ArcGIS API for JavaScript Web Optimizer discontinued

Last Published: September 29, 2021


The Web Optimizer is no longer available for creating 3.x-based custom builds of the ArcGIS API for JavaScript. If your application references a custom build that was previously created, it will continue to work for the time being, however all custom builds will be removed from our hosting environment in July 2022.


Our recommendation is to start using version 4.x of the ArcGIS API for JavaScript, as it offers a lot more flexibility and simplicity when creating custom builds. See Introduction to Tooling for more details. If you would like to continue to use 3.x, we recommend using the CDN version or download a local build.

Article ID:000026486

  • ArcGIS API for JavaScript 3 x

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