Info Windows

Introduction
Add an info window
Open an info window
Close an info window
Move an info window

Introduction

An InfoWindow displays content (usually text or images) in a popup window above the map, at a given location. The info window has a content area and a tapered stem. The tip of the stem is attached to a specified location on the map.

Typically you will attach an info window to a marker, but you can also attach an info window to a specific latitude/longitude, as described in the section on adding an info window below.

Broadly speaking, info windows are a type of overlay. For information on other types of overlay, see Drawing on the map.

Add an info window

The InfoWindow constructor takes an InfoWindowOptions object literal, which specifies the initial parameters for displaying the info window.

The InfoWindowOptions object literal contains the following fields:

content contains either a string of text or a DOM node to display in the info window.
pixelOffset contains an offset from the tip of the info window to the location on which the info window is anchored. In practice, you should not need to specify this field. You can leave it at the default value.
position contains the LatLng at which this info window is anchored. Note: An InfoWindow may be attached either to a Marker object (in which case its position is based on the marker's location) or on the map itself at a specified LatLng. One way of retrieving a LatLng is by using the Geocoding service. Opening an info window on a marker will automatically update the position.
maxWidth specifies the maximum width of the info window in pixels. By default, an info window expands to fit its content, and auto-wraps text if the info window fills the map. If you add a maxWidth the info window will auto-wrap to enforce the specified width. If it reaches the maximum width and there is vertical room on the screen, the info window may expand vertically.

The content of the InfoWindow may contain a string of text, a snippet of HTML, or a DOM element. To set the content, either specify it within the InfoWindowOptions or call setContent() on the InfoWindow explicitly.

If you wish to explicitly size the content, you can put it in a <div> element and style the <div> with CSS. You can use CSS to enable scrolling too. Note that if you do not enable scrolling and the content exceeds the space available in the info window, the content may spill out of the info window.

Best practices: For the best user experience, only one info window should be open on the map at any one time. Multiple info windows make the map appear cluttered. If you only need one info window at a time, you can create just one InfoWindow object and open it at different locations or markers upon map events, such as user clicks. If you do need more than one info window, you can display multiple InfoWindow objects at the same time.

Open an info window

When you create an info window, it is not displayed automatically on the map. To make the info window visible, you need to call the open() method on the InfoWindow, passing it the Map on which to open, and optionally, the Marker with which to anchor it. If no marker is provided, the info window will open at its position property.

// This example displays a marker at the center of Australia.
// When the user clicks the marker, an info window opens.

function initMap() {
  var uluru = {lat: -25.363, lng: 131.044};
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 4,
    center: uluru
  });

  var contentString = '<div id="content">'+
      '<div id="siteNotice">'+
      '</div>'+
      '<h1 id="firstHeading" class="firstHeading">Uluru</h1>'+
      '<div id="bodyContent">'+
      '<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large ' +
      'sandstone rock formation in the southern part of the '+
      'Northern Territory, central Australia. It lies 335&#160;km (208&#160;mi) '+
      'south west of the nearest large town, Alice Springs; 450&#160;km '+
      '(280&#160;mi) by road. Kata Tjuta and Uluru are the two major '+
      'features of the Uluru - Kata Tjuta National Park. Uluru is '+
      'sacred to the Pitjantjatjara and Yankunytjatjara, the '+
      'Aboriginal people of the area. It has many springs, waterholes, '+
      'rock caves and ancient paintings. Uluru is listed as a World '+
      'Heritage Site.</p>'+
      '<p>Attribution: Uluru, <a href="https://en.wikipedia.org/w/index.php?title=Uluru&oldid=297882194">'+
      'https://en.wikipedia.org/w/index.php?title=Uluru</a> '+
      '(last visited June 22, 2009).</p>'+
      '</div>'+
      '</div>';

  var infowindow = new google.maps.InfoWindow({
    content: contentString
  });

  var marker = new google.maps.Marker({
    position: uluru,
    map: map,
    title: 'Uluru (Ayers Rock)'
  });
  marker.addListener('click', function() {
    infowindow.open(map, marker);
  });
}

<div id="map"></div>

/* Always set the map height explicitly to define the size of the div
 * element that contains the map. */
#map {
  height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

<!-- Replace the value of the key parameter with your own API key. -->
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap">
</script>

// This example displays a marker at the center of Australia.
// When the user clicks the marker, an info window opens.

function initMap() {
  var uluru = {lat: -25.363, lng: 131.044};
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 4,
    center: uluru
  });

  var contentString = '<div id="content">'+
      '<div id="siteNotice">'+
      '</div>'+
      '<h1 id="firstHeading" class="firstHeading">Uluru</h1>'+
      '<div id="bodyContent">'+
      '<p><b>Uluru</b>, also referred to as <b>Ayers Rock</b>, is a large ' +
      'sandstone rock formation in the southern part of the '+
      'Northern Territory, central Australia. It lies 335&#160;km (208&#160;mi) '+
      'south west of the nearest large town, Alice Springs; 450&#160;km '+
      '(280&#160;mi) by road. Kata Tjuta and Uluru are the two major '+
      'features of the Uluru - Kata Tjuta National Park. Uluru is '+
      'sacred to the Pitjantjatjara and Yankunytjatjara, the '+
      'Aboriginal people of the area. It has many springs, waterholes, '+
      'rock caves and ancient paintings. Uluru is listed as a World '+
      'Heritage Site.</p>'+
      '<p>Attribution: Uluru, <a href="https://en.wikipedia.org/w/index.php?title=Uluru&oldid=297882194">'+
      'https://en.wikipedia.org/w/index.php?title=Uluru</a> '+
      '(last visited June 22, 2009).</p>'+
      '</div>'+
      '</div>';

  var infowindow = new google.maps.InfoWindow({
    content: contentString
  });

  var marker = new google.maps.Marker({
    position: uluru,
    map: map,
    title: 'Uluru (Ayers Rock)'
  });
  marker.addListener('click', function() {
    infowindow.open(map, marker);
  });
}

View example.

The following example sets the maxWidth of an info window: view example.

Close an info window

By default, an InfoWindow remains open until the user clicks the close control (a cross at top right of the info window). If you wish, you can close the info window explicitly by calling its close() method.

Move an info window

There are a couple of ways to change the location of an info window:

Call setPosition() on the info window, or
Attach the info window to a new marker using the InfoWindow.open() method. Note: If you call open() without passing a marker, the InfoWindow will use the position specified upon construction through the InfoWindowOptions object literal.

Customization

The InfoWindow class does not offer customization. Instead, see the customized popup example to see how to create a fully customized popup.