ArcGIS vs OpenLayers: What are the differences?
ArcGIS and OpenLayers can be primarily classified as "Mapping APIs" tools.
OpenLayers is an open source tool with 5.31K GitHub stars and 1.99K GitHub forks. Here's a link to OpenLayers's open source repository on GitHub.
FlightAware, Zoron Creative Services, and ICFM AG are some of the popular companies that use OpenLayers, whereas ArcGIS is used by Scarabee Aviation Group, Zoteca, and GRFN. OpenLayers has a broader approval, being mentioned in 12 company stacks & 43 developers stacks; compared to ArcGIS, which is listed in 6 company stacks and 5 developer stacks.