with all modern web browsers such as Chrome, Firefox, Microsoft Edge, Safari, and Opera.

Supported browsers


Frequently Asked Questions

  • Render geometric or custom shapes using the GeoJson data.
  • Render maps from the map providers like Bing, OSM, and Google maps.
  • Add markers on maps at the specified latitude and longitude.
  • Fast-paced performance on zooming and panning with elegant animation.
  • One of the best ASP.NET Core Maps in the market that offers feature-rich UI to interact with the software.
  • Simple configuration and API.
  • Supports all modern browsers.
  • Mobile-touch friendly and responsive.
  • Expansive learning resources such as demos and documentation to learn quickly and get started with ASP.NET Core Maps.

You can find our ASP.NET Core Maps Library demo, which demonstrates how to render and configure Maps component.

No, this is a commercial product and requires a paid license. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue and five or fewer developers.

A good place to start would be our comprehensive getting started documentation.

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