MapTools
ArcGIS Maps SDK for JavaScript
vs
Observable

ArcGIS Maps SDK for JavaScript: Esri's web SDK for 2D and 3D mapping apps. Observable: Data notebooks and dashboards with D3 and Plot maps.

ArcGIS Maps SDK for JavaScriptObservable
CategoryMap Libraries & SDKsGeospatial Data Visualization
Pricing modelFreemiumFreemium
Starts atSee websiteSee website
Free tierFree with ArcGIS Location Platform tierFree for public notebooks
Open sourceNoNo
Software licence——
API——
PlatformsJavaScriptWeb, JavaScript
Made byEsri—
Commercial useCheck termsCheck terms
Export / print imagesCheck termsCheck terms
Offline / cachingCheck termsCheck terms
Visits from MapTools22
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ArcGIS Maps SDK for JavaScript features

  • 2D maps and 3D scenes
  • Widgets for editing and measurement
  • Client-side analysis
  • Integration with ArcGIS services
ArcGIS Maps SDK for JavaScript alternatives

Observable features

  • Reactive notebooks
  • Observable Plot geo marks
  • D3 projections
  • Data apps framework
Observable alternatives

Summary based on public information. Check each provider's current pricing and terms.