Census tracts styled with a dot density renderer to show level of educational attainment

The ArcGIS Maps SDK for JavaScript ArcGIS Maps SDK for JavaScript, previously known as ArcGIS API for JavaScript, is a developer product for building mapping and spatial analysis applications for the web. Learn more gives you the ability to style layers A layer is a reference to a collection of geographic data that is used to access and display data. The data for layers are typically provided by the basemap layer service and data services. Learn more and create visualizations for maps A map is a collection of layers that are displayed in 2D. It is typically composed of a basemap layer and data layers. Learn more (2D) and scenes A scene is a collection of layers that are displayed in 3D. It is typically composed of a basemap layer, data layers, and 3D data. Learn more (3D). Styling conveys a story about the data and helps you build more meaningful applications.

Learn how to style layers to create meaningful visualizations in the topics below.

Get started

Location style

Learn how to style layers with a simple renderer using 2D and 3D symbols.

Data-driven styles

Learn how to style layers based on data values using different renderers and symbols.

High density data

Learn various techniques for visualizing large, high density datasets.

3D visualization

Learn about how to visualize data using 3D symbols.

Techniques and best practices

Learn best practices for designing a layer style, including topics such as scale, color, and visual effects.

Symbols and color ramps

Browse hundreds of web styles and color ramps, and copy and paste them directly into your app.